CTCSS ENCODER / DECODER FOR OLD TRANSCEIVER,REPEATER,LINK,ETC.GENERATED WITH FX365 ALL SET OF STANDARD SUB TONES With the incorporation of the on-chip TX and RX speech filter, the FX365 enhances voice/tone multiplexing by attenuating TX and RX speech 36dB at frequencies below 250Hz while passing signals > 300Hz with only 1dB of ripple. This not only minimizes CTCSS talk-off in the TX mode but also improves Hum and Noise performance in the RX mode. SIZE IS 4 X 5CM.VOLTAGE:9-15V CURRENT: 10mA. FOR MORE INFORMATION PLEASE CONTACT ME. FOR MORE DETAIL'S PLEASE DOWNLOAD :www.rapidshare.com/files/4042070496/ctcssdecoderhelp.pdf