VEV-528S uses the phase-lock link frequency synthesis

VEV-528S sets at the CTCSS function and DQT digital mute audio frequency function VHF5.5W/UHF the 5W output computer programs and adjusts 16 memories frequency channels, uses the phase-lock link frequency synthesis, the microcomputer control menu is simple and direct, the ease of operation province electricity function, lengthens the battery the period of revolution earphone/microphone jack, facilitates meets listens with to converse on the telephone transmitter Transmitter receiver Receiver The frequency stability ------------------- ± 2.5ppm reference sensitivity --------------- < 0.2 mu V carrier output --------------- <= 5W audio frequency distorts ------------------ <= 3% modulation limit --------------------- <= 5KHZ the audio frequency response -----------------+2dB~-10dB audio frequency to distort -------------------- <= 3% altogether channel to quench ---------------- >= -8dB modulating characteristic -------------------+3dB~-3dB neighbouring frequency channel selectivity ------------- >= 55dB neighbour power ----------------- >= 65dB intermodulation  ---------------- >= 55dB  radio-frequency component -------- <= 7.5 mu W response  ---------- >= 55dB to take band width ------------- <= 16KHz to block characteristic ------------------ >= 85dB Integral part General Frequency range -------------------------400~420MHz simplex or the different frequency simplex size ----------------------------140mm×60mm×38mm (does not contain antenna) 400~470MHz application temperature scope -------------------20 degree Celsius to +50 degree Celsius rated voltages ------------------------DC7.2V work way ----------------------- same frequency weight --------------------------- approximately 220g (to contain battery) the antenna impedance -------------------50 Omega