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User Manual of DM‐5R Two‐way Radio
Digital channel can't achieve individual call
or group call
Communication distance is short.
Other tones (not from group members) appear
in the channel.
Noise level is high.
▲If the methods above fail to solve your problems or you meet some other failures, please contact local dealer for more technical
support.
■Maintenance and cleaning
To ensure that this two-way radio exerts its excellent performance, thereby extending its service life, please familiarize yourself
with the content below and conduct daily maintenance and cleaning better.
■Maintenance
Don't put the two-way radio in an environment with substance that may erode electronic circuit;
During carrying or using the two-way radio, don't hold the antenna or external microphone directly with hands;
When the accessories are not used, close the accessory interface cover properly.
■Cleaning
Please remove the dust adhered on the surface of the two-way radio and the charging pole with clean and dry lint free cloth or
brush.
Wipe the dust and dirt on the two-way radio with lint free cloth to avoid bad contact;
After the two-way radio has been used for a long term, its keys, control knob and shell get dirty easily. Neutral detergent (rather
than highly corrosive chemical agent) and wet cloth may be used to clean them. After cleaning, be sure that the two-way radio
are thoroughly dry, otherwise it shall not be used.
When the two-way radio isn't used, close the cover of accessory jack;
Please turn off the two-way radio and take the battery out before you clean the two-way radio.
Other members in the group may be too far away. Please confirm whether
you are within the valid range of other two-way radios.
If the two-way radio can't make normal call in digital mode, please
check whether the color code, contact and receiving group address
are abnormal. Investigate in accordance with Point 1 and Point 2 of
the digital operation instructions.
Confirm whether the antenna is in good contact and is the original
antenna, and whether the battery voltage is normal. The dealer adjusts the
squelch level.
Please change the CTCSS signal tone. At this time, be sure to change the
signal tone of all two-way radios in the group.
The two-way radio is too far away from other members. After adjusting
the valid communication range, reset the two-way radio and try again.
The two-way radio is in a bad location such as in a place that is blocked
by a high building or in basement. After transferring the two-way radio to
a flat and open place, reset it and try again.
The two-way radio is interrupted by external environment or
electromagnetic field. Keep the two-way radio away from equipments
which may interrupt it.
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