PRO-2028 (200-0403) Specifications Faxback Doc. # 8281 Frequency Coverage: VHF-Lo...........................................29-50 MHz (in 5 kHz steps) Ham..............................................50-54 MHz (in 5 kHz steps) Aircraft................................108-136.975 MHz (in 12.5 kHz steps) Government.....................................137-144 MHz (in 5 kHz steps) Ham............................................144-148 MHz (in 5 kHz steps) VHF-Hi.........................................148-174 MHz (in 5 kHz steps) Ham/Government..............................406-450 MHz (in 12.5 kHz steps) UHF-Lo......................................450-470 MHz (in 12.5 kHz steps) UHF-Hi (TV).................................470-512 MHz (in 12.5 kHz steps) Channels of Operation...........................Any 50 channels in any band ................................................................combinations Sensitivity: ............................AM:20 dB Signal-to-Noise Ratio at 60% modulation ......................................................108-136.975 MHz.2.0 uV .............................................FM: 20 dB Signal-to-Noise Ratio ..........................................................at 3 kHz deviation ......................................................29-54.MHz........0.5uV .....................................................137-174 MHz.......0.7uV .....................................................406-512 MHz.......1.0uV Scanning Rate..........................................14 channels/step/sec Delay Time........................................................2 seconds IF Frequencies........................................10.85 MHz and 450 kHz Squelch Sensitivity ............................Threshold: Less than 1.0 uV ........................................................Tight: (S+N)/N 25 dB Antenna Impedance...................................................50 ohms Audio Power...............................................1.3 watts maximum Built-in Speaker............................2 1/4" (57mm).8ohm,dynamic type Power Requirements....................................120 V +/-10% AC 60 Hz ..............................................with AC Adapter)...12 V DC 10% Current Drain.........................................DC 140 mA (squelched) .........................................DC 290 mA (full volume unsquelched) Dimensions.............................................2.21" (56mm) x 7.07" ...............................................(180 mm) x 9.38" (238 mm) HWD Weight.......................................................2.2(lbs (1 kg) (RLR-10/04/93) .