Uniden MHS550 Radio Owner’s Manual 41Transmitter SpecificationsUnit NominalFrequency Tolerance @ 25˚C to 50˚C PPM ± 0.5Frequency Stability -20˚C to 50˚C PPMCarrier Power(MRN 5W) W 5(MRN 2.5W) W 2.5(MRN 1W) W 1(FRS/MRN 0.5W) W 0.5Spurious Emission (MRN 5W) dBc 53(MRN 2.5W/1W) dBc 58Modulation FrequencyResponse500 MHz dB -62000 MHz dB +6Microphone Sensitivity (MRN for ± 3 kHz Deviation) mV 6(FRS for ±1.5 kHz Deviation) mV 6Maximum Deviation @100mV Input(MRN) kHz ± 4.5(FRS with Subaudio) kHz ± 2.3Modulation Distortion 750 μSDe-emphas 0.3 to 3 kHz BPF % 0.6Hum and Noise 750 μS (MRN) dB 38De-emphas 0.3 to 3 kHz PF (FRS) dB 35Current Drain @ HighPower 5W(MRN) mA 1500(FRS) mA 650