I have a question? lets just say I set up my scanner for Wash Co law & fire....I typically would would enter in the frequencies for the Wash /Dodge county towers (site 15)...BUT, what if I were to use Site 1 (Douglas CO.) , or maybe the OPPD site in Blair (site 3)?
I would like to know IF ALL the Wash county law and fire talkgroups (and radios that go with that system)...if they all affiliate with the the different primary control frequencies...especially all the OPPD sites?. I am only asking, because I was under the impression that only OPPD talkgroups (radios) would affiliate with the OPPD sites? I may be wrong about this...but my scanners only allow me to put in one site...or one primary control frequency.... and if that is true...by naming the towers with the OPPD prefix would help the average person trying to program their scanner for the correct talkgroups they want to monitor.
I don't have a problem with the OPPD Prefix - I think that's just fine and, yes, for the most part, you will only see OPPD TGs on the OPPD Sites, as this is how the people running the system have it configured.
It's also possible that some non-OPPD TGs are programmed into multiple OPPD sites. Blair and Arlington Schools have this configuration as I have heard Arlington School buses, in the Fall during HS Football season, talk back home from Falls City after the game is done. Again, it's all in how the system is setup.
I have heard *some* radios affiliate to any tower site??? ...I do no know if this is true or not...that's why i am asking? if that is true...them someone living down in Otoe County could put in site 8, (near where they live) and listen to all the wash county law and fire traffic... if that is what they wanted to do?..... I have also heard that if a radio travels lets say from Blair to Otoe County...that radio...may or may not affiliate with all the different sites that make up the ORION system?
What you wrote above _can_ happen - again, it's all in how the system is programmed and what radios are authorized to logon to which sites. NSP is a good example... In the past, I've heard Troop C HQ Dispatch on the Plattsmouth site, even though the Plattsmouth site primarily serves Troop A and HQ. Since the Troop C Trooper is apparently authorized on the Plattsmouth Site and that Troop C Dispatch TG is allowed on that same tower, the communication works without any intervention from the user.
I would like to hear from you guys and see how that all works.....I suggested the OPPD prefix for the OPPD towers to simplify it...that's all. As far as I know...each agency...even Pott county radios stick with the Pott co site (site 14).
Again, I have no problem with the OPPD prefix - just the changing of the Washington County Simulcast system name. It's a small detail, but important. And, Pott County radios probably do stay with Site 14, but if you listen to the Douglas County Simulcast system, you will a LOT of Pott County Traffic.
Also>> I have heard that the new Fremont radios have the ability to do Phase 2 (because they are newer radios) ...but since they are using the Wash county control frequency, that they are currently running Phase 2???? .... and when the wash. county radios upgrade to Phase 2 radios.. I assume they change the control frequency, or the baud rate, making it Phase 2 for that site??? Again...I am not sure how all that works.....but would like to hear from someone that knows more than an educated guess LOL
From what I've read, the Control Channel and baud rate (9600) is the same between Phase 1 and Phase 2 P25 traffic. Phase 2 is implemented on a TG basis, so the capability is now there and addition of radios which can talk Phase 2 will continue. The Control Channel change from the old frequency to the 857.18750 frequency is when Phase 2 became a possibility.
And what is the difference between "Logical" sites and "RF" sites? when I look at the different site numbers, I see they each have a different Primary control Frequency...and that is what the scanner locks on to, to decode the system.
This is MY distinction between Site 15 (logical) and the actual transmit/receive (RF) sites (Fremont, Fort Calhoun Station Hilltop, Telbasta, etc) in the system which all have the SAME frequencies and carry the SAME traffic, whatever that might be.
Site 15 is a designation in the P25 system Controllers which represents a group of RF channels, at multiple sites, which carry and handle the same traffic.
The Fremont RF site is simply a part of Site 15 - Washington County Simulcast. The Fremont site cannot carry different traffic than any of the other sites in the Washington County Simulcast system.
To suggest that the RF site, located in Fremont, is somehow unique from the others in the Washington County Simulcast system is like saying that the "Titan" site at I80/I480 is somehow different from the other sites in the Douglas County Simulcast system and that it could carry different traffic.
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