Instruction manual

2 Controls and functions
2-1 Front panel controls
The front panel of the ARD25 features three status LEDs, a power switch, gain control and
headphone jack.
1 Power switch
Slide the Power switch to the right to switch on the ARD25.
To switch off the ARD25, slide the Power switch to the left. The green LED will light when
power is on.
2 P- 25 LED
Lit while decoding P25 digital signals.
3 BUSY LED
Lit while receiving signals in analog mode or digital mode.
Lit while receiving encrypted digital signals (no decoding).
4 PHONES
Plug in stereo type headphones to disable internal speaker. (Audio signal is available in
monaural only.)
5 AF GAIN
Adjust speaker volume. Turn clockwise to increase audio.
4