The EM-4211 Broadband Amplifier is a very wide band, low noise, high gain preamplifier. This device will improve the sensitivity of nearly any receiving device. It is useful in improving the Noise Figure of typical low gain antenna and receiver combinations. This amplifier can be used with any 50 ohm passive transducer. The small size and light weight of this device lends it to be easily positioned very near the receive device, where it can provide the greatest improvement in signal acquisition capability.

Requires 12V DC power source.



Frequency Range: 2 GHz – 18 GHz
Noise Figure: 3.5 dB (typical)
Gain: 21 dB (typical)
Flatness: ± 1.5 dB (typical)
VSWR: 2.0:1:1 (maximum)
1 dB compression point: +13 dBm @ 1dB compression
Power Consumption: 150 mA @ 12 VDC maximum
Connector: SMA


Height: 1.5”
Width: 1.5”
Length (incl. connectors): 3.6”
Weight: 4.2 oz./57 grams

Product Sheet