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50 Watts PEP, 30-512 MHz / 75 Watts PEP 220-324 MHz, Tx/Rx Booster Amplifier


The Model AR-50-SAT75 is a portable, lightweight, fully automatic band-switching RF booster amplifier for multi-band VHF/UHF Tactical Radio equipment employing legacy, proprietary and emerging waveforms. The amplifier covers the frequency band of 30-512 MHz using six high speed auto switching filters to assure harmonic suppression and is SINCGARS, HAVEQUICK, HPW, DAMA, IW, and ANW2 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), six automatically switched harmonic filter bands (DAMA capable), and protection against antenna mismatch and over-temperature. Protection against accidental polarity reversal is provided. The amplifier comprises a rugged 3-piece aluminium case. Optional interface coaxial cables and shock mounting plate are available.

Frequency Range 30-512 MHz
Power Output LOS: 50 Watts, 30 – 512 MHz [50 W PEP with 70% AM modulation] typical
SATCOM: 75 Watts, 220 – 324 MHz typical
Input Power Range CW
[Input protection for up to 20 W]
LOS: 4 – 6 Watts input for 50 Watts output typical
SATCOM: 7 – 8 Watts input for 75 Watts output typical
Input Power Range AM 1.5 Watts average (3-5 W PEP) for 50 W PEP output at 70% modulation
RF Keying Sensitivity <1 Watt typical
T/R & Filter Switchover Time SINCGARS, HAVEQUICK, HPW, IW, ANW2 and DAMA 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 and
HAVEQUICK modes – No filter gaps
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 18-35.5 VDC filtered and transient protected for 24 volt vehicle systems or dual xx90 batteries
Current < 8.5 Amps @ 24 V typical (75 W SATCOM)