Anyone have any idea what this DMR Tier III system is in DFW, showing MOT and system ID of S10? Hearing Site S10-8 on 463.6125 in NRH, showing multiple neighbors.
Unknown Tier III Network System (S10) in DFW
- Thread starter KI5IRE
- Start date
Do you have an Amazon near you? What TGs are you seeing?
None right now. Saw one recently, but don't remember the talkgroup ID.
Has Amazon been using TIII? All of the Amazon licenses here show DMR conventional.
If you catch the CH ID for 463.6125 come across that site you are monitoring, we can do a little reverse engineering on the neighboring control channels and see which licenses jive up with them.
I saw a system with that ID in Coppell (LBJ/Belt Line area) last week come up on my SDS100 in my mobile rig but didn't capture it with DSDPlus. I'm thinking I might go park at the DFW airport observation area for an hour or two later this week and see if I can pick it up again (gotta love large airports, flat area with no tall structures, so RF comes in pretty good - but it also can attract lightning to what structures are there - I have experience with airport lightning strikes)
EDIT: Looks like Lewisville ISD has a site (licensed for non-trunked, but with Data emissions) in Flower Mound with that frequency. Looking across all their licenses it would make sense since there are a large number of single frequency sites at the various schools in the district. Something worth investigating.
EDIT: Looks like Lewisville ISD has a site (licensed for non-trunked, but with Data emissions) in Flower Mound with that frequency. Looking across all their licenses it would make sense since there are a large number of single frequency sites at the various schools in the district. Something worth investigating.
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Looking at some possibilities with the DMR Tier III LSN Calculator, using 445 MHz as a base with 12.5 KHz spacing, it yields 461.375, 461.9625, 463.6625, 464.2125, and of course the known 463.6125. These all show up as Amazon licenses although mobile on some and not repeated. Try those others and see if anything comes up. Two are in Irving, one in Abilene, one in Houston. It could be early stage rollout if its them. Just one of a few possibilities anyhow.
I did a road trip today to the airport (on a week-long staycation and needed to get out of the house for a while) - I retraced the area around Coppell where I thought I picked up this system last week, along with some other theories.
I can tell you it is not Lewisville ISD (their Capacity Plus system was detected and was confirmed still in use - I have some bits of it documented, but never finished enough detail to submit it).
I can also tell you that it is likely not Amazon. I parked by their cluster of facilities in Coppell and heard plenty of non-trunked DMR traffic on their frequencies, but no Tier 3.
So my current theory is that one of two license holders - Methodist Health System (WQFX931) in Southlake, and the second is Arlington ISD (WQQR502 and others) - both are similar distance to NRH, and both could have been possibly picked up by me last week in Coppell (I picked up UT Arlington's Hytera Tier 3 system - another of my "work in progress" systems - today on a fluke up on 121 near DNT). Both would also fit the model of a "Small" (the S in the system ID) Capacity Max system, although Methodist only shows 4 sites, which is having me lean towards Arlington ISD with what appears to be 12 sites.
The good news, if I don't get back down that way by Friday, I have a company event at Six Flags on Saturday (of course with the Rangers winning the World Series tonight I might scuttle going to the area if some of the festivities are happening at the same time) and I'll plan on taking my solar generator and laptop, so I can have it monitoring the whole time I'm there.
Hopefully we can get this pinned down to the owner, and then start properly documenting the system.
I can tell you it is not Lewisville ISD (their Capacity Plus system was detected and was confirmed still in use - I have some bits of it documented, but never finished enough detail to submit it).
I can also tell you that it is likely not Amazon. I parked by their cluster of facilities in Coppell and heard plenty of non-trunked DMR traffic on their frequencies, but no Tier 3.
So my current theory is that one of two license holders - Methodist Health System (WQFX931) in Southlake, and the second is Arlington ISD (WQQR502 and others) - both are similar distance to NRH, and both could have been possibly picked up by me last week in Coppell (I picked up UT Arlington's Hytera Tier 3 system - another of my "work in progress" systems - today on a fluke up on 121 near DNT). Both would also fit the model of a "Small" (the S in the system ID) Capacity Max system, although Methodist only shows 4 sites, which is having me lean towards Arlington ISD with what appears to be 12 sites.
The good news, if I don't get back down that way by Friday, I have a company event at Six Flags on Saturday (of course with the Rangers winning the World Series tonight I might scuttle going to the area if some of the festivities are happening at the same time) and I'll plan on taking my solar generator and laptop, so I can have it monitoring the whole time I'm there.
Hopefully we can get this pinned down to the owner, and then start properly documenting the system.
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- Jul 19, 2019
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Children's Medical Center Dallas also carries the 463.6125 under its license.
I'm not seeing that license (and I looked in both Dallas and Collin Counties, and it certainly wasn't in Denton or Tarrant Counties.
Children's Medical Center has a Multi-site Capacity Plus System in the Medical Center District, and another Single Site Capacity Plus System at the Plano "Legacy" Campus. It wouldn't be broadcasting a Tier 3 System ID. (I have a bunch of Capacity Plus systems in my incomplete folder, just due to how difficult they are to identify and map - and with moving to Van Alstyne from Frisco in 2022, I am not as close to many of them as I once was - of course if someone was interested in what I have and wanted to build upon it, they could always DM me, I'd be glad to share).
I think we can put closure to this mystery - the system @KI5IRE picked up can be confirmed to be Arlington ISD. I made it down there today and identified all 12 sites and have sufficient data to submit to RRDB (it may take a day of so for me to finish parsing into submittable data and get the LCN/LSN's calculated for what I didn't confirm in the field). In my discovery process, all 12 sites were running high gain on their transmissions, and I had to disconnect the antenna on the vehicle roof and use a rubber duck on the SDR's just to attenuate the signals enough for a clear decode. This would explain why signals from the system would show up in random places all over the metroplex.
Awesome work!
I kinda had a high suspicion that it was the AISD TIII system. I confirmed today that that Cap+ site control channels are no longer active while working down in Arlington.
I noticed about the same time that I came across this system that I was not seeing the Cap+ control channels in NRH anymore. But couldn’t confirm for myself, and wasn’t sure if maybe they had turned down the power output.
As for the UTA system, I think I have pretty much all of the LCNs figured out except for 1 or 2 of them. Maybe someone else has found all 5? Hearing some new talkgroups on the system tonight.
Do you mind PMing me the info on the AISD system so I can put in into DSD+?
I noticed about the same time that I came across this system that I was not seeing the Cap+ control channels in NRH anymore. But couldn’t confirm for myself, and wasn’t sure if maybe they had turned down the power output.
As for the UTA system, I think I have pretty much all of the LCNs figured out except for 1 or 2 of them. Maybe someone else has found all 5? Hearing some new talkgroups on the system tonight.
Do you mind PMing me the info on the AISD system so I can put in into DSD+?
I've got the LSN's (the DSDPlus assignments, not the Uniden LCN's, but will calculate them for submission) for all 5 frequencies of UTA, I've never had a solid fix on one frequency, but because the TIII methodology for calculating, I know where it should be. I will be submitting that system along with the AISD system when I finish cleaning up the data.
Likewise, watch your PM's, I'll send you the DSDPlus.frequencies file for both. It will contain my notes on neighbors, control channels, etc.
We are entering them in as LSNs now so the DSD Plus data will suffice just fine for the submission
I should add that if we enter them as LSNs or CH ID’s, the database will automatically calculate and note the Uniden LCNs as well in all our T3 systems.
That must have been a recent change, as I had to resubmit another (huge) system because I submitted LSN's and they came back as the LCN's, so I've updated my TIII template to submit both.
It is more recent, this year since spring or so. Either way will work for us though, and having both is fine.
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FCC Callsign WPCG602 (CHILDRENS MEDICAL CENTER OF DALLAS)
FCC Callsign WPCG602 (CHILDRENS MEDICAL CENTER OF DALLAS)
www.radioreference.com
I was just basing the suspicion off the 463.6125 Frequency, but you nailed it anyways so caper closed ...
For the "main" Children's Health Campus, along Medical Center Drive & next to the "old" Parkland Hospital building, I have the 5 LCNs & a little over a dozen TGIDs.
The 'second site' appears to be only one frequency, 461.725. That's located at a satellite facility, Our Children's House, on Empire Central. I have not been able to hear anything for that location. Possibly very low power, concentrated in the building.
UTSW has at least two sites, and possibly a third, that I'm trying to confirm.
The LTR systems listed in the database for Children's & UTSW are long gone.
The 'second site' appears to be only one frequency, 461.725. That's located at a satellite facility, Our Children's House, on Empire Central. I have not been able to hear anything for that location. Possibly very low power, concentrated in the building.
UTSW has at least two sites, and possibly a third, that I'm trying to confirm.
The LTR systems listed in the database for Children's & UTSW are long gone.
