EM-6856 Antenna, Ultra-Wideband, Passive, Omni-Directional | 20 MHz – 43.5 GHz

The Electro-Metrics EM-6856 is an Ultra Wideband Passive Antenna with Omni-Directional radiation patterns covering the entire frequency range of 20MHz-43.5GHz. As the successor to the EM-6857, the EM6856 features a size reduction of 38% and weight reduction of 36% over its predecessor while maintaining a nominal gain of > 2dBi across 90% of its operational frequency range. Environmentally hardened with a rugged build and stable performance, this antenna is excellent for SIGINT and related applications.

Electrical

Frequency Range: 20 MHz – 43.5 GHz

Polarization: Linear, Vertical

VSWR:

  • Average 2:1 above 400 MHz
  • 3dB Beamwidth: 360˚ Azimuth (Omni-Directional)
  • 45˚ Average Elevation (70˚ – 30˚ Typical)

Impedance: 50Ω, Nominal

Gain:

  • 150MHz-40GHz Nominal 2dBi
  • @100MHz Nominal -12dBi
  • @20MHz Nominal -44dBi

Connector:

  • Type ‘K’ (EM-6856 | 20MHz-40GHz)
  • SMA (EM-6856-2 | 20MHz-26GHz)
  • Type ‘N’ (EM-6856-1 | 20MHz-18GHz)

Mechanical

Dimensions:

  • Overall Length: 29 cm (11”)
  • Diameter: 11.5 cm (4.5”)
  • Weight: 0.86 kg (1.9 lbs.)

Mounting Options Available:

  • EM-1607 Tripod Mount (included)
  • EM-1608 Right Angle Wall Mount
  • EM-1108 Rugged Roof Rack Mount
  • EM-1109 Pole Mount

Color Options:

  • Black (default)
  • Custom colors available upon request

Data Sheets

Download Data Sheet