AR-50S
The Model AR-50S is a portable, lightweight, fully automatic band-switching RF booster amplifier for multiband VHF Tactical Radio equipment supporting legacy, proprietary and emerging waveforms. The amplifier is a sub-banded version of the JITC certified AR-50 multiband product and covers the frequency band of 30-88 MHz. High speed auto switching filters assure harmonic suppression and SINCGARS compatibility. 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), automatically switched harmonic filter bands (DAMA capable). Protections against antenna mismatch, over-temperature and accidental polarity reversal are provided. The amplifier is comprised of a rugged aluminium case. Optional interface coaxial cables and shock mounting plate are available.
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The specifications listed below apply to the AR-50S family of amplifiers unless otherwise noted. For ordering, see datasheet for detailed information for specific model names.
| 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 | Minimum input power to guarantee RX to TX Switch < 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 |
| Power Requirement | 12-36 VDC filtered and transient protected for 12 or 24 volt vehicle systems or dual xx90 batteries |
| Current | < 7.5 Amps @ 24 V typical |