nd5y
Member
Granbury 700 MHz P25 2 site phase II simulcast system.
Granbury 700 MHz trunked system
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L3Harris on the license as the contact. Odd to build a two site system standalone, are any of the wide area systems in the area Harris?
Looking at the two transmitter sites, and the size of Hood County overall, the simulcast will probably effectively cover the whole county.
Three systems in the DFW area are Harris:
Metrocrest
Kaufman County
and Rockwall County
Oncor is coming online with a Harris P25 system. But it's 900 Mhz.
The forthcoming Henderson County P25 system will also be Harris.
Yeah, I forgot about Oncor. But since their original system was EDACS, going to a Harris P25 is not surprising.
nd5y
Member
What are Richardson, Irving and DFW AIrport using now?
Irving is Motorola on FWRRS. I believe Richardson is Motorola as well, on their own single-site system. And DFW Airport is an EFJ system from what I have heard.
If I recall correctly, DFW Airport is using an E.F. Johnson system.
Irving is a member of the FWRRS system, which is Motorola.
Richardson, I believe, went with a relatively unknown company, Cassidian.
City of Richardson
Not exactly late breaking news ... News Release From City Council Meeting of June 13, 2011 7. Bid #49-11 – Authorized issuance of a Co-op Purchase Order to Motorola Solutions, Inc., for portable and mobile radios for the Cassidian (EADS) P25 Radio System through the Houston-Galveston Area...
I did not find it with a quick search, but i seem to recall that part of the selection process was a commitment from the vendor to open an office in Richardson. That might have been from one of the local media companies (television or newspaper) rather than a post here on RR.
Just a long shot, but is it possible that they might interconnect this system to FWRRS? Or maybe connect to the Parker Co. P25 or possibly even TxWARN? I know that LCRA just recently expanded to Brownwood, which is a Harris system as well. Just some ideas to look into..
I know FWRRS is a Motorola system, however, I have seen a few TCFA agencies using Harris portables since they moved to FWRRS.
And supposedly some of the TxWARN system is made up of Motorola, Harris and EFJ equipment.
I know FWRRS is a Motorola system, however, I have seen a few TCFA agencies using Harris portables since they moved to FWRRS.
And supposedly some of the TxWARN system is made up of Motorola, Harris and EFJ equipment.
nd5y
Member
Any P25 systems with ISSIs should be able to interconnect to eachother.
TxWARN infrastructure is all MSI. But pretty much all manufacturers are represented subscriber-wise.
Stephen
Member
Harris may be alright for commercial applications but I still do not have enough faith in them for public safety. Metrocrest, DART, and Carrollton still have lingering issues with their system. I do not have extensive knowledge of Cassidian, though Richardson has had to jump on the PAWM system a couple times for short periods due to system issues.
Has anyone been out towards Hood County recently to see if there are any control channels online yet for this new system? Last time I was in town to visit my parents in Johnson County I did not see any control channels online yet...but that was several months ago.
I was just thinking about this system and that I haven't seen anything on the forums about it in a while.
I found this Granbury city council meeting that talks about the system...even answers my previous question about the new system asking if it may end up being connected to the core of another system such as Parker Co. or NTIRN etc. like is being planned for Wise County in a few years. https://granbury.granicus.com/Docum...y_1761f10c9a4fb3b9ddd085861c261df5.pdf&view=1
Now seeing two separate FCC licenses, WRNM607, which was posted previously and licensed to the city of Granbury, and WRPJ496, which has two locations with frequencies the same as WRNM607 PLUS an addition location in Glen Rose with all separate frequencies.
Also, according to this website, the Hood County ECC will be responsible for the system. Maybe we should consider referring to it as something along the lines of "Hood County P25" until we find out the actual name.
I was just thinking about this system and that I haven't seen anything on the forums about it in a while.
I found this Granbury city council meeting that talks about the system...even answers my previous question about the new system asking if it may end up being connected to the core of another system such as Parker Co. or NTIRN etc. like is being planned for Wise County in a few years. https://granbury.granicus.com/Docum...y_1761f10c9a4fb3b9ddd085861c261df5.pdf&view=1
Now seeing two separate FCC licenses, WRNM607, which was posted previously and licensed to the city of Granbury, and WRPJ496, which has two locations with frequencies the same as WRNM607 PLUS an addition location in Glen Rose with all separate frequencies.
Also, according to this website, the Hood County ECC will be responsible for the system. Maybe we should consider referring to it as something along the lines of "Hood County P25" until we find out the actual name.
Project25_MASTR
Millennial Graying OBT Guy
Two site simulcast Vida Core is what City of Lubbock started out with.
Wise County is going to an Atlas system. DFW of course is the flagship Atlas system in the area (within spitting distance of EFJ's corporate office). City of Irving...is talking of overlaying their Astro 25 system with a second layer via ISSI from another vendor (probably the one based in Irving).
Unfortunately I'm not close enough to Granbury to find out whether or not the control channels are active.
Wise County is going to an Atlas system. DFW of course is the flagship Atlas system in the area (within spitting distance of EFJ's corporate office). City of Irving...is talking of overlaying their Astro 25 system with a second layer via ISSI from another vendor (probably the one based in Irving).
Unfortunately I'm not close enough to Granbury to find out whether or not the control channels are active.
I plan to get out that way hopefully this weekend. I have a longtime friend that moved to the southeast corner of Stephens County. If there is a control channel up & running, I'll see what I can find as to details. Planning to take my laptop. Had intended to go this past weekend, but got too ill to consider the trip.
The name they indicated they would use is GRRN, Granbury Regional Radio Network.
Granbury originally licensed two sites on WRNM607. Going way back through city council meeting minutes, they licensed the two locations to cover Granbury, while discussing with Hood County as to whether or not the county would sign on. Other comments said that, financially, they would be better off with their own system rather than joining FWRRS (which, now, is named NTIRN). I did not see any discussion on joining up with Parker County. There were comments that they had '16 other agencies that were interested in discussing joining in', without specifically naming them.
When the county decided to join, the county licensed two more sites in Hood County on WRPJ496, so it will be a 4 site simulcast. Since the third site the county licensed has different frequencies than the simulcast, and it is located southwest of Glen Rose near Chalk Mountain, I'd guess that either Glen Rose, and/or Somervell County intend to join the party. I've been through meeting minutes for Glen Rose & Somervell a few times, but I did not see any discussion on their part as to the new system, but there's no reason I can think of that the Chalk Mountain site, with a different set of frequencies than used on the Hood County simulcast, would be used for anything other than allowing Glen Rose and/or Somervell to join.
This should be a Harris system, not Motorola, based on who they said they signed the contract with.
Stephenville city council approved them joining up as well, also signing a purchase contract with Harris. Licensed one site on WRTV970. Lot of back & forth conversations with Erath County in both the county's meeting minutes, as well as Stephenville city council. Discussions on whether or not the county would join in, as Stephenville was asking, and the city also proposed a combined dispatch center for the two. Apparently, the county has decided not to participate, at least for now. If, at a later date, they change their mind, then I would expect at least one or more transmit towers to be added for coverage in the county, plus adding at least one more frequency. (Stephenville licensed only three. In the Hood County/Granbury portion, there are four frequencies.) Last notes I saw in Stephenville City Council (I think this was August) is that they 'expected construction to be complete by October'. That likely will mean only the hardware in place, Logically, it may be a month or more till the system is fully operational, radios have been issued, and presumably training on the new system.
What am I missing here. What advantage or option would Irving have to add a second layer with a different system?
Irving has Coppell on their north, as well as a few short sections along the Elm Fork of the Trinity which border Carrollton and Farmers Branch in Irving's northeast corner. Those cities are on the MetroCrest system.
DFW Airport borders Irving for some distance on the west side, and the airport uses a system not linked to anyone else at this time.
Other than those areas, once Dallas & Dallas County complete their move, all the other cities that border Irving are on NTIRN, as is Irving. So, what would the 'new layer' add that makes it worth the cost of additional equipment?
Project25_MASTR
Millennial Graying OBT Guy
I think the idea is to add additional portable "talk in" coverage with transmit redundancy via an additional layer which isn't co-located with the existing simulcast solution specifically focusing on areas where it is already an issue without having the pay the premiums of Astro 25 and GTR8000 ESS's. The biggest hurdle of course is Motorola's ISSI gateway (rumor is that the gateway price increases by a factor of 10 when you want to connect an Astro 25 system to a non-Astro 25 system).
I was out in the Hood/Erath county area almost all day yesterday. Couldn't get even a hint of a signal on any of the three sites. I'll try again in a few weeks.
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