RE-GROUP Talk Groups???

[doctordave]

Anyone know what the DE 800 "RE-GROUP" talk groups are to be used for? Any activity? They seem to be segregated for fire & police. Might these be TG's for patching several different talk groups together?

Dave

 

[WayneH]

Dynamic regrouping is an administrative feature that allows a dispatcher to basically force a radio or a specificd group of radios to the regroup channel. The ID is a dynamic value but sometimes gets reused.

It's just a temporary talkgroup that's created and sent to the radio for that slot in its mode list. When it receives it it automatically switches to it. The dispatcher can also lock the mode selector to this channel if need be.

-Wayne

 

[doctordave]

re: REGROUPING IDs

Wayne,

Thanks for the response. Have you actually heard any activity on these, as yet? Any idea under what circumstances they might actually get used in? Novel idea - have never heard of this w/ other 800 systems.

Appreciate your input.

Dave

 

[hai_akeeba]

Have not heard any call to switch to this talkgroup as of this time. I have all six programmed in my 250d. I guess it would be a M-A-J-O-R incident for these groups to become active.

 

[WayneH]

Regrouping happens behind the scenes over the control channel. There's no way to know it's happening unless someone mentions it over the air.

The ID could be anything so really a trunktracker is worthless unless you run software like Treport to identify the regroup event and see the ID used. Motorola radios are the only true devices that know what to do about it, place the radio id must be one specified.

Simply put, the control channel says, "hey radio 712345, use TG 801234 for your regroup channel.

Regroup is specific to a radio. One command per radio is sent. Each command includes a talkgroup ID. So multiple radios (say PD or FD) could be regrouped yet operate on two different IDs.

BUT, not a lot of systems use regrouping. The only example I can think of is the San Diego County (CA) RCS which when a radio is lost or stolen is regrouped, and then the channel selector is locked there (a software command sent to the radio). The system then transmits a recorded message on the regroup talkgroup on how to obtain a reward for the radio.

-Wayne

 

[hai_akeeba]

Wayne:
Is it possible that here in Delaware they have a different set-up?
In the TRS database for Delaware, there are 6 distinct talkgroups listed.
Three for police, three for fire. Two for each of the three counties.

 

[WayneH]

It's quite possible they use one of those when they need to regroup the specific agency. It's really a system by system thing; hard to say for sure.

-Wayne

 

[mikewazowski]

Wayne, I'm assuming the console initiates the regroup or the radio generates a regroup request which the console then approves?

I'm wondering about interagency communications with different dispatch centres but on the same system?

If both agencies, police and ems, have different dispatch centres, could they be regrouped to the same talkgroup?

I would guess that both dispatch centres would have a "regroup plan" and upon activation they would pick a common regroup channel. Both comm centres would regroup their respective radios onto the same talkgroup.

Sound about right?

 

[doctordave]

RE-GROUP TGs

I have to admit, I still find the concept a bit odd, especially when there are so many mutual aid TGs already programmed into the system. It would seem that console-directed changes (re-grouping) of talk group assignments for field units would only add some element of confusion during a major incident. I will be curious to see if there will be any use of these during the apparent upcoming bio-terror drill.