Model Number: A-618S Key Specifications/Special Features: Wireless walkie talkie a-618s with alarm function 1.priority channel scan. 2.vox function. 3.moni. 4.scramble function. Handheld intercom. Model no.:. A-618s. Two way radio,transceiver,handheld transceiver. Walkie-talkie,wireless interphone,intercom,intercoms,digital tranceiver. Fm transceiver,professional walkie talkie,professional handheld transceiver,wireless communication. Features. Ctcss/cdcss. Tot(time-out-timer). Moni(monitor). Priority channel scan. Restore to scan channel. Busy channel lockout function. High/low power switching with side key. Alarm function with side key. Fm radio. Vox function. Specification. General. Frequency band. Vhf. Uhf. Frequency range. 136mhz-174mhz. 400mhz-480mhz. Channel capacity. 16. Channel spacing. 25khz. Antenna impedance. 50o. Microphone impedance. 600. Operating voltage. 7.4v dc卤15%. Frequency stability. 卤2.5脳10-6. Size(without antenna). 58(w)mm脳114mm(l)脳36mm(d). Weight(with battery). 197g. Battery. 1300mah(li-ion). Compatible with american. Military standard(mil-std-810c/d/e). Transmitter(eia-rs 316b standard). Rf power output. <5w. Modulation type. Fm. Modulation sensitivity. <15mv. Modulation distortion. =5%. Max freq deviation. =5khz. Occupied bandwidth. =16khz. Modulation feature. 卤3db. Spurious radiation. =7.5碌w. Adjacnet channel power. =-65db. Receiver. Sensitivity(12db sinad). =0.15碌w 12db s/n. Silent sensitivity. =0.10碌w. Audio power output. 500mw(12o). Audio respond. +2 -8. Operrating bandwith. >5khz. Co-channel rejection. =-8db. Blocking. =85db. Adjacent channel selectivity. =65db. Standby current. 50ma or 15ma. Spurious response. =60db. Intermodulation rejection. =60db. Main Export Markets: North America