Instruction manual
5
3. PANEL CONTROLS
1. Speaker
2. Power ON/OFF switch
3. LED display dimmer control
4. Speaker / Phone Switch Directs received audio to the speaker or headphones. The
switch center position mutes both speaker and headphones.
5. Radio I.D. Label indicates which radios are available or installed. The paper label is
held in place by a slotted cardholder allowing easy modification if the radio complement
is changed.
6. Activity Indicators LEDs indicating which radios are being monitored.
Blinks at the syllabic rate if muted and there is activity on that radio.
On steady if selected either by pulling out the VOL control or by selecting it for
transmit using the "Transmitter Selector" knob.
7. Volume controls Rotating VOL control adjusts audio level.
Push the control in to mute radio
Pull the control out to send audio to the speaker or headphones.
8. Transmitter Selector Selects radio to transmit on. Causes the LED above the label to
become steady on. If the radio was previously muted (VOL control "in"), it is no longer
muted.
9. Microphone Selector Selects microphone #1 or microphone #2. The center position
(off) mutes both microphones.
10. Modulation Indicator The green LED should blink when properly speaking into
the mic. Steady on means you are speaking too loud. Never blinking means you are
speaking too softly.
11. Side Tone Level Adjusts level of side tone in head phones
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