HTX-404 440 MHz UHF FM Transceiver (190-1140) Specifications Faxback Doc. # 8840 General: Frequency Range: ..................................... 440.000-450.000 MHz Frequency Step: ................................. 5/10/15/20/25/50/100 kHz Frequency Stability: .......................................... +/- 10 ppm Antenna Impedance: .................................... 50 Ohms Unbalanced Speaker: .......................................................... 8 Ohms Microphone: ............................... Condenser Microphone 1.2 kOhms Channel Display: ............................................ LCD 8 Digits Operating Temperature: ...................... 14 F to 140F (-10 C to 60 C) Size: ................... 2-9/16 x 4-5/8 x 1-7/8 Inches (65 x 117 x 37 mm) Weight: ............................................... 1 lbs 3 oz (540 g) Supply Voltage: Alkaline Battery Pack: .............................. .............. 9 VDC Ni-Cad Battery Pack (600 mAh): ................................... 7.2 VDC External Power Jack: ..................................... 7.2 to 13.8 VDC Receiver: Intermediate Frequencies: 1st IF: ........................................................... 45 MHz 2nd IF: .......................................................... 455 kHz Sensitivity: 12 dB SINAD: ...................................................... 0.2 uV 20 dB NQ: ........................................................ 0.35 uV Squelch Sensitivity: Threshold: ........................................................ 0.1 uV Tight: ............................................. 10 dB Above Threshold Spurious Response Attenuation: ..................................... 60 dB Inter-modulation Attenuation: ...................................... 60 dB Adjacent Channel Rejection (25 kHz): ............................... 50 dB Modulation Acceptance Bandwidth: ................................... 9 kHz Hum and Noise: ..................................................... 35 dB Audio Output Power (10% THD): 7.2V DC: ........................................................... 0.3 W 9V DC: .............................................................. 0.5W 12V DC: .............................................................. 1 W 13.8V DC: ............................................................ 1 W Audio Distortion: .................................................... 2 % Audio Response: ............................................. -6 dB/Octave Current Drain: Stand-By Without Power Save: .........................................35 mA Stand-By With Power Save: ............................................25 mA CTCSS Sensitivity: .................................................0.15 uV DTMF Squelch Sensitivity: ...........................................0.2 uV Transmitter: RF Power Output: 7.2 VDC: ............................................................1.5 W 9 VDC: ..............................................................2.5 W >12 VDC: ............................................................. 5 W Low Power: ......................................................... 0.5 W Maximum Deviation: ............................................... 4.5 kHz Hum and Noise: ..................................................... 35 dB Audio Distortion: ................................................... 0.5% Audio Response: ............................................. +6 dB/Octave Spurious and Harmonic Emissions: ................................... 70 dB Frequency Error: ............................................... +/0.0005% Microphone Sensitivity: ......................................... 4 mV RMS CTCSS Tone Deviation: ............................................ 0.7 kHz DTMF Tone Deviation: ............................................. 3.5 kHz Current Drain: 7.2 VDC: ........................................................... 1.2 A 9 VDC: ............................................................. 1.4 A 12 VDC: ............................................................ 1.6 A 13.8 VDC: .......................................................... 1.8 A Low Power: ......................................................... 0.8 A (smc/eb 3/2/98)