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R-442/VRC Specifications: | |
Frequency range | 30.00 to 75.95 MHz |
Channel spacing | 50 kHz |
Number of Channels | 920 Channels |
Mode of Operation | Voice frequency modulated (FM) |
Receiver stability | Crystal controlled, + 3.5 kHz of nominal frequency |
Receiver Sensitivity | 0.5 ?V for 10 dB (S+N+D)/(N+D) for 8.0 kHz deviation |
Circuit | Super-heterodyne single conversion |
Image Rejection | Greater than 85 dB |
IF Bandwidth | 32 kHz minimum @ 6 dB. 85 kHz maximum @ 60 dB |
Squelch | 150-Hz tone-operated or noise-operated, with RF signal having 10 dB (S+N+D)/(N+D) ratio |
Limiting | Less than 1 dB change in audio output for RF input from 1 ?V to 100,000 ?V |
Distortion | Less than 8% from 500 to 3000 Hertz |
Audio Output | 500 mW into 600-Ohm speaker 150 mW into 600-Ohm headphone |
Volume Control | Adjustable from less than 0.25 mW to 1.0 W maximum |
Operating Temperature | -40?C to +65?C (-40?F to +14?F) |
Power Requirement | 24-28 VDC @0.75A |
Dimensions | 6H x 5W x 13D. (15.2 cm x 12.7 cm x 33 cm). |
Weight | 18.5 lbs. (8.4 kg). |