HT Kenwood THK4AT

RUGGEDIZED WEATHERPROOF CONSTRUCTION This transceiver is built tough to meet the stringent MIL-STD 810 C/ D/ E/ F standards for resistance to rain, vibration, shock and humidity. It also meets the international IP54 standard for dust and water resistance. COMPLIANT LOGO OTHER FEATUERS DTMF encode Wide/ narrow deviation selection Memory channel transfer Automatic simplex check Automatic repeater offset SMA antenna connector Time-out timer Auto power off Specifications TH-K2AT TH-K4AT General Frequency Range* TX: 144-146MHz RX: 144-146MHz TX: 430-440MHz RX: 430-440MHz Mode F3E( FM) , F2D Antenna Impedance 50© Operation Temperature Range -20° C ~ + 60° C Power Requirements ( nominal) External Battery DC 12.0-16.0 V DC 6.0-9.0 V Microphone Impedance 2k© Dimensions ( WxHxD) With PB-43N ( Projections not included) With PB-43N ( Projections included) 58 x 110 x 28.4 mm 58 x 127.7 x 35.8 mm Weight 355g ( with PB-43N, antenna, belt hook) Transmitter RF Output Power ( approx.) HI: DC-IN 13.8 V PB-43N 7.2 V MID: DC-IN 13.8 V PB-43N 7.2 V LO: 5W 5W 1.5W 1.5W 0.5W Modulation Reactance modulation Maximum Frequency Deviation less than ± 5 kHz Modulation Distortion less than 5% ( 300 Hz ~ 3 kHz) Receiver Circuitry Double Super Heterodyne Intermediate Frequency 1st IF 2nd IF 38.85 MHz 450 kHz Sensitivity ( 12dB SINAD) less than 0.18 ¼ V Squelch Sensitivity less than 0.13 ¼ V Selectivity -6 dB -40 dB more than 10 kHz less than 28 kHz Audio Output Power more than 400 mW ( 10% distortion) * Specifications are guaranteed for amateur radio bands only Battery Life Unit: Hours ( figures approximate) TH-K2AT TH-K4AT High Mid Low High Mid Low BT-14, 6 alkaline batteries 4 8 10.5 3 7 9.5 PB-43N 5.5 8.5 11 5 7.5 10 Assuming a duty cycle of 6-second transmit, 6-second receive, 48-second standby Kenwood follows a policy of continuous advancement in development.For this reason specifications may be changed without notice