20 Watts PEP, 30-512 MHz, Tx/Rx Booster Amplifier with Remote Keyline


The Model AR-20H is a portable, lightweight, fully automatic band-switching RF booster amplifier for multiband VHF/UHF Tactical Radio equipment employing legacy, proprietary and emerging waveforms.  The AR-20H produces 20 Watts from a nominal 2 Watts CW/PEP radio input and covers the frequency band of 30-512 MHz.  The unit has a DC voltage range of 18 to 36 VDC vehicle power.  The unit is designed for use with the latest modern networking formats including ANW2C and SRW.  The AR-20H also includes voltage spike suppression, over temperature protection, RF sensing T/R switching, harmonic filters, lightning protection, and protection against antenna mismatch.  The AR-20H has a typical 4 dB Noise figure and approximately 6 dB gain Low Noise Amplifier in the receive path.  The AR-20H was tested to meet specific portions of MIL-STD-461F, MIL-STD-464C, MIL-STD-704F MIL-STD-810G and RTCA/DO-160G. The amplifier is comprised of rugged 4-piece aluminium case.

Frequency Range 30-512 MHz
Power Output PEP 20 W, + 2 dB/- 1 dB typical. CW or PEP AM Modulation; 1 kHz DOM 90%, < 14% distortion (< 10% distortion typical)
Input Power Range 1.5-3 W CW or PEP for full power output. Up to 8 W without damage
RF Keying Sensitivity 0.2 W typical
T/R Switchover Time < 25 μS typical
Noise Figure 4 dB typical
LNA Gain 6 dB typical
Modulation Amplifies all legacy and modern complex tactical communications waveforms
Input/Output Impedance 50 Ω nominal
Input VSWR 1.5:1 nominal
Harmonics Better than – 60 dBc typical
Spurious Outputs Better than – 70 dBc typical
Power Requirement 18-36 VDC
Current < 3.75 A Amps @ 24 V typical
Remote Keyline Open drain for RX, 6-pin Keyline Connector