Frequency Coverage Tx Rx Rx Weather 118 000 ndash 136 99166 MHz 108 000 ndash 136 99166 MHz 161 650 ndash 163 275 MHz Type of emission 6K00A3E, 5K60A3E, 16K0G3E Weather Channel spacing 8 33 kHz 25 kHz No of memory channels 200 channels Antenna impedance 50 Omega BNC type antenna connector Power supply requirement 7 2 V DC Current drain at 7 2 V DC Tx High Rx Max audio Rx Stand by 185 A 650 mA 65 mA typical Operating Temperature Range 10 deg C to 60 deg C 14 deg F to 140 deg F Dimensions W times H times D 52 2 times 111 8 times 34 1 mm, 2 1 times 4 4 times 1 3 in with BP 280 Weight approx 257 g, 9 1 oz with BP 280 Transmitter Output power at 7 2 V DC 6 0 W PEP , 1 8 W carrier Frequency stability plusmn 0 4 kHz Audio harmonic distortion Less than 10 at 60 modulation Spurious emissions More than 46 dB Receiver Intermediate frequency 1st 2nd 46 35 MHz 450 kHz Sensitivity typ COM at 6dB S N NAV at 6dB S N Weather at 12dB SINAD Less than 0 dB mu Less than 3 dB mu Less than ndash 8 dB mu Squelch sensitivity Threshold Less than 0 dB mu , Weather Less than ndash 5 dB mu Hum and noise More than 35 dB at 30 modulation Spurious response More than 60 dB, Weather More than 30 dB Audio output power Internal speaker External speaker 1500 mW typical More than 350 mW AM 8 Omega 60 modulation at 10 distortion Ext speaker connector 3 conductor 3 5 d mm Except operating frequency plusmn 62 5 kHz in 25 kHz channel spacing Except operating frequency plusmn 20 825 kHz in 8 33 kHz channel spacing Measurements made in accordance with FCC Part 87 All stated specifications are subject to change without notice or obligation Applicable U S Military Specifications amp IP Rating Standard MIL 810F Method Proc Low Pressure 500 5 I, II High Temp 501 5 I, II Low Temp 502 5 I, II Temp Shock 503 5 I C Solar Radiation 505 5 I Rain 506 5 I, III Humidity 507 5 II Salt Fog 509 5 mdash Dust Blowing 510 5 I Immersion 512 5 I Vibration 514 6 I Shock 516 6 I, IV Also meets equivalent MIL STD 810 C, D, E and F Ingress Protection Standard Dust and Water IP67 IP54