3FT-70DR/FT-70DE Operating ManualControls & ConnectionsTransceiver①②③④⑤⑥⑦⑧⑨⑩⑪⑫⑯⑬⑭⑮⑧Antenna Jack (SMA)* ( 12)LCD (Liquid Crystal Display) ( 6)The display shows the current operating conditions.PTT Switch ( 17)• Press and hold the PTT switch to transmit, and release it to receive.• In the Set mode, press the PTT switch to save the new setting and return to normal operation.Microphone ( 17)MONI/T.CALL SwitchUSA/Asian versionPress the MONI/T.CALL switch to open the squelch.European versionPress the MONI/T.CALL switch to activates the T-CALL(1750 Hz).Regarding the current operating mode, both the analog FM and C4FM may moni-tor the received audio signal.Press the [F] key → press the MONI/T-CALL switch and then rotate the DIALknob to adjust the squelch.VOL Switch ( 14)While pressing and holding the VOL switch, rotate the DIAL knob to adjust the audio volume level.Power (Lock) Switch ( 14, 18)• When the power is OFF, press and hold this switch to turn the Power ON.When the power is ON, press and hold the switch again to turn the Power OFF.• When the power is ON, press this button briefly to engage, or release the key lock.Battery pack* ( 12)