Controls and interface
ControlsBase station

Figure 1. Base station
Built-in speaker.
Rotary knob with center OK push button — Press knob in to access menu and DSC functions and to confirm selections. Turn rotary clockwise or anti-clockwise to move up and down through menu items or to change channel from the Homescreen.
LCD.
VOL/SQU — Turn knob to adjust volume or squelch up and down. Press center button to switch between volume and squelch control.
DISTRESS — Push up the spring loaded cover and press this button to make a DSC distress call.
16 / + — When powered on press to switch between priority channels.
Power — Press to power the unit on. Press and hold for 3 seconds to power the unit off. Momentary press to access the shortcut list.
Back — Move back through menu options.
ControlsFistmic

Figure 2. Fistmic
- PTT (Push to Talk) — Press and hold to send a voice message. Release to return to receive mode.Note
The maximum transmit time is limited to 5 minutes to prevent un-intentional transmissions from occupying the VHF channel.
Speaker.
Microphone location.
16 / + — When powered on press to switch between priority channels.
HI/LO — Press to switch between High (25 W) and low (1 W) transmit power.
Channel Up / Channel Down — Changes the channel up or down.