Unitrunker EDACS Control Channel Changing

[owtlawatv]

Not sure were to really post this, so if its in the wrong forum, I apologize beforehand.

For years I have had a Pro-96 Digital Trunking scanner. I programed it when I got it and never really messed with it too much as our local system has not changed.
Recently I thought I would get into SDR USB Dongle Scanning to see how it was.

I have realized that I can not follow the system for more than a few hours to a day or so without having to change the control channel.
For some reason, the control channel moves to 3 different frequencies so far.

I guess my Pro-96 just monitors all the frequencies for the control channel if it changes.

Is this normal for an EDACS system to do this...? This EDACS is mostly analog.
Here is a link to the system in question: System ID 17

If anyone can shed some light on this it would be great. Im trying to get into something new here for me, but I can not be changing the control channel all the time as I broadcast the feed.

Thank You for reading my long winded post.

 

[GTR8000]

Yes, it's normal for control channels to rotate, particularly on older systems such as EDACS and Motorola Type II. What version of Unitrunker are you using? Later versions were able to "chase" the control channel as it rolled, as long as you had all of the frequencies that were control-capable flagged as such.

 

[owtlawatv]

I am using Unitrunker V2.
Of I seen the chase option and I had it selected, but I didnt mark the frequencies control..
I will do this.

Thank you for your help.

Matthew

 

[GTR8000]

You need to mark the frequencies as control capable yourself for EDACS systems, none of that info is sent over the air, and the software doesn't know what to "chase" without them flagged.

Go to the Channels tab, and click the padlock icon to "unlock" the rows for editing. Now check the Control box for each frequency you know is capable of operating as a control channel. If in doubt, just mark all of them. Click the padlock icon again to lock editing.

Now go back to the signal VFO and enable chase. Next time the control channel rolls, the program should follow it.