Specifications Operating Frequencies: Block 21 537.600 – 563.100 Block 22 563.200 – 588.700 Block 23 588.800 – 607.900, 614.100 – 614.300 Block 24 614.400 – 639.900 Block 25 640.000 – 665.500 Block 26 665.600 – 691.100 Block 27 691.200 – 716.700 Block 28 716.800 – 742.300 Block 29 742.400 – 767.900 Frequencies (Channels per block): 256 Channel Spacing: 100 kHz (0.1 MHz) Spurious & Harmonic Suppression: 1 uW at freq. above 1 GHz, 4 nW at freq. below 1 GHz Frequency Stability: .002% (20 ppm) @ 25 C Temperature Stability: .005% (50 ppm) from -30 C to 50 C Channel Selection: Momentary pushbutton switches, TUNE Up and Down Pilot Tone: 29.997 kHz Modulation: FM, 20 kHz deviation Audio Response: 100 Hz to 10 kHz, 1 dB, -3dB (system response) Audio Compressor: 2 to 1 RF Power Output: 250 mw (nominal) Output Impedance: 50 ohms Audio Input Levels: 4 dBu, -6 dBu, and -40 dBu, dry inputs, /-50Vdc max, rear panel selectable for Line, Mic, RTS 1, RTS 2, and Clear Comm Audio Input Config: Balanced and Unbalanced, rear panel selectable for Line, Mic. RTS 1, RTS 2, and Clear Comm Audio Input Impedance: Greater than 2 K balanced, greater than 1 K unbalanced at any gain setting Gain Control Range: 43 dB, Semi-log Rotary control Audio Input Jack: Standard XLR female connector Input Power: 12 to 14 VDC typical, 250 ma. max.; Max. Input Range 11 to 18 VDC Power Input Jack: Coax type, locking LZR RL26AE Indicators: LED for -20 dB modulation LED for 0 dB modulation 4 Digit 7-segment LED displays for frequency and power on with adjustable brightness Front panel controls: Audio Level rotary knob Power OFF-TUNE-XMIT, 3 position slide switch TUNE up momentary pushbutton switch TUNE down momentary pushbutton switch Rear panel controls: Mode Select, 4 section DIP switch SIZE: Including Connectors: 5.25″ x 3.25″ x 1.25″ 133.4 x 82.6 x 31.8 mm WEIGHT: 0.56 lb (0.3 kg)
