54SPECIFICATIONS AND OPTIONS11 SpecificationsDD General• Frequency coverage : TX 156.000–161.450 MHzRX 156.000–163.425 MHz• Mode : FM (16K0G3E), DSC (16K0G2B)• Current drain (at 13.8 V) : TX high (25 W) 5.5 AMax. audio 1.5 A• Power supply requirement : 13.8 V DC (10.8 to 15.6 V)(negative ground)• Frequency stability : ±5 ppm• Operating temp. range : –20°C to +60°C• Antenna impedance : 50 Ω nominal• Input impedance (MIC) : 2 kΩ• Output impedance (audio) : 4 Ω• Dimensions : 220(W) × 110(H) × 109.4(D) mm(Projections not included)• Weight : Approx. 1400 gDD Transmitter• RF output power : 25 W and 1 W• Modulation system : Variable reactance frequencymodulation• Max. frequency deviation : ±5.0 kHz• Spurious emissions : Less than 0.25 μW• Adjacent channel power : More than 70 dB• Audio harmonic distortion : Less than 10%(at 1 kHz, 60% deviation)• Residual modulation : More than 40 dB• Audio frequency response : +1 to –3 dB of 6 dB/octaverange from 300 Hz to 3000 HzDD Receiver• Receive system : Double conversion superheterodyne• Sensitivity (20 dB SINAD) : –5 dBμ emf (typical)–5 dBμ emf (typical) (CH 70 receiver)• Squelch sensitivity : –5 dBμ emf (typical)• Spurious response : More than 75 dB• Intermodulation : More than 75 dB• Adjacent channel selectivity : More than 75 dB• Hum and noise : More than 45 dB• Audio output power : 2.0 W (typical) at 10% distortionwith a 4 Ω loadAll stated specifications are subject to change withoutnotice or obligation.