DSDPlus 2 Dongle monitoring issue on DMR Tier III system

[W4KRR]

I'm using DSD+ Fastlane version 2.368 and a two-dongle (Airspy) monitoring setup to monitor some local trunked systems. Here is the .BAT file that I am using:

start FMPA -i1 -o20003 -rc -f460.550 -_1 -wsl15.43
start DSDPlus -i20003 -rc -O NUL
start FMPA -i2 -rv -o20002
start DSDPlus -rv -i20002 -O NUL

This .BAT file successfully works on P25 systems, as well as a DMR Connect Plus system, and a NXDN 4800 baud trunked system. However, this BAT file will not work properly on a Motorola DMR Tier III trunked system. In order to get this .BAT file to work on the Tier III trunked system, I have to go into the DSD+ Control Channel Event Window under the "Control" tab and change the role from "CC Monitor (1 of 2)" to "Combined CC / VC Monitor". I then have to change the "Output" to "Synthesize all digital voice" . After doing this, it then works on the Tier III system, but only using one dongle instead of two.

Is there something about Motorola Tier III systems that would cause this, or is there something amiss in my .BAT file?

All of these systems are located in Broward County, FL.

 

[Kazzaw]

Something amiss in your .bat file. I don't remember what switches you need but notes.txt will tell you

 

[W4KRR]

Something amiss in your .bat file. I don't remember what switches you need but notes.txt will tell you

I can't figure out what it is. The same .bat file works with the other protocols. Must be something unique to Tier III systems.

 

[Kazzaw]

I can guarantee you it isn't, I have never had to change any settings when firing up DSDPlus and switching between different protocols and I primarily flick between P25 and DMR TIII

Have you got your DSDPlus.frequencies file populated for tracking TIII? Otherwise you would just be decoding the voice on the spare slot of the control channel

 

[W4KRR]

I can guarantee you it isn't, I have never had to change any settings when firing up DSDPlus and switching between different protocols and I primarily flick between P25 and DMR TIII

Have you got your DSDPlus.frequencies file populated for tracking TIII? Otherwise you would just be decoding the voice on the spare slot of the control channel

Yes. It will track the Tier III system just fine using just one Airspy, but not using two.

 

[slicerwizard]

It's a long shot, but I'd try shutting it all down and moving or renaming the DSDPlus.bin file. Maybe there's some setting buried in it that is causing grief.

If (big if...) that fixes it, restore the .bin file and see what settings are different between CC mode and 1R mode.