What was this fix. I've been having the same issues with my apx. I'm considering a test, one system with all talk groups assigned to the one system and seeing whether it still picks up the rmr without having any control channels and leaving non adj site search on. Anyone able to confirm if they have tested this prior?
You'll need the following setup/configuration to receive both networks.
System 1 - MMR (Setup with MMR control channels, both MMR/RMR Channel ID plan)
System 2 - RMR (Setup with MMR control channels, both MMR/RMR Channel ID plan)
It is
very important you have non-adjacement unticked. This is due to both sharing the same SYSID & WACN and causing the radio to select the strongest site (could be an MMR site when you're attempting to listen to RMR).
Full Spectrum Control Channel Scan: unticked (Location in Trunking Wide)
Validate NAC Against System ID: unticked (Located in Trunking System)
As for the "Trunking Wide" I've found the below configuration the best for receive on both networks - I adjusted the values over the past few weeks to try and find the best configuration for RSSI etc.
The below screenshot I have received RMR statewide with nil issues and the MMR as far as Trafalgar (couldn't test beyond that location today)