EM-2108 | 1.5 GHz – 10 GHz

The EM-2108 is a standard test fixture for evaluation of the electromagnetic shielding effectiveness (SE) of planar materials. The fixture is a section of coaxial transmission line broken to allow the insertion of planar test materials. Although ASTM D4935-10 is currently limited to an upper frequency of 1.5 GHz, the EM-2108 meets and complies fully with both the impedance and SE requirements called out in ASTM test method D4935-10 up to 10 GHz. These results are shown in Figures 1 & 2. The measured data relates to the shielding effectiveness due to a plane wave (far field EM wave) from which near field values for magnetic and electric fields may be inferred.

The EM-2108 is provided with a reference standard test specimen, a load standard test specimen, and a dynamic range specimen. Dynamic range of greater than 80 dB is achievable, although the cables and other test system components usually establish the limiting factors.

Frequency Range: 1.5 GHz – 10 GHz
Fixture Impedance: 50 ± 0.5 Ω
Measured SE of a Gold Specimen: 32 ± 3 dB
Connector: Type N

Length: 14 cm (5.5”)
Height (Vertical): 16.9 cm (6.63’’)
Height (Horizontal): 11.9 cm (4.7’’)
Fixture Diameter: 3.2 cm (1.26″)
Base Diameter: 15.25 cm (6’’)

EM-2107A | 30 MHz – 1.5 GHz

The EM-2107A is a standard test fixture for evaluation of the electromagnetic shielding effectiveness of planar material. The fixture is an enlarged section of coaxial transmission line and complies fully with the requirements of ASTM test method D4935-1. The measured data relates to the shielding effectiveness due to a plane wave (far field EM wave) from which near field values for magnetic and electric fields may be inferred. The EM-2107A is provided with a reference standard test specimen, a dynamic range specimen. Dynamic range of greater than 80dB is achievable, although the cables and other test system components usually establishes the limiting factors.

Frequency Range: 30 MHz-1.5 GHz
Connector: Type N

Length: 40.5 cm (16”)
Diameter: 13.5 cm (5.3”)
Weight: 12 kg (26.5 lbs.)

EM-6992

The Electro-Metrics EM-6992 Hand Held Probe Set is designed to assist in pinpointing the specific source of emissions during the diagnostic testing phase of an EMI compliance investigation. A selection of probes of varying sensitivities is provided for both E-field and H-field analysis up to 1000 MHz.

Applications

When used with any 50 ohm measuring instrument the EM-6992 set allows for easy identification of emission sources.

Configuration

All probes supplied with BNC connector and custom carrying case.

EM-6987 | 1 kHz – 110 MHz

The EM-6987 is capable of measuring signals and noise superimposed on power currents up to 300 A from DC to 400 Hz. Intermodulation effects on current probe output are also negligible.

The EM-6987 can be connected to a conventional oscilloscope, voltmeter or interference analyzer or spectrum analyzer by means of a coaxial cable, such as Electro-Metrics EM-1106 or EM-1305, (Not included with probe).

Each current probe is calibrated for transfer conductance in a circuit having a 50 ohm resistive load. A serialized transfer impedance chart is supplied with each probe.

Frequency Range: 1 kHz-110 MHz
Impedance: 50 ohms Nominal
Output Connector: BNC
Conductor Opening: Up to and including 25 mm (1 inch)
Probe Factor: +36 dB at 1 kHz to
-14 dB at 10 MHz to
-10 dB at 110 MHz

Outside Diameter: 73 mm (2.875”)
Thickness: 32 mm (1.25”)
Weight: 454 g (1 lb)

EM-6981 | 9 kHz – 110 MHz

Current probes enable you to measure conducted current without direct connection to the circuit under test by clamping around the conductor, current carrying wire or structural member being tested.

The probe consists of two semicircles that clamp around conductors by means of a clip. Utilizing a core of ferrous materials separated by an air gap to prevent erroneous measurements due to saturation, models EM-6980 and EM-6981 are capable of measuring signals and noise superimposed on power currents up to 300 A from DC to 400 Hz. Intermodulation effects on the current probe outputs are also negligible.

The EM-6980 and EM-6981 can be connected to a conventional oscilloscope, voltmeter or interference analyzer by means of a coaxial cable, such as Electro-Metrics EM-1106 or EM-1305 (not included with probe).

Each current probe is calibrated for transfer conductance in a circuit having a 50 ohm resistive load. A serialized transfer impedance chart is supplied with each probe.

Frequency Range: 9 kHz – 110 MHz
Impedance: 50 ohms Nominal
Output Connector: TNC
Conductor Opening: Up to and including 25 mm (1 inch)
Probe Factor: +23 dB at 10 kHz to
-14 dB at 10 MHz to
-12 dB at 110 MHz

Outside Diameter: 73 mm (2.875”)
Thickness: 32 mm (1.25”)
Weight: 454 g (1 lb)

EM-6980 | 20 Hz – 50 kHz

Current probes enable you to measure conducted current without direct connection to the circuit under test by clamping around the conductor, current carrying wire or structural member being tested.

The probe consists of two semicircles that clamp around conductors by means of a clip. Utilizing a core of ferrous materials separated by an air gap to prevent erroneous measurements due to saturation, models EM-6980 and EM-6981 are capable of measuring signals and noise superimposed on power currents up to 300 A from DC to 400 Hz. Intermodulation effects on the current probe outputs are also negligible.

The EM-6980 and EM-6981 can be connected to a conventional oscilloscope, voltmeter or interference analyzer by means of a coaxial cable, such as Electro-Metrics EM-1106 or EM-1305 (not included with probe).

Each current probe is calibrated for transfer conductance in a circuit having a 50 ohm resistive load. A serialized transfer impedance chart is supplied with each probe.

Frequency Range: 20 Hz-50 kHz
Impedance: 50 ohms Nominal
Output Connector: BNC
Conductor Opening: Up to and including 25 mm (1 inch)
Probe Factor: +64 dB at 20 Hz to
+7 dB at 10 kHz to
0 dB at 50 kHz

Outside Diameter: 73 mm (2.875”)
Thickness: 32 mm (1.25”)
Weight: 454 g (1 lb)

EM-6882 | 20 MHz to 230 MHz

The EM-6880, EM-6881 and EM-6882 Magnetic Field Probes operate in conjunction with any 50 ohm input impedance receivers.

For optimum efficiency each probe covers a different RF band. The EM-6880, EM-6881 and EM-6882 probes are non-calibrated and hand held for versatility and mobility. Optional calibration is available.

Applications

The EM-6880, EM-6881 and EM-6882 Magnetic Field Probes are particularly advantageous for searching for RF leakage. The probes are electrostatically shielded and are therefore sensitive only to the magnetic component of the electromagnetic field.

Each probe has a rubberized covering and is distinctively color-coded by frequency range for easy identifications.

The probes are especially useful in determining the side of an article under test, which radiates the highest level prior to running a MIL-STD, or FCC radiated emissions test.

Frequency Range: 20 MHz to 230 MHz

Length: 240 mm (9 ½”)
Inside Circle: 50mm (2”)
Across Circle: 90 mm (3 ½”)
Ring Outside Diameter: 92 mm (3 5/8”)
Weight: 454 g (1 lb.)

EM-6881 | 480 kHz to 30 MHz

The EM-6880, EM-6881 and EM-6882 Magnetic Field Probes operate in conjunction with any 50 ohm input impedance receivers.

For optimum efficiency each probe covers a different RF band. The EM-6880, EM-6881 and EM-6882 probes are non-calibrated and hand held for versatility and mobility. Optional calibration is available.

Applications

The EM-6880, EM-6881 and EM-6882 Magnetic Field Probes are particularly advantageous for searching for RF leakage. The probes are electrostatically shielded and are therefore sensitive only to the magnetic component of the electromagnetic field.

Each probe has a rubberized covering and is distinctively color-coded by frequency range for easy identifications.

The probes are especially useful in determining the side of an article under test, which radiates the highest level prior to running a MIL-STD, or FCC radiated emissions test.

Frequency Range: 480 kHz to 30 MHz

Length: 240 mm (9 ½”)
Inside Circle: 50mm (2”)
Across Circle: 90 mm (3 ½”)
Ring Outside Diameter: 92 mm (3 5/8”)
Weight: 454 g (1 lb.)

EM-6880 | 9 kHz – 520 kHz

The EM-6880, EM-6881 and EM-6882 Magnetic Field Probes operate in conjunction with any 50 ohm input impedance receivers.

For optimum efficiency each probe covers a different RF band. The EM-6880, EM-6881 and EM-6882 probes are non-calibrated and hand held for versatility and mobility. Optional calibration is available.

Applications

The EM-6880, EM-6881 and EM-6882 Magnetic Field Probes are particularly advantageous for searching for RF leakage. The probes are electrostatically shielded and are therefore sensitive only to the magnetic component of the electromagnetic field.

Each probe has a rubberized covering and is distinctively color-coded by frequency range for easy identifications.

The probes are especially useful in determining the side of an article under test, which radiates the highest level prior to running a MIL-STD, or FCC radiated emissions test.

Frequency Range: 9 kHz to 520 kHz

Length: 240 mm (9 ½”)
Inside Circle: 50mm (2”)
Across Circle: 90 mm (3 ½”)
Ring Outside Diameter: 92 mm (3 5/8”)
Weight: 454 g (1 lb.)

EM-7848 | 6.5 GHz – 10 GHz

The Electro-Metrics Model EM-7848 Tunable Notch Filter Network is a tunable cavity rejection filter operating from 6.5 to 10.0 GHz and used to perform specification compliance testing as stated in MIL-STD-462 and other related standards where attenuation is required at one selected frequency. The cavity exhibits very sharp resonances at the tuned frequency with low insertion loss and low skirt attenuation.

The EM-7848 has optimum performance when resonance in the TE₀₁₁ mode and can operate over a wide range of power levels. The cavity and associated tuning mechanism is constructed of copper, brass, and aluminum alloys.

Due to the precise nature of the cavity for operation in the designated frequency range, care should always be taken to ensure that the network mechanisms are not damaged when being used or transported.

Frequency Range: 6.5 GHz – 10.0 GHz
Rejection: 50 dB minimum @ tuned frequency
80 dB typical
Insertion Loss*: 35 dB worst case
Notch Characteristics:
Total Rejection** 35dB or more at f_o ±(<0.006f_o)
50dB or more at f_o ±(<0.0006f_o)
Impedance: Designed for 50 ohms system
Connector: Type N, female

** Total Rejection = Insertion loss at f_o + Notch Depth

Height: 40.2 cm (15.8″)
(w/ maximum screw extension)
Height, Cylinder: 14.7 cm (5.8″)
Diameter, Cylinder: 7.9 cm (3.1″)
Width, Stand: 13.0 cm (5.1″)
Weight: 3.4 kg (7.5 lbs.)

EM-7847 | 3 GHz – 6.5 GHz

The Electro-Metrics Model EM-7847 Tunable Notch Filter Network is a tunable cavity rejection filter operating from 3.0 to 6.5 GHz and used to perform specification compliance testing as stated in MIL-STD-462 and other related standards. The cavity exhibits very sharp resonances at the tuned frequency with low insertion loss and low skirt attenuation.

The EM-7847 has optimum performance when resonance in the TE₀₁₁ mode and can operate over a wide range of power levels. The cavity and associated tuning mechanism is constructed of copper, brass, and aluminum alloys.

Due to the precise nature of the cavity for operation in the designated frequency range, care should always be taken to ensure that the network mechanisms are not damaged when being used or transported.

Frequency Range: 3.0 GHz – 6.5 GHz
Rejection: 50 dB minimum @ tuned frequency
80 dB typical
Insertion Loss*: 15 dB worst case
Notch Characteristics:
Total Rejection** 35dB or more at f_o ±(<0.002f_o)
40dB or more at f_o ±(<0.0005f_o)
Impedance: Designed for 50 ohms system
Connector: Type N, female

** Total Rejection = Insertion loss at f_o + Notch Depth

Height: 65.4 cm (25.75″)
(w/ maximum screw extension)
Height, Cylinder: 26.0 cm (10.5″)
Diameter, Cylinder: 15.5 cm (6.1″)
Width, Stand: 20.3 cm (8.0″)
Weight: 7.5 kg (16.5 lbs)

EM-7846 | 2.2 GHz – 3.1 GHz

The Electro-Metrics Model EM-7846 Tunable Notch Filter Network is a turntable cavity rejection filter operating from 2.2 to 3.1 GHz and used to perform specification compliance testing as stated in MIL-STD-462 and other related standards where attenuation is required at one selected frequency. The cavity exhibits very sharp resonances at the tuned frequency with low insertion loss and low skirt attenuation.

The EM-7846 has optimum performance when resonance in the TE₀₁₁ mode and can operate over a wide range of power levels. The cavity and associated tuning mechanism is constructed of copper, brass, and aluminum alloys. The network is supported by four (4) legs mounted to the square base plate of the cavity cylinder.

Due to the precise nature of the cavity for operation in the designated frequency range, care should always be taken to ensure that the network mechanisms are not damaged when being used or transported.

Frequency Range: 2.2 GHz – 3.1 GHz
Rejection: 50 dB minimum @ tuned frequency
80 dB typical
Insertion Loss*: <5 dB typical. 15 dB worst case Notch Characteristics:
Total Rejection** 35dB or more at f_o ±(<0.006f_o)
40dB or more at f_o ±(<0.0002f_o)
Impedance: Designed for 50 ohms system
Connector: Type N, female

** Total Rejection = Insertion loss at f_o + Notch Depth

Height: 59.5cm (23.4″)
(with maximum screw extension)
Height, Cylinder: 23.1cm (9.1″)
Diameter, Cylinder: 21.0cm (8.25″)
Width, Stand: 26.7cm (10.5″)
Weight: 26.7cm (10.5″)

EM-7845 | 1 GHz – 2.2 GHz

The Electro-Metrics Model EM-7845 Tunable Notch Filter Network is a tunable cavity rejection filter operating from 1.0 to 2.2 GHz and used to perform specification compliance testing as stated in MIL-STD-462 and other related standards where attenuation is required at one selected frequency. The cavity exhibits very sharp resonances at the tuned frequency with low insertion loss and low skirt attenuation.

The EM-7845 has optimum performance when resonance in the TE₀₁₁ mode and can operate over a wide range of power levels. The cavity and associated tuning mechanism is constructed of copper, brass, and steel alloys. The network is supported by four (4) legs mounted to the square base plate of the cavity cylinder.

Due to the precise nature of the cavity for operation in the designated frequency range, care should always be taken to ensure that the network mechanisms are not damaged when being used or transported.

Frequency Range: 1 GHz – 2.2 GHz
Rejection: 50 dB minimum @ tuned frequency
80 dB typical
Insertion Loss*: <5 dB typical.
15 dB worst case
Notch Characteristics:
Total Rejection** 35dB or more at f_o ±(<0.002f_o)
40dB or more at f_o ±(<0.0005f_o)
Impedance: Designed for 50 ohms system
Connector: Type N, female

** Total Rejection = Insertion loss at f_o + Notch Depth

Height: 95.6 cm (37.6″)
(with maximum screw extension)
Height, Cylinder: 41.0 cm (16.1″)
Diameter, Cylinder: 41.3 cm (16.25″)
Width, Stand: 52.1 cm (20.5″)
Weight: 38.6 kg (85 lbs.)

EM-7844 | 375 MHz to 1 GHz

The EM-7844 Tunable Notch Filter Network is a tunable narrowband rejection filter operating from 375 MHz to 1 GHz. It is used whenever high rejection (attenuation) is required at one select frequency and low attenuation for the other frequencies. The high power rating of the EM-7844 permits its use for measurements on high power transmitters, providing the voltage input level is carefully regulated.

The EM-7844 covers from 375 MHz to 1 GHz in two (2) frequency bands. Band 1 covers from 375 MHz to 700 MHz, while Band 2 covers 700 MHz to 1 GHz. Each band uses a series of tuning networks comprising a variable capacitor plus assorted fixed resistors and inductors.

The EM-7844 is designed for bench top operation.

Frequency Range: 375 MHz to 1 GHz
Maximum Voltage:
71 Vrms at the tuned frequency
20 Vrms at all other frequencies
Number of Tuning Bands: 2
Band 1: 375 – 700 MHz
Band 2: 700 MHz – 1 GHz
Minimum Rejection: 50 dB
Connectors: Type N, female

Height: 14.7 cm (5.8”)
Length: 26.2 cm (10.3”)
Width: 25.7 cm (10.1”)
Weight: 4.5 kg (10 lbs.)

EM-7843 | 100 MHz – 375 MHz

The EM-7843 Tunable Notch Filter Network is a tunable narrowband rejection filter operating from 100 MHz to 375 MHz. It is used whenever high rejection (attenuation) is required at one select frequency and low attenuation for the other frequencies. The high power rating of the EM-7843 permits its use for measurements on high power transmitters, providing the voltage input level is carefully regulated.

The EM-7843 covers from 100 MHz to 375 MHz in two (2) frequency bands. Each band uses a series of tuning networks that is essentially a bridge-T network.

The EM-7843 is designed for bench top operation.

Frequency Range: 100 MHz – 375 MHz
Maximum Voltage:
71 Vrms at the tuned frequency
20 Vrms at all other frequencies
Number of Tuning Bands: 2
Band 1: 100 – 250 MHz
Band 2: 250 – 375 MHz
Minimum Rejection: 50 dB
Connectors: Type N, female

Height: 14.7 cm (5.8”)
Length: 26.2 cm (10.3”)
Width: 25.7 cm (10.1”)
Weight: 4.5 kg (10 lbs.)

EM-7842 | 15 MHz – 100 MHz

The EM-7842 Tunable Notch Filter Network is a tunable narrowband rejection filter operating from 15 MHz to 100 MHz. It is used whenever high rejection (attenuation) is required at one select frequency and low attenuation for the other frequencies. The high power rating of the EM-7842 permits its use for measurements on high power transmitters, providing the voltage input level is carefully regulated.

The EM-7842 covers from 15 MHz to 100 MHz in two (2) frequency bands using a variable capacitor and resistor plus two (2) interchangeable fixed inductance tuning coils. The tuning coils are stored in a separate carrying case when not in use. The tuning coil selected is inserted into the internal circuitry of the EM-7842 through the removable top cover of the unit.

The EM-7842 is designed for bench top operation.

Frequency Range: 15 MHz – 100 MHz
Maximum Voltage:
71 Vrms at the tuned frequency
20 Vrms at all other frequencies
Number of Tuning Bands: 2
Minimum Rejection: 50 dB
Connectors: Type N, female

Height: 19.1 cm (7.5”)
Length: 31.2 cm (12.3”)
Width: 36.8 cm (14.3”)
Weight: 6.36 kg (14 lbs.)

EM-7841 | 10 kHz – 15 MHz

The EM-7841 Tunable Notch Filter Network is a tunable narrowband rejection filter operating from 10 kHz to 15 MHz. It is used whenever high rejection (attenuation) is required at one select frequency and low attenuation for the other frequencies. The high power rating of the EM-7841 permits its use for measurements on high power transmitters, providing the voltage input level is carefully regulated.

The EM-7841 covers from 10 kHz to 15 MHz in six (6) frequency bands using a variable capacitor and resistor plus six (6) interchangeable fixed inductance tuning coils. The tuning coils are stored in a separate carrying case when not in use. The tuning coil selected is inserted into the internal circuitry of the EM-7841 through the removable top cover of the unit.

The EM-7841 is designed for bench top operation.

Frequency Range: 10 kHz – 15 MHz
Maximum Voltage:
71 Vrms at the tuned frequency
20 Vrms at all other frequencies
Number of Tuning Bands: 6
Minimum Rejection: 50 dB
Connectors: Type N, female

Height: 27.9 cm (11”)
Length: 36.8 cm (14.3”)
Width: 36.8 cm (14.3”)
Weight: 11.4 kg (25 lbs.)

EM-7509 | 400 Hz

The Electro-Metrics EM-7507, EM-7508 and EM-7509 Notch Rejection Filters enhance the performance of any 50 ohm measuring instrument by eliminating the 50 Hz, 60 Hz and 400 Hz power line frequencies.

The EM-7507 eliminates 50 Hz frequencies, the EM-7508 eliminates 60 Hz frequencies, while the EM-7509 eliminates 400 Hz frequencies. This prevents spurious responses frequently encountered in field intensity meters when testing to MIL-STD- 461 plus other government, federal, and international standards.

Note: EM-7507, EM-7508 and EM-7509 Notch Rejection Filters may be purchased separately.

Notch Frequency: Equals 400 Hz
Rejection: 45 dB minimum @ 400 Hz
Notch Width: Less than 180 Hz @ 20 dB down
Input Levels: 10 VRMS (typical), 20 VRMS (max)

EM-7508 | 60 Hz

The Electro-Metrics EM-7507, EM-7508 and EM-7509 Notch Rejection Filters enhance the performance of any 50 ohm measuring instrument by eliminating the 50 Hz, 60 Hz and 400 Hz power line frequencies.

The EM-7507 eliminates 50 Hz frequencies, the EM-7508 eliminates 60 Hz frequencies, while the EM-7509 eliminates 400 Hz frequencies. This prevents spurious responses frequently encountered in field intensity meters when testing to MIL-STD- 461 plus other government, federal, and international standards.

Note: EM-7507, EM-7508 and EM-7509 Notch Rejection Filters may be purchased separately.

Notch Frequency: Equals 60 Hz
Rejection: 35 dB minimum @ 60 Hz
Notch Width: Less than 20 Hz @ 20 dB down
Input Levels: 10 VRMS (typical), 20 VRMS (max)

EM-7507 | 50 Hz

The Electro-Metrics EM-7507, EM-7508 and EM-7509 Notch Rejection Filters enhance the performance of any 50 ohm measuring instrument by eliminating the 50 Hz, 60 Hz and 400 Hz power line frequencies.

The EM-7507 eliminates 50 Hz frequencies, the EM-7508 eliminates 60 Hz frequencies, while the EM-7509 eliminates 400 Hz frequencies. This prevents spurious responses frequently encountered in field intensity meters when testing to MIL-STD- 461 plus other government, federal, and international standards.

Note: EM-7507, EM-7508 and EM-7509 Notch Rejection Filters may be purchased separately.

Notch Frequency: Equals 50 Hz
Rejection: 40 dB minimum @ 50 Hz
Notch Width: Less than 20 Hz @ 20 dB down
Input Levels: 10 VRMS (typical), 20 VRMS (max)

EM-6001-2 | 1 kHz – 40 GHz

Electro-Metrics EM-6001-2 antenna kit with all options included consists of Omni-Directional and Directional antennas covering the frequency range of 1 kHz to 40 GHz. All antennas and accessories are placed in one carrying case, which is provided. The fully optioned kit consists of eight antennas, tripod, cables, probes and accessories. Optional accessories can be removed, but limitations to the coverage will occur. The unique feature of the kit is that both standard and optional items are designed to fit in one standard size carrying case for easy transport.

1- EM-6851 Omni-Directional Wideband Antenna (2 GHz–18 GHz)
1- EM-6104-1 Omni-Directional Wideband Discone Antenna (20 MHz-18 GHz)
1- EM-6939 Log Periodic Antenna (800 MHz-20 GHz)
1- EM-6869 Loop Antenna (9 kHz–50 MHz)
1- EM-6905 Rod Antenna (1 kHz–200 MHz)
1- EM-6898 Right Angle Whip
1- EM-6089-1 Battery Power Supply
1- EM-6083-1 Charger with Power Cord
1- EM-6134 Tripod
2- EM-1316 20 Ft. SMA Male to SMA Male
2- PE-9081 SMA Female to N Male Adapter
2- PE-9082 SMA Male to N Female Adapter
1- EM-1530 Carrying Case (Pelican)

1- EM-6087 12/15 Volt External DC Supply
1- EM-6903 24” BNC Right Angle Rod
1- EM-6987 Current Probe 1 kHz-110 MHz
1- EM-6142 Looped Test Power Cord
1- EM-6963 18-40 GHz Horn
1- EM-1317 10 foot k-male to k-male cable
1- EM-6993 Probe, 6 cm Loop
1- EM-6994 Probe, 3 cm Loop
1- EM-6995 Probe, 3 cm Loop
1- EM-6996 Probe, 3.2 cm Ball “E”
1- EM-6997 Probe, E Field Stub
1- X-H141 Extension

EM-6000 | 10 kHz – 18 GHz

Electro-Metrics antenna kit consists of OmniDirectional and Directional antennas covering the frequency range of 10 kHz to 18 GHz. Accessories are included for use with the antennas. All antennas and accessories are placed in two carrying cases, which are provided.

1- EM-6105 Omni-Directional Wideband Discone Antenna (10 kHz – 2 GHz)
1- EM-6865 Omni-Directional Wideband Antenna (2 – 18 GHz)
1- EM-6877 Active Loop Antenna (9 kHz – 30 MHz)
1- EM-6952 Log Periodic Antenna (1 – 18 GHz)
1- EM-6951 Log Periodic Antenna (300 MHz – 1 GHz)
1- EM-6883 Magnetic Field Probe (30 – 300 MHz)

1- EM-6106 Battery Pack Charger Module
1- Tripod
1- EM-6883 Magnetic Field Probe (30 – 300 MHz)
1- Low Loss Armored Cable 10′ long
2- Carrying Cases

EM-6865A | 2 GHz – 18 GHz

The EM-6865A Omni-Directional Wideband Antenna is capable of operating as either a transmitting or receiving antenna over the 2 to 18 GHz frequency range. The antenna is enclosed in a weather resistant radome, and is a ruggedized version of EM-6865. The redesigned mounting fixture provides an easy means to mount to roof-racks or other rails or surfaces.

Frequency Range: 2 GHz – 18 GHz
Impedance: 50 Ohms, nominal
VSWR, average: <2:1
Gain: 0 dBi, typical
Connector: N-type, female
Continuous Power: 5 W

Length: 6.03 cm (2 3/8″)
Diameter: 11.11 cm (4 3/8″)
Weight: .28 kg (.61 lb.)
Mounting: Standard 8-32 thread x2

EM-6865 | 2 GHz – 18 GHz

The EM-6865 Omni-Directional Wideband Antenna is capable of operating as either a transmitting or receiving antenna over the 2 to 18 GHz frequency range.

The EM-6865 consists of two-brass conical elements connected point-topoint to form a hourglass shaped antenna element. The center conductor of a rigid coaxial cable is connected to the upper cone, while the shield is connected to the lower cone. The cable connects to a Type “N” (female) connector fastened to a phenolic base plate.

A 25.4 cm (10”) support rod provides a means for mounting the antenna to any tripod with a 1/4-20 mount.

The length of the support rod allows a microwave amplifier to be connected directly to the output connector of the antenna, reducing the potential signal loss compared to an amplifier connected at another point in the signal path.

Frequency Range: 2 GHz – 18 GHz
Polarization: Vertical
Output Impedance: 50 Ohms, nominal
VSWR, average: < 2:1 Gain: 0 dBi, typical
Connector: Type N, female
Continuous Power: 5 W

Diameter: 10.16 cm (4″)
Length, Support Rod: 25.4 cm (10″)
Height, Shield Tube: 7.62 cm (3”)
Overall Height: 33.0 cm (13”)
(Antenna & Support Rod)
Weight: .45 kg (1 lb.)
Mounting: Standard ¼ – 20 Thread

EM-6860 | 60 MHz – 1GHz

The EM-6860 Omni Wideband Antenna is a vertically polarized broadband antenna designed to operate from 60 MHz to 1 GHz and is intended for Spectrum monitoring. The antenna utilizes a passive filter plus an amplifier circuit for increased gain over the entire bandwidth.

The antenna amplifier has a minimum gain of 9.5 dB and uses a coaxial transfer switch to connect power to the amplifier. The switch also switches the signal either through the RF amplifier or, when the input power is removed, the normally closed contacts on the switch connect the signal directly to the output connector. The “fail safe” feature allows the antenna circuitry to provide passive reception in a power off condition. An eleven-element high pass filter (cutoff frequency = 60 MHz) yields 60 dB rejection at 40 MHz.

The EM-6860 is constructed of precision machine aluminum with a G-10 fiberglass cylindrical housing.

Frequency Range: 60 MHz – 1 GHz
Polarization: Vertical
Output Impedance: 50 Ohms
Operating Modes: Passive Active
Fail Safe Mode: Passive
Gain (minimum): 9.5 dBi Active
Consumption: 25 W @ 115 VAC, 60 Hz
Passive Dipole Gain:
60 MHz: -40 dBi (minimum)
100 MHz: -17 dBi (minimum)
1000 MHz: 0 dBi (minimum)

High Pass Filter: 11 elements
Cutoff Frequency: 60 MHz
Rejection @ 40 MHz: 40 dB (minimum)
Connector: Type N
Power Connector: MS3102E-10SL-3P

Diameter: 20.7 cm (8.15″)
Height: 69.85 cm (27.5″)
Weight: 5.44 kg (12 lbs.)

EM-6857 | 20 MHz – 40 GHz

The Electro-Metrics EM-6857 Ultra-Wideband Passive Omni-Directional Antenna has an amazing frequency coverage from below 20 MHz to well above 40 GHz.

With nominal gains of 0 dBi or higher over 99.5% of the antenna coverage frequency range, this antenna is the perfect device for SIGINT or any other application where a small, rugged, high performance passive antenna is required.

Frequency Range: 20 MHz – 40 GHz
Beam-width: Omni-directional
Impedance: 50 Ohms, Nominal
Gain: 200 MHz – 40 GHz
Nominal 0dBi or Greater
@ 100 MHz Nominal –17 dBi
@ 20 MHz Nominal –40 dBi
Connector: Type ‘k’ (2.92 mm)

Overall Length: 44.5 cm (17.5”)
With standard tripod mount: 58 cm (22.5”)
Diameter: 11.5 cm (4.5”)
Weight: 1.3kg ( 2.8 lbs )
Temperaure Ranges:
Operating: -20C to +50C
Storage: -30C to +75C

EM-6855 | 4.5 GHz – 40 GHz

The EM-6855 Omni-Directional Wideband Antenna is capable of operating as either a transmitting or receiving antenna over the 4.5 to 40 GHz frequency range.

An omni-directional antenna is an antenna which radiates power (or intercepts electromagnetic fields) uniformly in one plane, with a directive pattern shape in a perpendicular plane. The EM- 6855 omni-directional antenna is a vertically polarized antenna, and exhibits a 360 degree pattern in the horizontal plane.

Directivity and gain are directly related in antennas. The directivity of an antenna is a statement of how the of RF energy is focused. An omni-directional antenna and a directional antenna such as a horn, having the same amount of RF energy at the connector yield different fields. From a transmission point of view, the energy radiated by the omni directional antenna is distributed over a large area, whereas the same energy is concentrated into a smaller area by the directional antenna.

The signal strength measured at a given distance from an omni -directional antenna versus that measured in the beam of a directional antenna is lower. This lower signal level corresponds to the lower gains exhibited by omnidirectional antennas.

The EM-6855 antenna is enclosed in a weather resistant radome. A 25.4 cm (10”) support rod provides a means for mounting the antenna to the ElectroMetrics Model EM-6134 Tripod. A threaded ¼ – 20 female connector is located at the end of the rod.

Frequency Range: 4.5 GHz – 40 GHz
Polarization: Vertical
Output Impedance: 50 Ohms, nominal
VSWR, typical: < 1.7:1
VSWR worst case: < 2.0:1
Average Gain: 0 dBi, typical
Connector: Type K, female
Continuous Power: 20 Watts

Diameter: 5.72 cm (2.25″)
Height: 5.72 cm (2.25”)
Weight: 0.114 kg (0.25 lb.)
Mounting: (2) #8-32 tpi mounting studs

EM-6853 | 300 MHz – 40 GHz

The Electro-Metrics Corporation EM-6853 Ultra-Wideband Passive Omni-Directional Antenna has a broadband frequency coverage from below 300 MHz to well above 40 GHz.

With nominal gains of 0 dBi or higher over 99.5% of the antenna coverage frequency range, this antenna is the perfect device for receiving, monitoring, SIGINT, or any other application where a small, rugged, high performance passive ceiling mount antenna is required.

Frequency Range: 300 MHz – 40 GHz
Beam-width: Omni-directional
Impedance: 50 Ohms, Nominal
Gain: 700 MHz – 40 GHz
Nominal 0dBi or Greater
@ 100 MHz Nominal –40 dBi
@ 300 MHz Nominal –7 dBi
Connector: Type K

Overall Height: 12.7cm (5”) (with connector)
Diameter: 20.3 cm (8”)

EM-6851 | 2 GHz – 18 GHz

The EM-6851 Omni-Directional Wideband Antenna is capable of operating as either a transmitting or receiving antenna over the 2 to 18 GHz frequency range. This antenna provides a 45% size reduction when compared to similarly performing models. The antenna is enclosed in a weather resistant radome. The length of the support rod allows a microwave amplifier to be connected directly to the output connector, reducing the potential signal loss compared to an amplifier connected at a more distant point.

Frequency Range: 2 GHz – 18 GHz
Polarization: Vertical
Output Impedance: 50 Ohms, nominal
VSWR, average: < 2:1 typical Gain: 0 to +5 dBi
Connector: Type SMA (Female)
Continuous Power: 5 W

Diameter: 10.16 cm (4”)
Height, Shield Tube: 4.90 cm (1 15/16”)
Overall Height: 33.0 cm (13”)
(Antenna & Support Rod)
Weight: 0.46 kg (1 lb.)
Rod Mounting: Standard ¼ – 20 Thread
Antenna Mounting: Mate to #8-32 Stud

EM-6116 | 2 GHz – 10 GHz

The EM-6116 is a vertically polarized, omnidirectional antenna covering the frequency range 2 to 10 GHz. It is enclosed in a weather resistant radome. Smaller than other similar antennas, the EM-6116 is ideal for covert applications.

Frequency Range: 2 GHz to 10 GHz
Gain, nominal: +1 dBi
Deviation from Omni: ±1 dB
VSWR: 2.0:1, maximum
Impedance: 50 Ohms
Power Handling: 25 W
Connector: Type N, female

Length: 8.5 cm (3.35”)
Length Over Connector: 10.4 cm (4.1”)
Diameter: 5.1 cm (2.0”)
Weight: 204 g (7.2 oz.)

EM-6905 | 1 kHz – 200 MHz

The Electro-Metrics EM-6905 41” Active Vertical Antenna includes an amplifier that results in high sensitivity to the electric field in the frequency range of 1 kHz to 200 MHz. The EM-6905 can easily be used with any 50-ohm receiving instrument improving sensitivity over a passive device.

The EM-6905 provides 12 to 14 dB of sensitivity improvement over a Passive Vertical Rod Antenna in the range of 1 kHz to 10 MHz and 3 to 5 dB or more up to 30 MHz.

Frequency Range (calibrated): 1 kHz – 200 MHz
Dynamic Range: Typically 120 dB, 1 µV/m to 1 V/m
Impedance: Designed to drive a 50-ohm load
Saturation Level: Typically 126dB (µV/m) CW, 105 dB (µ V/m/MHz) Broadband
Sensitivity: From –13 dB (µV/m/Hz) at 10kHz to –40 dB (µV/m/ Hz) at 30 MHz, typical normalized to 1 Hz bandwidth
Power Source: External 12 V.D.C. required
Connector: Type SMA (Jack)

Base Dimensions:
Length: 6.35 cm (2 ½”)
Width: 6.35 cm (2 ½”)
Height: 22.1 cm (8 ¾”) (w/collapsed rod)
Length Antenna Rod: Standard: 152.4 cm (60”)
Weight: .22 kg (.48 lb.)
Mounting: Standard ¼ -20 thread
Optional external battery pack available.

EM-6903 | Right Angle N Connector

The Electro-Metrics EM-6903 Vertical Whip Antenna is a collapsible whip antenna for use with receivers or spectrum analyzers. The antenna collapses to a small length for ease of packing and extends for use at VHF as well as UHF frequencies.

The EM-6903 antenna has a right angle (90 degree) type “BNC” connector.

Frequency Range: UHF & VHF
Input Impedance: Varies with length and frequency 50 Ohms (approx) when adjusted to resonance.

Antenna Type: Vertical Whip
Minimum Length: 20.3 cm (8”)
Maximum Length: 152.4 cm (60”)
Connector: 90 Degree Type N

EM-6899 | 1 kHz – 50 MHz

The EM-6899 passive vertical 41 inch rod antenna intended for receiving or transmitting applications in the 1 kHz to 50 MHz frequency range. Typical applications include measurements of shielding effectiveness to MIL-STD-285 and NSA 65-6 and radiated immunity testing. A band switch optimizes the antenna’s performance for two frequency ranges and it may be used with amplifiers as large as 300 watts continuous output power.

Frequency Range (calibrated): 1 kHz – 50 MHz
Band 1: 1 kHz – 5.0 MHz
Band 2: 5.0 MHz – 50 MHz
(Calibration data valid only for a 41-inch antenna rod.)
Input Impedance: 50 Ohms, nominal
Input Power (maximum, continuous): 300 W
Input Power (peak): 1000 W
Connector: Type N, female

Height (base): 15.2 cm (6”)
Height (base & rod): 66.0 – 119.4 cm (26” – 47”)
Width (base): 7.6 cm (3”)
Depth (base): 7.6 cm (3”)
Weight: 1.36 kg (3.0 lbs.)

EM-6898-2 | Straight N Connector

The Electro-Metrics EM-6898 Vertical Whip Antenna is a collapsible whip antenna for use with receivers or spectrum analyzers. The antenna collapses to a small length for ease of packing and extends for use at VHF as well as UHF frequencies.

The EM-6898 antenna has a right angle (90 degree) type “N” connector. This antenna is also available with a straight type-N connector, model number EM-6898-2.

Input Impedance: Varies with length and frequency 50 Ohms (approx) when adjusted to resonance.

Antenna Type: Vertical Whip
Minimum Length: 20.3 cm (8”)
Maximum Length: 152.4 cm (60”)
Connector: Straight Type N

EM-6898 | Right Angle N Connector

The Electro-Metrics EM-6898 Vertical Whip Antenna is a collapsible whip antenna for use with receivers or spectrum analyzers. The antenna collapses to a small length for ease of packing and extends for use at VHF as well as UHF frequencies. The EM-6898 antenna has a right angle (90 degree) type “N” connector. This antenna is also available with a straight type-N connector, model number EM-6898-2.

Input Impedance: Varies with length and frequency 50 Ohms (approx) when adjusted to resonance.

Antenna Type: Vertical Whip
Minimum Length: 20.3 cm (8”)
Maximum Length: 152.4 cm (60”)
Connector: 90 Degree Type N

EM-6894 | 9 kHz – 30 MHz

Electro-Metrics EM-6894 Manual Vertical (Rod) Antenna performs electric field measurements from 9 kHz to 30 MHz. A ten position rotary switch switches in the appropriate matching network for the frequency selected. The EM-6894 can be used with any equivalent 50-ohm receiver/analyzer designed and calibrated for use in a 50-ohm system.

The EM-6894 is used in conjunction with the following accessories:

• EM-6889 Counterpoise
• EM-6136 Tripod
• EM-1312 Coaxial Cable

The bottom of the base has a 5/8 – 20 threaded receptacle for mounting to the EM- 3136 Tripod.

Applications

The EM-6894 Vertical Antenna uses passive circuits to transform electric field components to voltages between 9 kHz to 30 MHz.

The EM-6894 is used for military EMI specification compliance testing in accordance with MIL-STD-826A, MIL-STD- 461/462, and high voltage power line interference. Calibration data is supplied with each antenna.

NOTE: Though designed as a receiving antenna, the EM 6894 can be used as a transmitting antenna PROVIDED the power applied to the antenna DOES NOT exceed 1W maximum

Frequency Range (calibrated): 9kHz – 30 MHz
(Antenna Factor chart furnished with antenna.)
Input Impedance: Matched to 50 Ohms
Connector: Type TNC, female

Length: 232 mm (9.125”)
Width: 181 mm (7.125”)
Height: 108 mm (4.25”)
Antenna Rod Length: 104.1 cm (41”)
Weight: 3.5 kg (7.5 lbs.)

EM-6879 | 10 kHz – 30 MHz

The EM-6879 Loop Antenna is used for magnetic field measurements over the frequency range of 10 kHz to 30 MHz. The EM-6879 is designed for use with any 50 ohm Receiver System. The antenna has a balanced Faraday shield that reduces its response to electric fields to a vanishingly small amount so that it can produce a practically pure magnetic field response.

Applications

The EM-6879 is suited for use in compliance testing to the various revisions of MIL-STD- 461, CISPR standards, plus other government and commercial standards. The antenna is designed to work into a 50-ohm system and its calibration chart is based on this use. The calibration chart gives values of antenna factor for finding magnetic field strength (H). To find the field strength (H) in dB (uA/m), add the factor from the scale in dB(S/m) to the measured two-terminal input voltage obtained by the receiver in dB(uV).

The EM-6879 Loop Antenna is, electrically, a magnetic dipole and thus having a dipole pattern must be oriented properly for best sensitivity.

Frequency Range (Calibrated): 10 kHz – 30 MHz
Impedance: Calibrated for use in a 50-ohm system
Signal Output Connector: Type BNC, female
Signal Injection Connector: Type BNC, female

Outside Diameter: 635 mm (25″)
Height: 686 mm (27″)
Weight: 0.5 kg (1.1 lbs.)

EM-6876 | 9 kHz – 30 MHz

The Electro-Metrics EM-6876 Active Loop Antenna is used with EMI Receivers and Spectrum Analyzers with 50 ohm input and covers the frequency range of 9 kHz to 30 MHz.

The EM-6876’s internal active circuitry, which is battery powered, equalizes the frequency response of the loop antenna so that the EM-6876 has a relatively constant antenna factor across the 9 kHz to 30 MHz range.

Applications

The EM-6876 is specifically designed to perform VDE 0871 LIMIT B, FCC part 15 and 18 testing plus SAE and other government and commercial standards.

Frequency Range: 9 kHz – 30 MHz
Dynamic Range: 85 dB at 10 kHz
125 dB at 1 MHz
Sensitivity: 50 dB (µV/m) at 10 kHz
-1dB (µA/m) at 10 kHz
10 dB (µV/m) at 1 MHz
-41dB (µA/m) at 1 MHz
(at 200 Hz Bandwidth and average detector function on receiver)
1dB Compression point: 5V/m, 13mA/m
Impedance: 50 Ohms, nominal
Connector: Type BNC

Loop Diameter: 432 mm (17″)
Base Dimensions:
Height: 102 mm (4″)
Width: 232 mm (9.1″)
Depth: 181 mm (7.1″)
Overall Height: 552 mm (21.8″)
Weight: 3.3 kg (7.25 lbs.)

EM-6874 | 20 Hz – 30 MHz

The EM-6874 Loop antenna is nominally used 20 Hz to 30 MHz and is designed for uncalibrated substitution measurements of shielding effectiveness as described by MILSTD-285, IEEE STD 299, and NSA-65-6.

The antenna has a radiating element consisting of a single turn loop 0.3 meter in diameter, making the antenna capable of operating at very high loop currents without damage. In addition, a Type N connector is used which also permits high input levels to be applied to the antenna.

Although uncalibrated, the field strength generated is approximately 2.7 mA/meter/ Ampere. The antenna impedance may be approximated by series combination of a 600 nH and a resistance less than 1 ohm. Its signal handling capability is on the order of 1 kV peak and 40 Amperes RMS.

CAUTION: Since this antenna does not provide a 50 ohm load to the instrument driving it, some amplifiers or generators may be damaged if they are not capable of driving a 600 nH load.

Frequency Range (nominal): 20 Hz – 30 MHz, uncalibrated
Impedance: Approximated by 600 nH in series with <1 ohm
Connector: Type N

Loop Diameter: 321 mm (12.7”)
Base Dimensions:
Length: 102 mm (4”)
Width: 76 mm (3”)
Height: 38 mm (1.5”)
Weight: 230 g (0.5 lbs.)

EM-6873 | 20 Hz – 100 kHz

The EM-6873 Loop Sensor Antenna uses passive circuits to transform magnetic field components between 20 Hz – 100 kHz to an equivalent open circuit two-terminal voltage on the receiving instrument. Use of the conversion Factor Chart, supplied with each antenna, will yield the strength of the magnetic induction field referenced to a uniform field. The loop is electrostatically shielded and therefore is sensitive only to the magnetic component (B-field) of the electromagnetic fields.

Applications

The Loop Sensor Antenna fully meets the magnetic field radiated emission test requirements RE01 and RE101.

The EM-6873 may be used with receivers having input impedance greater than 50 ohm. Calibration into 10 kilohm or greater impedance is provided, as well as the standard 50 ohm calibration.

The EM-6873 is designed to conveniently provide both 7 and 50 cm spacing from the EUT required by RE101.

Frequency Range: 20 Hz – 100 kHz
Conversion Factor: As per MIL-STD-461
Output Connector: Type BNC, female

Boom Length: 49.75 cm (19.59″)
50 cm (19.69″) from coil center
Probe: 60 mm (2.36″)
70 mm (2.76″) from coil center
Size: 146 mm (5.75″) diameter
Mean Diameter of coil: 133 mm (5.24″)
Coil: 36 turns of #7-41 Litz wire
Weight: 795 g (1.75 lbs.)

EM-6871 | 30 Hz – 1 MHz

The EM-6871 Antenna can be used with any 50 ohm /Receiver/Field Strength Meter to obtain magnetic field measurements from 30 Hz to 1 MHz.

The EM-6871 Loop Antenna has a balanced faraday shield that reduces it’s response to electric fields to an insignificantly small amount, which results in practically pure magnetic field measurements.

Applications

The EM-6871 Antenna is particularly well suited for use in meeting Federal Standards because they are designed for maximum sensitivity to the magnetic field in its respective frequency ranges. Also, this loop antenna is suited for use in compliance testing to RE01 and RE101 of MIL-STD-461, RE04 of MIL-STD-461A, FCC/VDE/CISPR mandates plus other government standards.

Frequency Range: 30Hz – 1 MHz
Impedance: Calibrated for use into 50 Ohms
Output Connector: Type BNC
(shielded from electric fields)

Outside Diameter: 533 mm (21″)
Height: 610 mm (24″)
Weight: 0.7 kg (1.5 lbs.)

EM-6870 | 20 Hz – 100 kHz

The EM-6870 Loop Antenna obtains magnetic field measurements from 20 Hz – 100 kHz.

The antenna has a balanced faraday shield that reduces its response to electric fields to an insignificantly small amount, which results in practically pure magnetic field measurements.

Applications

The EM-6870 is suited for use in compliance testing to RE01/RE101 of MIL-STD-461, RE04 of MIL-STD-461A, CISPR recommendations plus other government and federal standards. The antenna is designed to work into a 50-ohm system and must be oriented for best sensitivity.

Frequency Range: 20 Hz-100 kHz
Impedance: Calibrated for use into 50 Ohms
Output Connector: Type BNC (shielded from electric fields)

Outside Diameter: 63.5 cm (25″)
Height: 68.6 cm (27″)
Weight: 500 g (1.1 lbs.)

EM-6869 | 9 kHz – 50 MHz

The Electro-Metrics EM-6869 Active Loop Antenna is used with any receiver or spectrum analyzer with 50 ohm input and covers the frequency range of 9 kHz to 50 MHz.

The internal active circuitry equalizes the frequency response of the EM-6869 loop antenna yielding a relatively constant antenna factor across the 9 kHz to 50 MHz range.

Frequency Range: 9 kHz – 50 MHz
Dynamic Range: 85 dB at 10 kHz
125 dB at 1 MHz
Sensitivity: 50 dB (µV/m) at 10 kHz
-1dB (µA/m) at 10 kHz
10 dB (µV/m) at 1 MHz
-41dB (µA/m) at 1 MHz
(at 200 Hz Bandwidth and average detector function on receiver)
1dB Compression point: 5V/m, 13mA/m
Impedance: 50 Ohms, nominal
Connector: Type SMA (Jack)
External Power Source: 12 V.D.C. (Required)

Length: 33.3 cm (13 1/8”)
Width: 42.39 cm (16 11/16”)
Diameter: 30.5 cm x 40.6 cm (12” x 16”)
Depth: 0.29 cm (¾”)
Weight: 0.70 kg (1.55 lb.)
Optional external battery pack available.

EM-6956-1 | 1 GHz – 2.5 GHz

The Electro-Metrics EM-6956-1 Log Periodic Antenna operates over the 1 to 2.5 GHz frequency to range.

Applications

The EM-6956-1 is capable of operating either as a transmitting or as a receiving antenna over the frequency range of 1 to 2.5 GHz. It’s linearly polarized design permits separate measurement of horizontal and vertical electric field components over its established range.

Length: 260 mm (10.24”)
Width: 203 mm (8”)
Depth: 32 mm (1.25”)
Weight: 454 g (1 lb.)

EM-6956 | 500 MHz – 3 GHz

The Electro-Metrics EM-6956 Log Periodic Antenna operates over the .5-3 GHz frequency range. The broadband frequency capacity of the EM- 6956 eliminates the need for band switching, element extension or external tuning.

Applications

The EM-6956 is capable of operating either as a transmitting or as a receiving antenna over the frequency range of .5-3 GHz. It’s linearly polarized design permits separate measurement of horizontal and vertical electric field components over its established range.

Frequency Range: 500 MHz – 3 GHz
Impedance: 50 ohms, nominal
Average VSWR: <1.3:1
Maximum VSWR: 2.1:1*
Average Beamwidth: E Plane 70°
H Plane 70°
Maximum Continuous Power: 5 W
Connector: Type “N” Female

Length: 260 mm (10.24”)
Width: 203 mm (8”)
Depth: 32 mm (1.25”)
Weight: 454 g (1 lb.)

EM-6952-1 | 1 GHz – 2 GHz

The Electro-Metrics EM-6952-1 Log Periodic Antenna operates over the 1 to 2 GHz frequency range. The EM-6952-1 is capable of operating either as a transmitting or as a receiving antenna over the frequency range of 1 to 2 GHz. Its linearly polarized designed permits separate measurement of horizontal and vertical electric field components over its established range. Enclosed in a weather resistant radome, this antenna is suitable for indoor or outdoor usage.

Frequency Range: 1 GHz – 2 GHz
Impedance: 50 Ohms, nominal
VSWR: < 2.5:1, average Average Beamwidth:
E Plane: 70°
H Plane: 125°
Maximum Continuous Power: 50 W
Connector: Type N, female

Length: 26.04 cm (10.25”)
Width: 20.32 cm (8”)
Depth: 3.125 cm (1.25”)

EM-6952 | 1 GHz – 18 GHz

The Electro-Metrics EM-6952 Log Periodic Antenna operates over the 1-18 GHz frequency range. The broadband frequency capacity of the EM-6952 eliminates the need for band switching, element extension or external tuning.

Applications

The EM-6952 is capable of operating either as a transmitting or as a receiving antenna over the frequency range of 1-18 GHz. It’s linearly polarized designed permits separate measurement of horizontal and vertical electric field components over its established range.

Frequency Range: 1 – 18 GHz
Impedance: 50 Ohms, nominal
Average VSWR: <3:1 Average Beamwidth:
E Plane: 70º
H Plane: 125º
Maximum Continuous Power: 5 W
Connector: Type N, female

Length: 260 mm (10.24”)
Width: 203 mm (8”)
Depth: 32 mm (1.25”)
Weight: 454 g (1 lb.)

EM-6964 | 250 MHz – 26 GHz

The EM-6964 Log Periodic antenna covers the broadest frequency range available in such a rugged and deployable package.

The “Vector II” has its gain and efficiency
peaked to provide directional sensitivity from
250 MHz to 26 GHz. Available in N-type
(limited to 18 GHz), SMA (limited to 23
GHz), and 2.92mm (26 GHz) The antenna is
the ideal hand-held device for locating the
origin of a transmitting source. The nominal
gain of the antenna is 5-7 dBi, with excellent
front to back ratio. The antenna can be used
for receiving, is rugged, and made shock,
vibration and weather resistant.

The antenna can be used with any 50Ω
instrument and can optionally be calibrated in a
50Ω system.

Frequency Range: 250 MHz – 26 GHz
VSWR: < 1.8 Average
                < 3.1 Above 400 MHz

Gain:
5-7dBi over 90% of the range
Impedance: 50 ohms, Nominal
Connector: Type k (2.92 mm), also available in Type N or SMA (frequency range can be limited by connector selection)

Length: 20.5” (520mm)
Width: 12.6” 320mm)
Height: 1.74” (44.5mm) Handle Horizontal

                 6.5” (165mm) Handle Vertical
Weight: 2.14 lbs. (.97 kg)

EM-6944 | 200 MHz – 3 GHz

The EM-6944 offers an exceptional combination of frequency coverage from 200 MHz – 3 GHz and high power handling capability without compromising the consistent performance versus frequency that makes the log periodic antenna so desirable for test applications.

The wide band technology employed in the EM-6944 allows the convenience of a single antenna for tests that would require two or more antennas in the past.

Frequency Range: 200 MHz – 3 GHz
Impedance, nominal: 50 Ohms
Average VSWR: 2.0:1
Power handling: 1000 Watts Continuous
Connector: Type N

Length: 80 cm (31”)
Width: 75 cm (30”)
Height: 12.7 cm (5.0”)
55 cm (22”) with antenna mount
Weight: 1.9 kg (5 lb.)

EM-6942 | 400 MHz – 4 GHz

The Electro-Metrics EM-6942 is a tactical receive and transmit capable antenna.

The antenna operates from 400 MHz to 4000 MHz and can handle up to 150W of RF input power.

The EM-6942 is designed for harsh environmental conditions and its folding elements and 2-section design simplifies transport and storage. The antenna can be mounted on a tripod or any ¼-20 mount and be positioned for horizontal or vertical polarization.

The antenna is available in black, green, tan, white and irridited aluminum.

Frequency Range: 400 MHz – 4 GHz
Impedance: 50 Ohms, Nominal
Gain: 6-10.5 dBi (500 MHz – 3.6 GHz)
Power Handling: 150 Watts
VSWR: < 2:1 Front to Back Ratio: >15 dB*
Connector: Type N female

*Front to back ratio degraded to 10 dB at certain discrete frequencies below 1000 MHz.

Dimensions:
Assembled: 31.5” x 13.25” x 2.5”
80cm x 33.7cm x 6.4cm
Disassembled:
Front Boom: 15” x 5” x 1.5”
38.1cm x 12.7cm x 3.8cm
Rear Boom: 16.5” x 7” x 2.5”
41.9cm x 17.8cm x 6.4cm
Weight: 2.5 lbs, 1.14kg

EM-6939 | 800 MHz – 20 GHz

The Electro-Metrics EM-6939 Log Periodic Antenna operates over the 800 MHz – 20 GHz frequency range.

Applications

The EM-6939 is capable of operating either as a transmitting or as a receiving antenna over the frequency range of 800 MHz – 20 GHz. Its linearly polarized designed permits separate measurement of horizontal and vertical electric field components over its established range.

Frequency Range: 800 MHz – 20 GHz
Impedance: 50 Ohms, nominal
VSWR: < 2:1, average
Gain: 3-6 dBi
Average Beamwidth:
E Plane: 70º
H Plane: 125º
Maximum Continuous Power: 5 watts
Connector: Type SMA (Jack)

Length: 27 cm (10.07”)
Width: 20 cm (8”)
Depth: 1.5 cm (5/8”)
Weight: .05 kg (.11 lb.)
Mounting: Standard ¼-20 thread

EM-6937 | 1.1 GHz – 18 GHz

The Electro-Metrics EM-6937 Log Periodic Antenna operates over the 1.1-18 GHz frequency range.

Applications

The EM-6937 is capable of operating either as a transmitting or as a receiving antenna over the frequency range of 1.1-18 GHz. Its linearly polarized designed permits separate measurement of horizontal and vertical electric field components over its established range.

Frequency Range: 1.1 GHz – 18 GHz
Impedance: 50 Ohms, nominal
VSWR: < 2:1, average Gain: 3-6 dBi
Average Beamwidth: E Plane: 70º
H Plane: 125º
Maximum Continuous Power: 5 W
Connector: Type SMA (Jack) Mechanical

Length: 13.7 cm (5 7/16”)
Width:10.6 cm (4 ½”)
Depth: 1.58 cm (5/8”)
Weight: .05 kg (.11 lb.)
Mounting: Standard ¼-20 thread

EM-6936 | 700 MHz – 1300 MHz

The Electro-Metrics EM-6936 Log Periodic Antenna operates over the 700 MHz – 1300 MHz frequency range.

Applications

The EM-6936 is capable of operating either as a transmitting or as a receiving antenna over the frequency range of 700 MHz – 1300 MHz. Its linearly polarized designed permits separate measurement of horizontal and vertical electric field components over its established range.

Frequency Range: 700 MHz – 1300 MHz
Impedance: 50 Ohms, nominal
VSWR: < 2:1, average Gain: 3-6 dBi
Average Beamwidth:
E Plane: 70º
H Plane: 125º
Maximum Continuous Power: 5 W
Connector: Type SMA (Jack)

Length: 18.4 cm (7 ¼”)
Width: 13.3 cm (5 ¼”)
Depth: 1.58 cm (5/8”)
Weight: 0.1 kg (.22 lb.)
Mounting: Standard ¼-20 thread

EM-6917B-2 | 26 MHz to 3 GHz

The EM-6917B-2 is a hybrid combination of the industry standard biconical and log periodic antennas delivering an unmatched combination of frequency coverage and high power handling capability. Featuring exceptionally broad frequency coverage of 26 MHz to 3 GHz, the EM-6917B-2 eliminates the need for adjustments or switching antennas in most test applications up to 3 GHz, and it does so without compromising power handling capability for transmit applications.

The EM-6917B-2 is supplied with an integral balun which minimizes the effect of cable placement on measurements as seen with some other antennas. Telescopically collapsible biconical elements improve performance at lower frequencies, increasing gain at 26 MHz as high as –20 dB. Each antenna is individually calibrated for field strength measurements from 26 MHz to 3 GHz.

Frequency Range: 26 MHz to 3 GHz
Impedance, nominal: 50 Ohm, nominal
VSWR: <2.0:1, typical
Power: 1000 W, peak
Connector: Type “N”, female

Telescoping Elements
Length: 2.76 m (108.5”) tip to tip
Diameter: 1.52 m (60”)
Weight: 4.5 kg (10 lb)

Log Periodic Section
Length: 1.70 m (67″)
Height: 12.7 cm (5.0″)
Width: 1.02m (40.2″)

EM-6917B-1 | 30 MHz to 3 GHz

The EM-6917B-1, a hybrid combination of the industry standard biconical and log periodic antennas, delivers an unmatched combination of frequency coverage and high power handling capability. Featuring exceptionally broad frequency coverage of 26 MHz to 3 GHz, the EM-6917B-1 eliminates the need for adjustments or switching antennas in most test applications up to 3 GHz, and it does so without compromising power handling capability for transmit applications.

The EM-6917B-1 is supplied with an integral balun that minimizes the effect of cable placement on measurements as seen with some other antennas. Telescopically collapsible biconical elements are available for improved performance at lower frequencies. Each antenna is individually calibrated for field strength measurements from 26 MHz to 3 GHz.

Frequency Range: 30 MHz to 3 GHz
Impedance, nominal: 50 Ohm, nominal
VSWR: <2.0:1, typical
Power: 1000 W, peak
Connector: Type “N”, female

Log Periodic Section

Length: 1.53 M (60.2″)
Height: 12.7 cm (5.0″)
Width: 1.02m (40.2″)

Fixed Elements

Length: 1.98 m (78.0″) maximum
Diameter: 2.92 m (115.0″) maximum
Height: 1.58m (62″)

EM-7022 | 4 GHz – 10 GHz

Electro-Metrics offers three horn antennas, each covering an octave bandwidth from 1 to 10 GHz. The horns are individually calibrated and can be used for either receiving or transmitting applications. They are especially suited to radiated immunity testing and can be used to generate fields in excess of 200 Volts/meter. All three horns feature type “N” connectors and exhibit low VSWR to ensure compatibility with power amplifiers.

Frequency Range (calibrated): 4 GHz – 10 GHz
Power Handling: 200 Watts
Output Impedance: 50 Ohms, nominal
VSWR: 2.0:1
Gain: 12 – 17 dB, typical
Connector: Type N, female

Length: 12.7 cm (5.0”)
Width: 8.38 cm (3.3”)
Height: 10.9 cm (4.3”)
Weight: .54 kg (1.2 lbs.)

EM-7021 | 2 GHz – 5 GHz

Electro-Metrics offers three horn antennas, each covering an octave bandwidth from 1 to 10 GHz. The horns are individually calibrated and can be used for either receiving or transmitting applications. They are especially suited to radiated immunity testing and can be used to generate fields in excess of 200 Volts/meter. All three horns feature type “N” connectors and exhibit low VSWR to ensure compatibility with power amplifiers.

Frequency Range (calibrated): 2 GHz –5 GHz
Power Handling: 200 Watts
Output Impedance: 50 Ohms, nominal
VSWR: 2.0:1
Gain: 12 – 17 dB, typical
Connector: Type N, female

Length: 21.6 cm (8.5”)
Width: 16 cm (6.3”)
Height: 20.3 cm (8.0”)
Weight: 1.0 kg (2.2 lbs.)

EM-7020 | 1 GHz – 2.5 GHz

Electro-Metrics offers three horn antennas, each covering an octave bandwidth from 1 to 10 GHz. The horns are individually calibrated and can be used for either receiving or transmitting applications. They are especially suited to radiated immunity testing and can be used to generate fields in excess of 200 Volts/meter. All three horns feature type “N” connectors and exhibit low VSWR to ensure compatibility with power amplifiers.

Frequency Range (calibrated): 1 GHz – 2.5 GHz
Power Handling: 200 Watts
Output Impedance: 50 Ohms, nominal
VSWR: 2.0:1
Gain: 12 – 17 dB, typical
Connector: Type N, female

Length: 44.5 cm (17.5”)
Width: 30.2 cm (11.9”)
Height: 40.3 cm (15.9”)
Weight: 6.0 kg (13.0 lbs.)

EM-6969 | 6 GHz – 18 GHz

The EM-6969 Double Ridged Guide Antenna is a linearly polarized broadband antenna for specification compliance testing.

The versatile EM-6969 is constructed of rugged aluminum, which makes it excellent for use under severe field conditions and the size makes it suitable for use in the limited space of a shielded enclosure.

Applications

The EM-6969 is a linearly polarized antenna capable of operating as either a transmitting or receiving antenna.

The EM-6969 exhibits highly efficient performance characteristics for a broadband antenna. It is also well suited for radiated susceptibility testing in the microwave range and general transmitting and receiving applications.

Frequency Range: 6.0 GHz – 18.0 GHz
VSWR: 2.0:1 Max
Gain: 13 – 20 dBi
Beamwidth: 18° x 18 ° nominal at midband
Polarization: Linear
Connector: SMA Female

Size: 3.85 “ x 2.8” 7.15” (W x H x L)
Weight: 2 Lbs

EM-6968 | 2.5 GHz – 7.5 GHz

The EM-6968 Double Ridged Guide Antenna is a linearly polarized broadband antenna for specification compliance testing.

The versatile EM-6968 is constructed of rugged aluminum, which makes it excellent for use under severe field conditions and the size makes it suitable for use in the limited space of a shielded enclosure.

Applications

The EM-6968 is a linearly polarized antenna capable of operating as either a transmitting or receiving antenna.

Exhibiting highly efficient performance characteristics for a broadband antenna, the antenna is ideal for measurements to meet MILSTD-461/462 EMI specifications as well as other standards. It is also well suited for radiated susceptibility testing in the microwave range and general transmitting and receiving applications.

Frequency Range: 2.5 GHz – 7.5 GHz
VSWR: 1.7:1 Max
Gain: 9.5 – 16.0 dBi
Beamwidth: 30° x 30° nominal
at midband
Polarization: Linear
Connector: SMA Female

Size: 5.5” x 4.1” x 7.25” W x H x L)
Weight: 2.5 Lbs

EM-6965 | 18 GHz – 40 GHz

The Electro-Metrics EM-6965 Standard Gain Horn Antenna Set, which includes EM-6966 and EM-6967, was designed specifically for EMI measurements and specification compliance testing in the 18 – 40 GHz range.

The EM-6965 set is used in conjunction with Electro-Metrics EM-2135 Interference Analyzer. The EM-6965 set can also be used in ElectroMetrics Automated RFI/EMC Systems, FSS Series or their Calculator Controlled EMI Systems, CCS Series.

Applications

The EM-6965 small size makes it an excellent antenna for use in a screen room where space is limited and where proximity effects must be minimized.

The EM-6965 Standard Gain Horn Set is particularly suited for military EMI specification compliance procedures such as MIL-STD 461/462 in the microwave frequency range.

Note: EM-6965 Standard Gain Horn Antennas can also be purchased separately as EM-6966 or EM-6967.

Frequency Range (calibrated): 18 GHz – 40 GHz
EM-6966: 18 GHz – 26.5 GHz
EM-6967: 26.5 GHz – 40 GHz
Average VSWR: 1.15 maximum
Beam Width: 20 to 30 degrees in both planes
Waveguide Size:
EM-6966: WR-42
EM-6967: WR-28
Gain: 15 dB at low frequency end
18 dB at high frequency end

EM-6966
Length: 69.6 mm (2.74″)
Width: 28.6 mm (1.126″)
Height: 38.1 mm (1.50″)
EM-6967
Length: 57.2 mm (2.25″)
Width: 19.1 mm (0.75″)
Height: 25.4 mm (1.00″)

EM-6963 | 18 GHz – 40 GHz

Electro-Metrics model EM-6963 is a linearly polarized, dual ridge horn antenna covering the frequency range of 18-40 GHz.

Model EM-6963 can be individually calibrated for use in EMI/EMC compliance measurements as well as for general purpose measurement antennas over its specified frequency range.

The small size and lightweight construction of the EM-6963 make it portable and easy to use. The antenna is supplied with a mounting bracket allowing the antenna to be oriented in either the vertical or horizontal plane. The mounting bracket is configured for a standard ¼-20 tripod stud.

Frequency Range: 18 GHz – 40 GHz
Impedance: 50 Ohms (nominal)
VSWR (average): <2.2:1
Gain (average): 10.07 dB
Max input power: 50 W
Average 3 dB Beamwidth:
E Plane: 50º
H Plane: 45º
Connector: “K” (female)

Width: 10.1 cm (4”)
Length: 8.9 cm (3.5”)
Height: 6.6 cm (2.6”)
Weight: .19 kg (.41 lb.)

EM-6961 | 0.9 GHz – 18 GHz

The EM-6961 Double Ridged Guide Antenna is a linearly polarized broadband antenna designed and built specifically for EMI measurements and specification compliance testing.

The versatile EM-6961 is constructed of rugged aluminum, which makes it excellent for use under severe field conditions and the size makes it suitable for use in the limited space of a shielded enclosure.

Applications

The EM-6961 is a linearly polarized antenna capable of operating as either a transmitting or receiving antenna.

Exhibiting highly efficient performance characteristics for a broadband antenna, the EM-6961 is ideal for measurements to meet MIL-STD-461/462 EMI specifications. It is also well suited for radiated susceptibility testing in the microwave range and general transmitting and receiving applications. Antenna factor chart supplied with each antenna.

Frequency Range (calibrated): 0.9 GHz – 18 GHz
Impedance: 50 Ohms nominal
Average VSWR: <1.5:1
Average Power Gain: 10.7 dB
Average Beamwidth:
E Plane: 53º
H Plane: 48º
Power for 200 V/m @ 10 GHz (typical): 90 W
Output Connector: Type N female

Length: 280 mm (11”)
(includes Tripod Mount)
Width: 244 mm (9.6”)
Height: 157 mm (6.2”)
Weight: 1.8 kg (4 lbs.)

EM-6960 | 200 MHz – 2 GHz

The EM-6960 operates over the 200 MHz to 2 GHz frequency range and is characterized by relatively high gain and low VSWR over this wide range.

Frequency Range: 200 MHz – 2 GHz
Impedance: 50 Ohms, nominal
Average VSWR: <1.5:1
Average Power Gain: 7.8 dB
Rated Power: 1000 W
Average 3 dB Beamwidth:
E Plane: 50º
H Plane: 45º
Connector: Type N, female

Width: 965 mm (38”)
Height: 686 mm (27”)
Depth: 914 mm (36”)

EM-6119 | 1.7 GHz – 1.9 GHz

The EM-6119 Pyramidal Horn Antenna is specifically designed for operation in the PCS and DCS bands (1700 MHz to 1900 MHz). Over this frequency range this antenna exhibits a typical gain of 10 dBi, and provides an excellent match with typical VSWR of <1.2:1. This antenna is useful in transmitting as well as receiving signals in this band.

Fabricated from welded aluminum panels, this antenna is light in weight, but also is rugged enough to withstand the less than gentle treatment often encountered in the field.

Frequency: 1.7 GHz – 1.9 GHz
Gain: 10 dBi, nominal
Bandwidth: 200 MHz
VSWR: 1.4:1 worst case
1.2 typical
E Plane Beam Width: 45º
H Plane Beam Width: 52º
Impedance: 50 Ohms
Maximum Power: 200 W
Connector: Type N Jack

Length: 20.83 cm (8.2”)
Width: 14.22 cm (5.6”)
Height: 15.24 cm (6”)
Weight: 0.6 kg (1.3 lbs.)

EM-6105 | 10 kHz – 2 GHz

The EM-6105 is a broad band collinear array allowing very wide Omni-Directional frequency coverage in a single package. Below approximately 100 MHz, the EM-6105 acts as an active vertical rod which offers 10 to 12 dB more signal handling capability than competitive antennas (overload field strength: 2 V/meter) which greatly reduces intermodulation generated signals in a typical read world RF environment. In the congested spectrum above 100 MHz the antenna is passive and contributes no intermodulation products so the overload point is determined solely by the receiving instrument. This immunity to overload can often make the difference between useful signal output and an indecipherable jumble of spurious products and is accomplished without compromising sensitivity. The antenna collapses for convenient storage and transport. The EM-6105 is supplied with an EM-6106 Battery Pack.

Frequency Range (calibrated): 10 kHz – 2 GHz
Impedance: 50 Ohms, nominal
Output Connector: Type N, male
Overload: 2 V/m below 50 MHz
(+5 dBm at output connector)
Power Source: 15 VDC supplied by external EM-6106 Battery Pack/Charger Module
Battery Life: 8 hours, nominal
Polarization: Vertical

Height: W/o Upper Rod: 57.2 cm (22.5”)
W/ Upper Rod:
Fully Collapsed: 82.6 cm (32.5”)
Fully Extended: ≈203.2 cm (≈80”)
Lower Radial Elements: 40.6 cm (16”)
Upper Antenna Rod Length:
Fully Collapsed: 25.4 cm (10”)
Fully Extended: ≈144.8 cm (≈57”)
Lower Radial Elements: 40.6 cm (16”)
Diameter:
Stowed Configuration: 11.4 cm (4.5”)
Deployed Configuration: 45.7 cm (18”)
Antenna Disk: 32 cm (12.6”) (Counterpoise)
Weight: 2 kg (4.5 lbs.)

EM-6104-1 | 20 MHz-18 GHz

The EM-6104-1 is an omni-directional, dual band, hybrid antenna covering 20 MHz-18 GHz. The antenna features wide frequency coverage making it an excellent choice for a variety of applications such as general purpose measurements as well as wideband security applications. This lightweight antenna is ideal for deployable applications that require wideband coverage in a very small footprint. The antenna’s elements collapse for convenient storage and transport. The antenna is configured to mount on a standard ¼-20 tripod stud. The EM-6104-1 Omni-Directional antenna is supplied with an EM-6089 Battery Pack.

Frequency Range:
Upper Connector: 1000-18000 MHz
Lower Connector: 20-1000 MHz
Impedance: 50 Ohms, nominal
Output Connector: SMA (Jack) x 2
External Power Source (Required): 12 V.D.C. 60 mA
Gain: 20-1000 MHz
– 15 dBi @20 MHz
Increasing to +20 dBi @100 MHz 23 dBi Typical (100-1000 MHz)
1000-18000 MHz
-2 to +5 dBi
SWR (avg): <2.0:1
Mounting: ¼-20 thread

Length: 30.4 cm (12”)
Diameter: 25.4 cm (10”)
Weight: .8 kg (1.8 lb.)

EM-6924 | 28 MHz – 1GHz

The EM-6924 tuned dipole set is the reference antenna for FCC and VDE measurements in the 28-1000 MHz range. Results from other linearly polarized antennas in the certifications process must be correlated with the results obtained from a tuned dipole.

Virtually identical to the actual antennas used by the FCC, the EM-6924 dipole set is ideal for EMI testing and site attenuation measurements in accordance with both FCC part 15 and 18, as well as ANSI C63.4, VDE 0871 and 0875, and other EMI specifications.

Frequency Range (calibrated): 28-1000 MHz
EM-6923: 28 – 70 MHz
EM-6925: 70 – 175 MHz
EM-6926: 175 – 400MHz
EM-6927: 400 – 1000 MHz
Input Impedance: 50 Ohms
Connector: Type BNC (Type N optional)
VSWR: Typically less than 1.6:1
Balun Loss: 0.5 dB maximum
Maximum Continuous Power: 20 W

EM-6923

Length: 45.7 cm (18.0”)
Head Width: 7.62 cm (3.0”)
Rod Diameter: 11 mm (0.43”)
Balun Dimensions:
Width: 12.7 cm (5.0”)
Height: 6.35 cm (2.5”)
Depth: 9.53 cm (3.75”)
Weight: 682 g (1.5 lbs)

EM-6925

Length: 50.17 cm (19.75”)
Head Width: 7.62 cm (3.0”)
Rod Diameter: 11 mm (0.43”)
Weight: 341 g (12 oz)

EM-6926

Length: 47.63 cm (18.75”)
Head Width: 7.62 cm (3.0”)
Rod Diameter: 11 mm (0.43”)
Weight: 341 g (12 oz)

EM-697

Length: 46.63 cm (18.25”)
Rod Diameter: 5.2 mm (0.21”)
Weight: 227 g (8 oz)

EM-6917C-1 | 26 MHz – 1 GHz

The EM-6917C-1, a hybrid combination of the industry standard biconical and log periodic antennas, delivers an unmatched combination of frequency coverage and high power handling capability. Featuring exceptionally broad frequency coverage of 26 MHz to 1 GHz, the EM-6917C-1 eliminates the need for adjustments or switching antennas in most test applications up to 1 GHz, and it does so without compromising power handling capability for transmit applications.

The EM-6917C-1 can be operated as either a transmitting or receiving antenna over its entire frequency range. This may be the only antenna you need to perform many commercial EMI emissions tests, and its integral balun minimizes the effect of cable placement on measurements seen with some other antennas. In additional it’s transmit capability allows generation of the necessary fields for IEC 1000-4-3 (IEC 801.3) radiated immunity testing from 80 MHz to 1 GHz.

Frequency Range: 26 MHz – 1 GHz
Impedance, nominal: 50 Ohms, nominal
VSWR: <2.0:1, typical
Power: 1000 W, peak
Connector: Type N, female

Log Periodic Section:
Length: 1.45 m (57.25”)
Width: 1.02 m (40.2”)
Height: 12.7 cm (5.0”)
55 cm (22”) with antenna mount
Weight: 4.5 kg (10 lb.)

Biconical Elements:
Length: 1.30 m (50.0”) Tip –to-tip
Diameter: 520 mm (20.5”) maximum

EM-6913 | 20 MHz – 300 MHz

The Electro-Metrics EM-6913 can be used for generating high intensity fields as required for EMC immunity testing 20 MHz to 300 MHz.

The broadband frequency characteristics of the balun provide an optimum impedance match to the biconical elements over more than a decade of frequencies. The heavy-duty construction of the bifilar wound balun helps prevent overload or breakdown under high power operation. The balun enclosure protects the user from accidental burns while allowing for cooling through natural convection.

Frequency Range: 20 MHz – 300 MHz
Input Impedance:
Calibrated in a 50-ohm system
Power Input Capability:
1 kW long term average power
2 kW short duration average power
Connector Type: Type N, female
Average Balun VSWR: 2.5:1 or less

Assembled Dimensions:
Length: 133.35 cm (52.5″) tip-to-tip
Diameter: 52.1 cm (20.5″) maximum
Weight: 3.2 kg (7 lbs)

EM-6912A | 30 Mhz – 300 MHz

A balun, feedline, and element cage give the Electro-Metrics EM-6912A response curves that are almost linear, making it ideal for swept measurements. An added benefit is that the EM-6912A has an improved BALUN design, which makes it insensitive to changes of orientation while vertically polarized. Readings obtained will be the same no matter which element is closest to the ground plane, eliminating a potential source of measurement error.

Applications

The EM-6912A Biconical Antenna operates over the 30-300 MHz frequency range. The antenna is ideally suited for use in FCC, SAE, and MIL- STD radiated emissions testing. The EM-6912A broadband frequency capability eliminates the need for band switching, element extension, or external tuning when used for electromagnetic ambient surveys or spectrum signature measurements. The compact size of the EM- 6912A is advantageous for use in anechoic chambers and shielded enclosures.

Frequency Range: 30-300MHz
VSWR:
Average: 1.4:1 with 6 dB attenuator
Maximum: 1:8:1 with 6 dB attenuator
Max. Cont. Power: 0.5 W
Peak Power: 1.0 W
Input Impedance: 50 Ohms
Output Connector: BNC, female

Length: 129.8 cm (51″) tip-to-tip
Diameter: 50.8 cm (20″)
Depth: 54 cm (21.5″) including balun
Weight: 2.7 kg (6 lbs.)