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Dmr ipsc lockup

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Aug 8, 2017
Looking for advice - on IPSC Talkgroup locking up:

Over the last few weeks I have had an issue with some IPSC DR 3000's .

The Channel has a Master and 5 Peers.

Occasionally (as in twice in the last 3 weeks) one Talk Group has stopped working. We have 2 Talk groups sharing each Time Slot on the Channel, and all the others work away fine – just one constantly gives busy.

The way I have fixed is the first time was to do a reset on the Master repeater and this recovered the Talk Group. The second time resetting the Master did not solve it, but resetting one of the peers did. I

I have checked and there is not new firmware available – we are running Version 2.4 on all repeaters.

Anyone come across anything similar and managed to get a permanent fix ?

Thanks in advance


Database Admin
Jun 14, 2005
A single talk group locks up on all 6 repeaters? By locks up, you mean "locked out?" Or it keys up and takes up a time slot across all 6 repeaters?

This can go in a lot of different directions. Have you looked at the system with RDAC and checked the RSSI settings for each repeater as well as read the RSSI values while each repeater is both active and sitting idle?


Feed Provider
Dec 19, 2002
I've seen this before on XPR8300's where time slot 1 was illuminated all the time as if somebody was talking. I think the cause ended up being the that the customer was using AVL and the ARS base station or computer was off.
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