DP480 Service Manual
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Nuisance Delete to delete this channel before it goes on scanning. You can also add a temporary channel
during scan. After exiting scan mode, the channel which is temporarily deleted or added will turn invalid.
Scanning Revert Channel
During radio scan, press the PTT key to enable the radio to transmit or talk on the preset channel. This
channel can be set by local dealer using programming software.
Prior Scan
If a priority channel is set in a scan list, the channel will be scanned in cycle, i.e. being scanned once before
each common channel is scanned. For example, if a scan list has channels 1, 2, 3 and 4 with channel 2 set
as a prior channel, the scan order will be 1
→
2
→
3
→
2
→
4
→
1.
5.3.Zones
A group of available traffic channels constitute a zone. Please select a zone by pressing a side key.
5.4.Setting
The radio can be set to cater to your habits or meet your needs. Settings include power, squelch level, alert
tones, sleep mode, CPS password and speech encryption, and they may vary for different dealers.
Power
Under high power, communication distance is longer but battery life is shorter; under low power,
communication distance is shorter and battery life is longer. You can set a power level for each channel.
Squelch Level
You can set the squelch level of the radio to any of 0 to 9. The higher the squelch level is, the more noise
interference there will be and the harder to receive weak signals.
Alert Tone
You can enable or disable various alert tones via the PC Tool.
Microphone Gain
Microphone gain is the value based on which an audio level is amplified. You can adjust volume by setting
a microphone gain. The higher the gain is, the higher the volume will be.
Note:
To avoid speech distortion, do not set a too high gain.
Power-saving Mode
You can enable this mode to enable the radio to automatically enter power-saving mode if it has not
transmitted or received carriers for a set period. In this mode, fewer programs are run and less battery is
consumed, so that battery life is prolonged.
CPS Password
You can set a password for the CPS (customer programming software).
Summary of Contents for DP480
Page 9: ...DP480 Service Manual 6 4 Circuit Description 4 1 Circuit Diagram of Main Board ...
Page 76: ...DP480 Service Manual 73 Top Layer Layout Drawing of Main Board ...
Page 77: ...DP480 Service Manual 74 Bottom Layer Layout Drawing of Main Board ...
Page 79: ...DP480 Service Manual 76 Top Layer Layout Drawing of Key PCB ...
Page 80: ...DP480 Service Manual 77 Bottom Layer Layout Drawing of Key PCB ...
Page 84: ...DP480 Service Manual 81 Top Layer Layout Drawing of Module Board ...