Hytera RD986 - TX;RX Unlock Alarm; Troubleshooting; Repeater Cannot Be Powered On; Group Members Cannot Talk

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Caution: If low voltage is detected when the
repeater is powered by an external battery,
please charge it in time. Disconnect the battery
from the repeater before charging.
TX/RX Unlock Alarm
When the TX PLL or RX PLL is unlocked, the Alarm
Indicator will glow red and the LCD will display the
prompt message below:
TX Unlock Alarm RX Unlock Alarm
Then the repeater will automatically stop partial
operations. You need to:
1. Disconnect the power supply, open the chassis and
check whether the cabling is right or damaged. If
yes, please secure or replace the cable.
2. If you cannot solve the problem, contact your local
dealer for technical support.
When the PLL recovers normal operation, the prompt
message will disappear, and the Alarm Indicator
will go out.
Caution: Disconnect the power supply
before opening the chassis!
Troubleshooting
Phenomena Analysis Solution
The repeater cannot be
powered on.
Power cord is not connected or is not
securely connected to the outlet.
Properly connect the power cord and
ensure secure connection.
Power cord fuse is damaged.
Check if the fuse has blown. If yes, replace
it with a new one.
Group members cannot talk
to each other, or the repeater
cannot communicate with a
subscriber radio.
TX/RX frequency of the repeater is
inconsistent with that of portable/mobile
terminals.
Re-set frequencies.
Failed to repeat useful signal due to
strong interference signal.
If you cannot remove or bypass the
interference source, change to operate at
other frequencies.
The group member is out of the coverage
of the repeater.
Go within the coverage of the repeater.
Group members cannot talk
to each other, even though
RX indication is given.
Your ID is inconsistent with that of other
group members.
Set your ID to the same as that of other
members.
Inconsistent CTCSS/CDCSS. Re-set CTCSS/CDCSS.
Short communication range
or poor audio
Leakage of signal energy due to damaged
connection cable.
Replace the cable with a new one if
necessary.
Loose connection between the antenna
connector and the cable, or loss of
connection
Secure or replace the cable.
Invisible damage to the cable. Replace the cable with a new one.
Duplexer is not properly set (if the
duplexer is mounted).
Contact the manufacturer or your dealer to
re-set the duplexer.
If the above solutions can not x your problems, or you may have some other queries, please contact us or your local
dealer for more technical support.