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25/50 Watts CW, 30-512 MHz, Multiband, Automatic Band-Switching/LNA with Co-Site Filter


The Model AR-50RC 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 amplifier covers the frequency band of 30-512 MHz using six high speed auto switching filters to assure harmonic suppression and is SINCGARS, HAVEQUICK, and ECCM compatible.  The amplifier includes power supply Voltage Spike Suppression, a DC/DC converter 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 2-piece aluminium case.  Optional interface coaxial cables and shock mounting plate are available.

Frequency Range 30-512 MHz
Power Output LOS: 25 Watts CW nominal; 25 W PEP with 70% AM modulation; < 10% distortion typical
SATCOM (290-320 MHz): 50 Watts
Input Power Range CW < 5 Watts CW typical for 25 W LOS and 50 W SATCOM Output; Input Protection for up to 20 W CW
Input Power Range AM LOS: 1.5 Watts average (3-5 W PEP) for 25 W PEP output at 70% modulation
SATCOM: 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,
HAVEQUICK, and ECCM 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 35 dB typical
Power Requirement 12-35.5 VDC filtered and transient protected for 12 or 24 volt vehicle systems or dual xx90 batteries
Current < 7.5 Amps @ 24 V typical