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50 Watts PEP, 30-88MHz, Tx/Rx Booster Amplifier


The Model AR-50SE is a fully automatic band-switching RF booster amplifier for multi-band Tactical Radio equipment employing legacy, proprietary and emerging waveforms. The amplifier which is a sub-banded version of our JITC certified AR-50 multiband product covers the frequency band of 30 – 88 MHz using high speed auto switching filters to assure harmonic suppression and is SINCGARS compatible. The amplifier includes power supply Voltage Spike Suppression, a DC/DC convertor for wide DC input range, RF sensing, T/R switching, Automatic Level Control (ALC), three automatically switched harmonic filter bands, and protection against antenna mismatch and over-temperature. Protection against accidental polarity reversal is provided. The amplifier comprises a rugged 3-piece aluminium case.

Frequency Range 30-88 MHz
Power Output 50 Watts CW nominal; 50 W PEP with 80% AM modulation; < 10% distortion typical
Input Power Range CW: 1-20 W < 5 Watts CW typical for 50 Watts Output; Input Protection for up to 20 W CW
Input Power Range AM 1.5 Watt average (3-5 W PEP) for 50 W PEP output at 80% modulation
RF Keying Sensitivity <1 Watt typical
T/R & Filter Switchover Time SINCGARS, legacy and modern modulations capable
Insertion Loss Bypass Mode 1.0 dB typical
Insertion Loss Active RX 1.5 dB nominal
Modulation AM, FM, or PM, and Tactical communications waveforms
Duty Cycle Tactical operations
Input/Output Impedance 50 Ω nominal
Input VSWR 1.5:1 nominal
Harmonics Better than – 60 dBc typical. FULL high speed filter switching avoids interference in SINCGARS
Spurious Outputs Better than – 70 dBc
Rx LNA Gain 12 dB typical
Rx LNA Noise Figure 2 dB typical
Rx Co-Site Filter Band pass frequency 239-273 MHz, Out of band rejection 55 dB typical
Power Requirement 12-33 VDC MIL-STD-461E and 1275
Current < 7.5 Amps @ 24 V typical