I'm trying to get Unitrunker to scan the Ohio MARCS-IP system, which is Apco P25 Phase I. I have two RTL-SDR dongles and I'm trying to have Unitrunker run them directly. In SDR#, I found the control channel on one of the alternate frequencies and calibrated both dongles. The control channel is coming in about 10-12dB over the noise floor. I've been trying to follow the various instructions and tutorials for Unitrunker but all of them are either from before Unitrunker could control the RTL-SDR directly or from a few versions ago so none of the necessary settings are where the tutorials say they'll be. I'm pretty much hitting a brick wall trying to get Unitrunker going.
-I've installed and started Unitrunker
-I've clicked on the + to add a new Receiver
-In the dialog box that popped up, I selected RTL2832U
-In the Info tab of the Receiver configuration, I chose the RTL Device but I have no idea which of the two options correlates to which of the two physical dongles
-In the Info tab of the Receiver configuration, I set the correction to the same value I determined in SDR#. I'm assuming these are the same units so that -2 in SDR# is also -2 in UT. I've also tried both calibration values (-2 and 74) since I have no idea which dongle UT thinks is which.
-In the VCO tab of the Receiver configuration, I set the Role to signal.
-In the VCO tab of the Receiver configuration, I set the Park frequency to the frequency of the control channel.
-In the VCO tab of the Receiver configuration, I set the Mode to P25 since this is an Apco P25 system.
-In the VCO tab of the Receiver configuration under Listen, I de-selected everything except Apco P25.
-In the VCO tab of the Receiver configuration under Listen, I selected logging
With this setup, when I click Run/Start, I get static from the computer speaker but UT doesn't do anything. Where am I going wrong?
-I've installed and started Unitrunker
-I've clicked on the + to add a new Receiver
-In the dialog box that popped up, I selected RTL2832U
-In the Info tab of the Receiver configuration, I chose the RTL Device but I have no idea which of the two options correlates to which of the two physical dongles
-In the Info tab of the Receiver configuration, I set the correction to the same value I determined in SDR#. I'm assuming these are the same units so that -2 in SDR# is also -2 in UT. I've also tried both calibration values (-2 and 74) since I have no idea which dongle UT thinks is which.
-In the VCO tab of the Receiver configuration, I set the Role to signal.
-In the VCO tab of the Receiver configuration, I set the Park frequency to the frequency of the control channel.
-In the VCO tab of the Receiver configuration, I set the Mode to P25 since this is an Apco P25 system.
-In the VCO tab of the Receiver configuration under Listen, I de-selected everything except Apco P25.
-In the VCO tab of the Receiver configuration under Listen, I selected logging
With this setup, when I click Run/Start, I get static from the computer speaker but UT doesn't do anything. Where am I going wrong?