I'm hearing what sounds like Dallas County Constables on 35081.
Dallas Fire - Trunked System Rollout 2022
- Thread starter CodeYeti77
- Start date
That talk group was patched with 35154 earlier, also, patched to the Constables 154.65 VHF conventional channel.
Last night i was hearing 33101 and it sounded overmodulated, like it was being patched. Was not able to identify an agency though and and it was not very active. This was around 7 last night.
I've been hearing public works type traffic on there, but haven't found a corresponding conventional channel with the same traffic. I guess it could be patched to one of the analog trunked system channels. "12##" units, mention of school flashers, tree trimming, etc.. Addresses all seemed to be within Dallas city limits, but I haven't been able to nail anything down.
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I was in dallas today i didn't hear anything on my SDS100
I was on North Texas Interoperable Radio Network
33101 is patched to talk group 9712 on the Motorola Type II system, which I have as "Signals Disp 1C".
That fits. I heard several calls for yellow or green lights out at certain intersections. Also heard a call for visibility problems with one light. One near down town in old east dallas and another in NW Dallas.
What channels are they working on
Ill have to confirm tonight but i want to say i saw them on layer 3-2
I can also confirm this patched TG 33101 is on Layer 3(2) which is labeled "Dallas Simulcast" - 800m freqs.
My previous post on July 7 was referring to Layer 3(1) which is labeled "Dallas 1" - 700m freqs. In early July, Dallas 1 was active on TG 31011 with multiple fire tone outs, including the classic "Squad 51" tone. Other TGs heard with radio tests were 31014, 31024, 31071, 32001, 32021. Lately, TG 40000 has been the only thing showing up with just key ups.
Just a WAG, but I would say Dallas 1 would be the system to look at for future public safety use...
My previous post on July 7 was referring to Layer 3(1) which is labeled "Dallas 1" - 700m freqs. In early July, Dallas 1 was active on TG 31011 with multiple fire tone outs, including the classic "Squad 51" tone. Other TGs heard with radio tests were 31014, 31024, 31071, 32001, 32021. Lately, TG 40000 has been the only thing showing up with just key ups.
Just a WAG, but I would say Dallas 1 would be the system to look at for future public safety use...
One thing I've noticed, over the past few weeks, is a larger than usual number of DFR units advising '660' to put them out of service for training. Now, training in and of itself is not unusual for public safety agencies. Periodic training, whether as a refresher for older members, or familiarization for newbies who have been assigned to their station, is common. But, in the past, you'd hear a specific unit (engine or truck company) request to go out of service, and that they were enroute to the drill tower (the training & maintenance facility on Dolphin Rd.), Later, one or more hours later, they would 'clear' from the drill tower, & go back in service as they headed back to their assigned station.
What is different from what I usually hear is that apparently these units never left their station for 'training', and quite often, they would be checking back in service in an hour or less. On occasion, when there is a structure fire in their first alarm district, they will clear from training very quickly & ask to be assigned to the box.This makes me curious as to whether the 'training' may be for orientation on the upcoming switch to the new trunked system. There will be somewhat of a learning curve, since up to now, Dallas Fire Rescue has primarily used conventional channels. While there are a handful of DFR talkgroups on the city's analog trunked system, these have been used for special events, not everyday fire or EMS response. So far, I have not heard one of them state that they will be out of service while the radio shop does an equipment switch (or reprogramming).
What is different from what I usually hear is that apparently these units never left their station for 'training', and quite often, they would be checking back in service in an hour or less. On occasion, when there is a structure fire in their first alarm district, they will clear from training very quickly & ask to be assigned to the box.This makes me curious as to whether the 'training' may be for orientation on the upcoming switch to the new trunked system. There will be somewhat of a learning curve, since up to now, Dallas Fire Rescue has primarily used conventional channels. While there are a handful of DFR talkgroups on the city's analog trunked system, these have been used for special events, not everyday fire or EMS response. So far, I have not heard one of them state that they will be out of service while the radio shop does an equipment switch (or reprogramming).
Referring back to this, I was doing some searching and found a document on the NCTCOG website talking about NTIRN and the NCTCOG system, it looks like they refer to the NCTCOG system as "CONNCT" which stands for "Communications Overlay Network of North Central Texas" (news to me) - I confirmed this was the same as the NCTCOG system by the name of the talkgroups listed on the document and comparing them to a radio which had the system and identical talkgroups programmed in. (for the sake of my job, this was when the system was first put in operation)
Document Link: https://www.fortworthtexas.gov/file...ns/documents/its-radio-march2022ntirnplan.pdf (page 16)
Website Link: North Central Texas Council of Governments - North Texas Interoperable Radio Network "Interoperability Resources" PDF
Anyway, in the document it goes on to say "CONNCT is scheduled to be decommissioned by the end of 2022." - With NTIRN expanding into Dallas County I'd like to retract my previous statement and say now I'm curious as well if this is going to be a replacement for the NCTCOG/CONNCT system, granted as far as I know NTIRN doesn't have any sites in Denton (besides TMS) or Collin counties, and decommission could have a couple meanings, decommissioned as in taken offline and taken apart? Decommissioned as in taken offline and added or combined into another system? This document is dated March 1st, 2022, assuming it's still accurate and everything goes according to plan I guess we'll see here in a couple months what happens.
It makes me curious though where the current users would go if this system was taken completely offline. I would guess the Dallas Simulcast users would move to Dallas Simulcast on the NTIRN system. Not sure where the Tollway Troops would go, since they have a tollway in Fort Worth and the rest in Dallas/Collin Counties surely they'd need more than just the NTIRN Dallas Simulcast sites for proper coverage across their jurisdiction, time will tell.
I have a friend who knows some Dallas firemen. Here is what he said. This may not be all that accurate, especially the date (Dallas FR is not known to be on time when it comes to departmental changes) but it's useful nonetheless
"
"
- All channels going digital in september or october
- some channels WILL be encrypted
- most will not
- dallas getting all new APX8000XEs, APX Apparatus and station locution radios
- Locution may be changing too
Any idea if DFR will start having fireground traffic 'broadcasted' versus simplex? I'd imagine so, but I figure it would be foolish to assume. I'm also guessing they'll have actual tactical/fireground channels (versus the analog 10-12). Of course, that'll be a moot point for firebuffs (like myself) if all the fireground/tactical/whatever you want to call them channels are encrypted. Glad to see the upgrade finally on the horizon!
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While I have no inside sources or contacts, I'd bet that the fireground channels will be on the P25 system, once it is fully implemented.
Several years back (maybe ten or more), there was an on-duty death of a firefighter at a major apartment fire in Oak Cliff. Apparently, one wall collapsed on him. Someone tried to call for help on one of the simplex firegrounds, but the message was not received in a timely manner. One consequence of that incident was the realization that there was no recording possible for the simplex channels used on scenes. The attempt to deal with that was to install a radio in the back of the battalion chief's vehicle. That was supposed to be set on the fireground frequency the BC was using, and relay that to TGID 9968 on the city's LG system. That did not work, as the BC's tended to leave that extra radio unused, so no relay to the trunked system (which would have been recorded). If they do fully move those to the new P25 system, then any & all talkgroups used can be recorded for later review when needed. I can't remember hearing anything on TGID 9968 in quite a long time. No idea if that equiipment is still in place unused) or has been removed.
I haven't reviewed it lately, but I have my TRX-1 recording all activity, including new talkgroups, on the sites that will be used once Dallas & Dallas County complete their moves.
35050 is patched to DCSO VHF Info/Warrants channel. I've been putting some stuff in the wiki North Texas Interoperable Radio Network Unknown Talkgroups - The RadioReference Wiki as a scratch pad until they can be really confirmed, but there's some pretty good guesses.
