APPENDIX A – SPECIFICATIONSThese specifications are typical and subject to change without notice.GENERALModel Numbers Frequency Range Channel Bandwidths AvailableModel Numbers, FrequencyRange and Bandwidth140-5018-502140-5018-600140-5028-502140-5028-504140-5048-302140-5048-400140-5048-502140-5048-600140-5098-304140-5098-502140-5098-504136 – 174 MHz136 – 174 MHz215 – 240 MHz215 – 240 MHz406.125 – 470.000 MHz,406.125 – 470.000 MHz,450.000 - 511.975 MHz450.000 - 511.975 MHz880 – 902 MHz928 – 960 MHz928 – 960 MHz6.25 kHz, 12.5 kHz, 25 kHz, 50 kHz6.25 kHz, 12.5 kHz, 25 kHz, 50 kHz6.25 kHz, 12.5 kHz, 25 kHz, 50 kHz6.25 kHz, 12.5 kHz, 25 kHz, 50 kHz,100kHz6.25 kHz, 12.5 kHz, 25 kHz, 50 kHz12.5kHz, 25kHz (ETSI, AS/NZ)6.25 kHz, 12.5 kHz, 25 kHz, 50 kHz12.5kHz, 25kHz (ETSI, AS/NZ)12.5 kHz, 25 kHz, 50 kHz, 100 kHz12.5 kHz, 25 kHz, 50 kHz12.5 kHz, 25 kHz, 50 kHz, 100 kHzFrequency Stability 1.0 ppmModes of Operation Simplex, Half-DuplexFrequency Increment 1.25 kHzPower Source VDC, Negative GNDThe Viper is UL approved when powered with a listed Class 2 power supply.RF Impedance 50 ΩOperating Temperature -30° to + 60° CStorage Temperature -40° to + 85° C, 95% non-condensing RHOperating Humidity 5% to 95% non-condensing RHRx Current Drain at 25°C DC Input 10V DC Input 20V DC Input 30V520 mA (max)450 mA (typ)270 mA (max)240 mA (typ)190 mA (max)170 mA (typ)Tx Current Drain at 25°C Power Out DC Input 10V DC Input 20V DC Input 30VMax Pwr 5.8 A (max)3.6 A (typ)2.5 A (max)1.8 A (typ)1.6 A (max)1.2 A (typ)30 dBm (1W) 1.6 A (max)1.2 A (typ)0.8 A (max)0.6 A (typ)0.6 A (max)0.4 A (typ)Cold start 35 secondsNominal Dimensions 5.50" W x 2.125” H x 4.25" D (13.97 x 5.40 x 10.8 cm)Shipping Weight 2.4 lbs. (1.1 Kg)Mounting Options Mounting plate/pattern & DIN RailFan Output 5VDC, 400mA max.