Accessing a DMR Repeater
When you want to access a DMR repeater, you must have the frequency, Color Code, and Talk Group set
Ricky has the code plug for the MD 380 DMR radio for our local DMR repeater.
A code plug is simply a radio’s configuration file. Ricky has a code plug for our area on the DMR repeater located
at PMC. I presented this last month meeting on the DMR Operating Procedure at last month meeting.
DMR repeaters use Color Code Plugs (CC) much like analog repeater use CTCSS (PL) or DCS. To access a
repeater you must program your radio to use the CC as the repeater. There are 16 different CCs (CC0-CC15. The
use of Color Codes is not optional on DMR system. If your Color Code is not set correctly, you will not be able
to access the repeater.
You can download the 380 software to program your DMR radio at:
If you have problems programming your radio, Ricky can program it for you
When you key your transceiver, you send a signal to the repeater and the repeater responds back to you to
acknowledge you can transmit your message.
Example: Key up your radio and wait till you here the repeater acknowledges you before talking.
If you do not receive the repeater acknowledgment, your radio will stop transmitting and you will hear a negative
confirmation tone. You could be out of range of the repeater.
This is one of the advantages of TDMA: allowing bidirectional communications between user and the repeater when
The repeater can also signal your radio to stop transmitting if there is contention on the network because more than
one station is transmitting at a time.
To use the radio you must have a DMR 7 DIGIT ID number that identifies you.
Go to this web site: https://register.ham-digital.org/ scroll down towards the bottom of the page.
Register services for an individual callsign (including private hotspots and private repeaters)
Register services for a public unattended station (repeater/gateway with special license to run 24/7 unattended)
Check mark the first one and fill in your callsign to start the registration.
Click OK. Fill in the required information. You will receive your number by email in 3 days.