SDS100/SDS200: SDS100 issues with DMR Tier III

[Experiment626]

Hello all.

I am trying to monitor a new DMR Tier III system that has popped up locally. The system is UHF and appears to have two frequencies per site, with one being what appears to be a constant control channel with some voice and the other frequency being strictly voice. The voice traffic seems to alternate between the two frequencies as a conversation carries on.

My issue is that despite many efforts I have not been able to get the scanner to correctly follow the system. I have tried using LCN finder with no luck. I have also tried using DSD+ and have tried obtaining the LSN and then converting that into what should be the proper LCN numbers but it still won't correctly track the system.

My scanner does have the latest firmware and all, and has the DMR upgrade of course. I have also confirmed it's not a weak signal or interference issue so I'm kind of stumped.

I am to trying figure out a couple of new sites that aren't in the database for this system. The system in question is this one: Louisville Gas & Electric - Kentucky Utilities Trunking System, Elizabethtown, Kentucky - Scanner Frequencies



Any thoughts? Any advice would be much appreciated.

 

[ka3jjz]

We have a couple of such threads for the SDS100 in our wiki - check out this section. Be sure to read the entire section

SDS100 and SDS200 FAQ Page - The RadioReference Wiki

wiki.radioreference.com

Mike

 

[Experiment626]

We have a couple of such threads for the SDS100 in our wiki - check out this section.

SDS100 and SDS200 FAQ Page - The RadioReference Wiki

wiki.radioreference.com

Mike

Thank you for the response. I have done a lot of reading and experimenting with some of the suggestions from the wiki and the threads that are linked to it as well.

For some reason I am still having issues getting it to work correctly, so I'm not sure what is going on. I'll keep trying and will post if I get it working correctly.

 

[pro106import]

I believe there is a firmware bug with the SDS100 with Tier III systems. Still no fix. I can enter all the freqs in as DMR one frequency system and that is the closest I can get to some kind of talkgroup control, but not much. So I use my Whistlers instead.

 

[Experiment626]

I believe there is a firmware bug with the SDS100 with Tier III systems. Still no fix. I can enter all the freqs in as DMR one frequency system and that is the closest I can get to some kind of talkgroup control, but not much. So I use my Whistlers instead.

That would explain it then. I've tried everything that I know to do and cannot get it to properly track this system.