Care Tips to DMR Repeater (With Troubleshooting)

13 Sep. 2016   Information

To guarantee optimal performance as well as a long service life of your DMR repeater, please follow the tips below.
Repeater Care

• Keep the repeater at a place of good ventilation and heat dissipation to facilitate normal work. 
• Do not place irrelevant articles on top of the repeater to ensure optimal heat dissipation.
• Do not place the repeater in corrosive agents, solutions or water. 

Repeater Cleaning

• Clean up the dust and fine particles on the repeater parts with a clean and dry lint-free cloth or a brush regularly.
• Use a non-woven cloth with neutral cleanser to clean after long-time use. 
• Do not use chemical preparations such as stain removers, alcohol, sprays or oil preparations. 
• Make sure the repeater is completely dry before use.

Caution: Power off the repeater before cleaning.

Troubleshooting of DMR Repeater
Phenomena 1 The repeater can not be powered on.

• Analysis 1: Power cord is not connected or is not securely connected to the outlet.

      Solution 1: Properly connect the power cord and ensure secure connection. 

• Analysis 2: Power cord fuse is damaged.

      Solution 2: Check if the DC fuse has blown, and if yes, replace it with a new one.

Phenomena 2 Group members can not talk to each other, or the repeater can not communicate with a subscriber radio.

• Analysis 1: TX/RX frequency of the repeater is inconsistent with that of portable/mobile terminals.

      Solution 1: Re-set frequencies.

• Analysis 2: Failed to repeat useful signal due to strong interference signal.

      Solution 2: If you can not remove or bypass the interference source, change to operate on other frequencies.

• Analysis 3: The group member is out of the coverage of the repeater.

     Solution 3: Go within the coverage of the repeater.

Phenomena 3 Group members can not talk to each other, even though RX indication is given.

• Analysis 1: Your ID is inconsistent with that of other group members.

      Solution 1: Set your ID to the same as that of other members.

• Analysis 2: Inconsistent CTCSS/CDCSS.

      Solution 2: Re-set CTCSS/CDCSS.

Phenomena 4 Short communication range or poor audio

• Analysis 1: Leakage of signal energy due to damaged connection cable.

      Solution 1: Replace the cable with a new one if necessary.

• Analysis 2: Loose connection between antenna connector and the cable, or loss of connection.

     Solution 2: Secure the connection or replace cable plug with a new one if necessary.

• Analysis 3: Invisible damage of cable.

      Solution 3: Replace the cable with a new one.

• Analysis 4: Duplexer is not properly set (if duplexer is mounted).

     Solution 4: Contact the manufacturer or your dealer to re-set the duplexer.