- Dec 20, 2004
Does anyone have instructions how to setup Unitrunker and SDR# and DSD+ to track a P25 trunking system with only a single SDR?
Ya, they are not expensive, but I didn't realize originally I would need a second. I think I found some instructions on how to do this.Hi wired. Just a quick warning - the program isn't designed for this. Some folks have gotten it to work but your experience will be better with two separate receivers.
That said, I think the trick they use is to configure a Debug receiver as the Voice following receiver and a Signal receiver (discriminator audio only) pointed to the VB Cable or VAC audio "cable output".
Each time the receiver is steered to a voice channel - the decode rate on the discriminator input drops to zero since there's no control channel information. The SDR# trunking plugin will eventually timeout and return the receiver to the control channel to wait for the next call.
These RTLs are $10 to $20 each so buying a second one was - for me at least - an easy decision.