SDRTrunk - Ignore TG

[belvdr]

Trying to optimize my config here. Is it possible to have SDRTrunk ignore specific talkgroups entirely? For example, in the "Now Playing" tab, if I know of an encrypted TG, it would save resources if the SDR could simply ignore that TG, correct?

 

[dave3825]

For an existing system that's already in sdrtrunk, you can ignore tgs when you in your alias list, click on the said tg un if checked, uncheck both listen and record.





And for next time you download a system into sdrtrunk, check the box that says set enc to mute.

 

[belvdr]

For an existing system that's already in sdrtrunk, you can ignore tgs when you in your alias list, click on the said tg un if checked, uncheck both listen and record.

And for next time you download a system into sdrtrunk, check the box that says set enc to mute.

I've done that but it still shows in Now Playing. Guessing there's no way to stop that.

 

[dave3825]

The now playing is showing all activity that is happening on the control channel. There is no way to have it not show the events taking place. In the bottom pane however you can utilize the filtering that's there to display what you are only interested in seeing. I turn off registrations and data and it leave the bottom window much nicer.

 

[belvdr]

The now playing is showing all activity that is happening on the control channel. There is no way to have it not show the events taking place. In the bottom pane however you can utilize the filtering that's there to display what you are only interested in seeing. I turn off registrations and data and it leave the bottom window much nicer.

Oh great, that's good to know, thanks! I assumed (possibly incorrectly) that having the computer watch an encrypted connection would tie up resources, including the max channel config. That was my main concern.

 

[GTR8000]

There is currently no way to have SDRTrunk completely ignore specific talkgroups. It will tune to all voice activity, which means that yes it does use resources to some degree in doing so. It has been requested numerous times over the years to allow SDRTrunk to stop tuning to "locked out" talkgroups (similar to how we can ignore data calls), however that feature has not been implemented so far, unfortunately.

 

[astro_boy]

There is currently no way to have SDRTrunk completely ignore specific talkgroups. It will tune to all voice activity, which means that yes it does use resources to some degree in doing so. It has been requested numerous times over the years to allow SDRTrunk to stop tuning to "locked out" talkgroups (similar to how we can ignore data calls), however that feature has not been implemented so far, unfortunately.

Has this issue been resolved? I'm listening to a very busy system and i believe i'm missing calls because of this issue.

 

[mtindor]

Has this issue been resolved? I'm listening to a very busy system and i believe i'm missing calls because of this issue.

No, you can't totally avoid having the tuner tune to a frequency when a call is heard. But, if you think you are missing calls, increase the number of max channels. If you can't increase the number of max channels because you are running it on a mediocre machine, upgrade the machine

 

[astro_boy]

Thanks, I thought that might be the case. I've increased the max channels to 8 on each site and have ignore data calls enabled, thanks for the suggestions, i'll see how that goes.

 

[mtindor]

Thanks, I thought that might be the case. I've increased the max channels to 8 on each site and have ignore data calls enabled, thanks for the suggestions, i'll see how that goes.

10-4. Just keep in mind that if the site you are monitoring has N number of frequencies, you at least need to have N-1 max channels configured to ensure that you do not miss calls.

Mike

 

[astro_boy]

10-4. Just keep in mind that if the site you are monitoring has N number of frequencies, you at least need to have N-1 max channels configured to ensure that you do not miss calls.

Mike

oh really, I didn't now that was a how it should be configured.
The sites i'm monitoring have 22 voice channels, although i've never seen more then maybe 5-10 channels active at once.

 

[mtindor]

oh really, I didn't now that was a how it should be configured.
The sites i'm monitoring have 22 voice channels, although i've never seen more then maybe 5-10 channels active at once.

Yes, the "-1" is the control channel, which does not need to be accounted for. But all voice channels need to be accounted for. The likelihood of 22 voice channels being used simultaneously? Highly unlikely. But, then again, they wouldn't have bought 22 repeaters and licensed 22 freqs if they didn't anticipate that loading could get that high. As long as every one of those 23 freqs (including the CC) is within range of all of your dongles/SDR devices bandwidth, then there is a possibility that all 22 voice channels could be used at some point during some extreme event. If you don't want to miss one iota of traffic, then set max channels to 22. It isn't going to hurt anything to set it to 22 if it the system typically only has up to 8-10 simultaneous calls and your computer system can handle it. Of course, once it gets up to 22 channels the computer or SDRTrunk might crap out if one or the other (or both) don't have the resources to handle it.

If it is a Phase II P25 system, do not count each frequency twice. Only count them once, despite Phase II channels having two talkpaths / timeslots.

Mike

 

[mtindor]

Yes, the "-1" is the control channel, which does not need to be accounted for. But all voice channels need to be accounted for. The likelihood of 22 voice channels being used simultaneously? Highly unlikely. But, then again, they wouldn't have bought 22 repeaters and licensed 22 freqs if they didn't anticipate that loading could get that high. As long as every one of those 23 freqs (including the CC) is within range of all of your dongles/SDR devices bandwidth, then there is a possibility that all 22 voice channels could be used at some point during some extreme event. If you don't want to miss one iota of traffic, then set max channels to 22. It isn't going to hurt anything to set it to 22 if it the system typically only has up to 8-10 simultaneous calls and your computer system can handle it. Of course, once it gets up to 22 channels the computer or SDRTrunk might crap out if one or the other (or both) don't have the resources to handle it.

If it is a Phase II P25 system, do not count each frequency twice. Only count them once, despite Phase II channels having two talkpaths / timeslots.

Mike

Also keep in mind that I'm referring to individual sites. For instance, if you are monitoring 5 sites on one trunked system and 4 sites have 5 voice channels and one site has 2 voice channels, you don't set set max channels to 22 on all of them. You set max channels per site, based upon N-1 channels known to be active on that individual site.

I couldn't find anything in Sydney using 22 voice channels and a control channel. Not saying there isn't such a site, but you might want to look to be sure there really are 23 total channels assigned and active on that site.

And also keep in mind that even though there may be 22 channels licensed to a site, they might not all be active at a site. I guess you would know though, because if 23 frequencies were in use for a site you'd likely see 23 channels in your Channel Activity window if you let DSDPlus run long enough.

 

[astro_boy]

Hey thanks for the info, appreciate you taking the time to give the feedback.
The information on RR for sydney, is very outdated and i wouldn't rely on it.

I can confirm on Unitrunker now & after you mentioned the part about Phase II
channels that the site actually has 16 voice channels as its mixed Phase I & II.

I'll set for 16 and and monitor over time, the PC i'm running isn't too bad
and has a fair amount of memory too, i'm running 4x SDRs which will cover the site range easily.

Cheers