HTX-242 Two-Meter Mobile Transceiver (190-1126) Specifications FaxBack Doc. #19154 General Frequency Range (Factory) Transmit.....................................................144-148 MHz Receive............................................136.000 - 174.000 MHz Frequency Step...................................5/10/12.5/20/25/50/100 kHz Frequency Stability..............................................+/- 10 ppm Antenna Impedance ..................................................50 ohms Speaker..............................................................8 ohms Microphone...................................Electret Condenser (1.2 kOhms) Operating Temperature.............14 to 140 degrees F (-10 to 60 degrees C) Dimensions (HWD).............................1 5/8 x 5 9/16 x 6 3/16 Inches (42 x 142 x 160 mm) Supply Voltage..........................................13.8 V DC (+/- 15%) Receiver Intermediate Frequency 1st IF..........................................................21.4 MHz 2nd IF...........................................................455 kHz Sensitivity 12 dB sinad..................................................0.25 microV 20 dB nq.....................................................0.39 microV Squelch Sensitivity Threshold.....................................................0.1 microV Tight..............................................10 dB above threshold Spurious Response Attenuation.............................Better than 70 dB Adjacent Channel Rejection................................Better than 70 dB Modulation Acceptance Bandwidth.........................Better than 7.5 kHz Hum and Noise.............................................Better than 40 dB Audio Output Power at 10% THD.............................Better than 2.0 W Audio Distortion.........................................................2% Audio Response.................................................-6 dB/Octave Stand-by Current.....................................................500 mA CTCSS Sensitivity...............................................0.15 microV DTMF Squelch Sensitivity.........................................0.2 microV Transmitter RF Power Output.......................................45 W (high/10 W (Low) Maximum Deviation.....................................................5 kHz Hum and Noise.............................................Better than 60 dB Audio Distortion....................................................3% (TX) Audio Response....................................................+6 dB/Oct Spurious and Harmonic Emissions...........................Better than 60 DB Frequency Error..................................................+/- 10 ppm Microphone Sensitivity.............................................4 mV rms CTCSS Tone Deviation...............................................0.75 kHz DTMF Tone Deviation.................................................3.5 kHz Current Drain.........................................Less than 8 A at 45 W Less than 4 A at 10 W Specifications are typical; individual units might vary. Specifications are subject to change and improvement without notice. (SP-2/16/96)