I'm using DSDplus with two generic RTL-SDRs it works great for decoding the local municipalities P25p1 system. I use cc, fmp-24, vc, vc-fm24 to start the system. Sometimes it will not lock onto the control channel because the gain is set to 0 and you can't even see the spike. It usually auto corrects to 19.2 but using the g/G has no effect it just stays 0 I can use the other keyboard shortcuts to effect. I have tried adding -g19 to the command line in the batch file with no effect gain remains at zero. Any thoughts, could it be hardware related? It happens intermittently, but only at startup. If it opens and sets the gain it works fine till I stop it.