Abell A720T, Руководство по обслуживанию

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A720T (VHF) Service Manual V1.0
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Release PTT key to receive. When other radio is speaking, indicator LED bright green.

If you turned on “Channel Free” function when programming, after the caller released PTT key, you will hear a
short prompt tone, which means this channel is free for you to call back/speak. You can press PTT key to
speak.

If there is no voice activity within preset time, the call is over.

Make Individual Call
Steps:

Switch channel knob, use activated Individual ID to select channel.

Hold radio and place it 1 to 2 inch away from your month at vertical position.

Press PTT key to make call/speak, indicator LED bright red.

Wait till the “call tone” is finished(if you turned on “call tone” during programming), then start to speak.

Release PTT key to receive. When other radio is speaking, indicator LED bright green.

If you turned on “Channel Free” function when programming, after the caller released PTT key, you will hear a
short prompt tone, which means this channel is free for you to call back/speak. You can press PTT key to
speak.

You will hear a short tone
Make All Call
You can speaking to all radios at the same channel if your radios pre-preogrammed to use this function.
Steps:

Switch channel knob, use activated Individual ID to select channel.

Hold radio and place it 1 to 2 inch away from your month at vertical position.

Press PTT key to make call/speak, indicator LED bright red.

Wait till the “call tone” is finished(if you turned on “call tone” during programming), then start to speak.
Radios on the same channel cannot answer your all call.
Make Group Call and Individual Call by Pre-programmed Call Key
You can pre-program a function key with an ID to make group call or individual call. You can pre-program long
press or short press function key to active this function. You can pre-program only one group/individual call ID to a
function key or pre-program this function to several function key.
Steps:

Press the pre-programmed function key to make a call to predefined individual or group.

Hold radio and place it 1 to 2 inch away from your month at vertical position.

Press PTT key to make call/speak, indicator LED bright red.

Wait till the “call tone” is finished(if you turned on “call tone” during programming), then start to speak.

Release PTT key to receive. When someone is speaking, your indicator LED bright green.

If you turned on “Channel Free” function when programming, after the caller released PTT key, you will hear a
short prompt tone, which means this channel is free for you to call back/speak. You can press PTT key to speak.
If there is no voice activity within preset time, the call is over. For individual call, you will hear a short tone
after call over.
6.1.10 Low Battery Warning
You can know exactly the battery capacity in time.
Warning tone in first stage: When battery voltage is lower than 6.3V±0.1 during transmitting, your radio will give