red8
Member
I need some assistance from my neighbors in the Lone Star. I am wanting to program the P25 channels on my 396 T. How does one go about doing it?
The DPS's own VHF system is conventional. In some areas they use the local or regional trunked systems.Its not a system...TX DPS is a conventional P25 thang!
I don't know if anything is patched. None of those systems are anywhere near me.Do they use the local/county system exclusively or are comms patched to/from the VHF P25 channels?
For areas where they are using the local trunked system, I have not run across patches over to the P25 Vhf conventional channels. The one I hear most often is the Parker County TRS. You may hear DPS units on that system, but not simultaneously with the Vhf channels dispatched out of Mineral Wells, sometimes using the Aledo repeater (for DPS). It's either one or the other, but not both systems. I know that DPS Tyler has talkgroups on TxWARN P25, but I'm much too far away to verify what they are using. DPS also has talkgroups on FWRRS and the new Denton Phase II system, but again I am not in range to hear all traffic. I can't say whether they simulcast in the Houston area, or Austin, though DPS has talkgroups on systems in those areas.Do they use the local/county system exclusively or are comms patched to/from the VHF P25 channels?
I do, occasionally, hear traffic on the DPS talkgroups out of Tyler, when one of the units gets far enough west to affiliate with the Kaufman TxWARN tower. But I'd be well out of range of any of the Tyler/Smith County area Vhf frequencies.OOPS....TXWARN up in Tyler!
For the 396T, either program the Vhf channels for the area of interest, or simply enter the Statewide Channel plan. That may look like a boatload of channels, but it's really not. If you look more closely, you'll notice that there are four base frequencies, and a group of mobile repeater frequencies. But if you look more closely, you'll see that the large number of Mobile Repeater frequencies is really only a handful repeated numerous times, but with different NAC codes assigned for them depending on location. Since the 396T cannot make use of NAC codes (that came with the 396XT and the old PSR500/600), enter only the unique frequencies. Leave the tone field set to none. Do not use "Search" as the scanner will treat the frequency as being analog, and look for a PL tone or DCS code.I need some assistance from my neighbors in the Lone Star. I am wanting to program the P25 channels on my 396 T. How does one go about doing it?
For areas where they are using the local trunked system, I have not run across patches over to the P25 Vhf conventional channels. The one I hear most often is the Parker County TRS. You may hear DPS units on that system, but not simultaneously with the Vhf channels dispatched out of Mineral Wells, sometimes using the Aledo repeater (for DPS). It's either one or the other, but not both systems. I know that DPS Tyler has talkgroups on TxWARN P25, but I'm much too far away to verify what they are using. DPS also has talkgroups on FWRRS and the new Denton Phase II system, but again I am not in range to hear all traffic. I can't say whether they simulcast in the Houston area, or Austin, though DPS has talkgroups on systems in those areas.
Now, the exception here in the Dallas Metro area is when DPS 101, the copter based at Mesquite's airport, gets involved with one of the local agencies on either a suspect hunt, or a chase, I have heard him patch several systems together. The applicable TRS (Garland or Mesquite are the most common), the DPS dispatch, and sometimes a third one, such as Dallas County S.O. But that is not a common, daily, process, just during some sort of incident where air support has been requested from DPS. DPS 101 regularly will specify that they are simulcasting when this occurs.
You're probably correct on that. But they execute that very well, coordinating multiple agencies involved in the incident.Technically DPS101 doesnt patch the channels.
What he is doing is simultaneously transmitting on different radios.
So you will hear them talking at once to multiple agencies, the agencies responding are still only on their respected systems and not being patched through to the others. . I have been very impressed with them each time i have heard a chase or foot pursuit and how well he handles the radio traffic and the professionalism.
The helo can TX and RX because they have multiple radios in the helo and he can select which ones they want to transmit on and receive on individually.
I have hard them on Garland, Mesquite DPD 2 and DSO at the same time.
My guess is they have 2 700/800 trunking radios, 2 UHF and 2 VHF along with the normal Air band radios. But thats my guess. Id love to see the set up one day.
back to the original thread.
Yes and no. In the Houston and Austin regions, as well as the RGV, the dispatcher multicasts across VHF and the trunked talkgroups but they are not patched. This seems to be a statewide SOP and I wouldn't be surprised if all of the regions were set up this way. In regions where trunking is used the majority of mobile/portable traffic will be on the trunked side.For areas where they are using the local trunked system, I have not run across patches over to the P25 Vhf conventional channels...
Yes and no. In the Houston and Austin regions, as well as the RGV, the dispatcher multicasts across VHF and the trunked talkgroups but they are not patched. This seems to be a statewide SOP and I wouldn't be surprised if all of the regions were set up this way. In regions where trunking is used the majority of mobile/portable traffic will be on the trunked side.
Multicasting across multiple VHF conventional channels and trunked talkgroups simultaneously is not uncommon either.
I have not caught that when monitoring, but I cannot monitor the P25 system from home. I only hear it when I visit friends out in Stephens County, passing through Parker County, and sometimes listening to the system while out there. Apparently, I was not listening (or perhaps not looking at the scanner display) at the right time.Steve,
They do simulcast across the Parker County P25 as well as I only hear the Mineral Wells dispatcher. I dont think ive actually heard a trooper on thr p25 system. Every once and a while you will hear Parker County make a all call for a Trooper on the DPS TGs.