Remain silent until alerts, then open

[NCFire11]

Question.. Won't let me change the title and don't want to keep starting new threads...


I have a P25 P2 VHF system set up.

I will primarily use two knobs in one zone.

Knob 1 is the Selective call zone. I believe I have configured it correctly with Trunking TG -Scan, sub group binding, etc. I only have 1 TG in the priority list, and under sub group setting i have that TG with the tones checked beside it, with alternatives unchecked.. In the revert list I have that same TG as priority with "alternatives" checked as well as the TAC channels as non-priority, with no tones assigned.

I've watched every video I can find on programming this as it is quite a learning curve coming from analog Minitors.

My goal here is for the pager to be silent until it receives the two tone pair on the dispatch TG and after it alerts it will open back up to that dispatch TG as well as the TAC channels. Does this appear it will work?

What changes do i make for Knob 2 to have all of those talkgroups open without the need for an alert but still alert upon the correct pair of tones? I removed the binding but it also removes my ability to add the tone pair needed to the dispatch channel.
-EDIT for this, I copied the groups from the normal position to the revert position and simply checked alternatives on the disp channel.

Also- What is the best way to handle announcement talkgroups? I originally had them programmed in as their own TG but now see that theres an option for them under the talkgroup lists. Harris System.


Thanks in advance.

 

[NCFire11]

Having difficulty getting it to alert. If someone can PM me an email address to check my programming I'd greatly appreciate it.

 

[NCFire11]

I'm getting some alerts, it works sometimes but it is about 50/50 on whether it will alert or not.

I'm using the tone that has been used for 20 years(524.6/483.5). My concern is that on the group ID setting page where I input the tones is that it is too close to the edge of those ranges. The 524 tone is in the middle of it's set but the 483.5 is right on the edge of the 453.2-484.3.

 

[AK9R]

Won't let me change the title and don't want to keep starting new threads.

We don't allow users to edit thread titles. And, we'd rather you start a new thread than hijack a thread, even your own, with a completely different topic.

 

[NCFire11]

Funny how different forums have different preferences. Some prefer users moderate themselves more while some are over moderated. Thanks for the edit.

still having difficulty. I believe it’s something to do with how the system uses an announcement group when dispatching both fire and EMS at the same time.

 

[mdsxfire]

which TG is the one the tones are sent out on? i noticed u have no TGID assigned for “FC EMS” if that is ur dispatch Tg it’s not assigned to listen to any TG on the system so it’s not going to alert
and is it a phase 1 or 2 system

 

[NCFire11]

the tones are sent out on TG100(EMS disp). And the EMS tone is selected under subgroup for Tg100. It does alert sometimes just not reliably. I programmed it following both text and video guides and it stated to leave the Talkgroup ID blank for the talk group that the tones are placed on, and then to select them under subgroups.

I seem to have more reliable alerts when the announcement group is not used. The announcement group(TG101) is used only when an incident requires response from both fire AND EMS. This county does pre alerts, so you’ll have an annoucement on group 101. The tones play on the respective talk groups, and then the call is dispatched on the announcement group again. The subscriber radios pick the traffic up but a scanner and the unication require programming of that announcement group or you’ll only hear the tones played and no radio traffic if you were parked on either fire or EMS disp.


I’m not sure why it is affecting it as the tone it’s looking for is still being played on the dispatch talk groups.


I’ve always programmed the announcement TG as it’s own TG on scanners but the unication does have a place to put an announcement ID but I can’t find much documentation on how or when to use it.

 

[NCFire11]

I've recorded the tones played over the air with my SDS200 and determined that the ToneA/B frequencies are nearly spot on with the frequencies I have on file. A couple hz off but well within the ranges set by the Unication. The format is 1.2s/3s instead of the normal 1s/3s.

Do these parameters look ok? Can someone explain the two gap settings a little better for me?