Abell A720T, Service Manual

Page: 19 / 56

A720T (VHF) Service Manual V1.0
19/56
Charter 6 Functions and Configurations
6.1 Function Definition and Parameter Configuration
6.1.1 Channel
This machine can store up 32 channels in 2 areas. 16 channels in each area.
6.1.2 Scan
Press preset scan key to active scan function, radio indicator LED will flash yellow. Once signal detected in any of
the channels, indicator LED will long bright green, speaker will open. There will be a delay after channel disappear,
then go to scan next channel.
Press preset scan key to quit scan status.
Two Scan Ways
Main channel scan(manually): radio will scan all channels/groups in your preset scan list. When enter scan mode,
according to different settings, your radio can start scan from the last scanned active channel/group or start scan
from current channel.
Auto scan(automatically): After you choose an active preset scan channel/group, radio will start scan automatically.
Start and Stop Scan
Steps:
Press pre-programmed scan key. Or switch the channel knob to select a scan channel(pre-programmed).
After scan function activated, indicator LED will flash yellow, you will hear a prompt “Di” tone. After scan stopped,
indicator LED no stop bright, you will hear a prompt “Di Di” tone.
During scan, response to scan
When your radio scan detect stop at an active channel/group, radio will keep staying at this channel, which is called
pre-programmed time limit of free time.
Steps:
1Hold radio and place it 1 to 2 inch away from your month at vertical position. If you turn on
“ Channel Free ”
function, you will hear a short sound after the caller released PTT key, which means this channel is unoccupied and
wait for your speaking.

Within the free time, press PTT key, indicator LCD will 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 listen.

If you don’t have any response during free time, radio will leave and scan other channels.
6.1.3 Power/Battery Save
You can turn this function via customer programming software.
If there is no any operation or call 8 seconds after power on, your radio will active power/battery save mode.
Select Open: Turn on power/battery save mode
Select Close: Turn of power/battery save mode