Approvals MED (Wheelmark) FCC IC CHANNELS AND FREQUENCIES Frequency range 149.3 - 174 MHz Channel Separation 25 kHz Pre-programmed channels GMDSS Additonal programmable channels 100 ATIS call sign programmable X FEATURES Squelch control X Transmitter power (Hi/Lo) (radiated) 2/1W Dual watch, Tri-watch, scanning X Call Channel Program and Selection X Red back light with dimming X Keypad lock X Keypad beep On/Off X Backlit keypad X Light on key press or manual only X Display contrast X CTCSS Scrambler Battery save function X Battery level indicator X BATTERY 1800 mAh Rechargeable Li-Ion battery X GMDSS battery X