Model Number: TDX-Q7 Dual Band Radio Transmi Key Specifications/Special Features: Lcd display waterproof dual band radio transmitter tdx-q7 frequency:136-174 & 400-480mhz. Channels:2*128. Battery:1800mah. Good design + lcd display waterproof dual band radio transmitter tdx-q7. This transceiver is innovative in design, powerful, and stable in performance, and easy to operate. We are confident that the quality and functionality of this transceiver will satisfy you and meet all your communication needs. > specification. Good design + lcd display waterproof dual band radio transmitter tdx-q7. Frequency:136-174 & 400-480mhz. Channels:2*128. High capacity battery (1800mah). > product function. Voice prompt. Ctcss/dcs. Time out timer (tot). Monitor. Busy channel lockout (bcl). High/low power adaptable. Priority channel scan. Restore to scan channel. Low power alert. Alarm function with side key. Fm radio. Compander function. Vox transmission. End tone elimination. Wire clone. Computer programmable. > product parameter. Technical parameter. Model/ general. Tdx-q7. Frequency range. Vhf. Uhf. 136-174mhz/245-246mhz. 400-480mhz/350-390mhz. 465-520mhz. Channel capacity. 2x128. Channel spacing. 25khz. Antenna impedance. 50. Microphone impedance. 600. Operating voltage. 7.4v dc. Frequency stability. 卤2.5ppm. Size(without antenna). 112mm(l)脳61mm(w)脳33mm(d). Weight(with battery). 210g. Battery. 1800mah(polymer li-ion). Transmitter. Rf power output. 5w. Modulation type. Fm. Modulation sensitivity. <15mv. Modulation distortion. =5%. Max freq deviation. =5khz/=2.5khz. Main Export Markets: North America