Been listening the the Fort Worth Oncor P25 site most of the day, trying to identify some talkgroups. First thing I noticed is the Unit IDs are basically the last four digits of the Radio ID for most users. They rarely give addresses or location data, mostly just something like "just north of where my truck is" so they must rely on AVL quite a bit. The one address I did get was in Keller. It associated with TG 143, they were talking freely, like on a talk channel. Seems like the Talkgroups must align with their service boundaries.
ONCOR P25
- Thread starter Harold
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nd5y
Member
That and they also have different divisions like transmission and distribution and probably others.
On the EDACS system they had some type of systemwide talkgroups called Black Star. They used to do a weekly radio test I think it was on Mondays or Tuesdays between about 6-10 PM. Have you heard anything like that?
Most talkgroups are 3 digits except one, 65156 , haven't really listened hard enough to tell what kind of information is being passed, but it does stand out.
nd5y
Member
Talkgroups that start with 651xx are dynamically assigned patches. Sometimes the sites around here will have several talkgroups patched. 65535 is All Call.
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I am friends with several Oncor Contractors and one is a radio nut (like the rest of us) He works with the Sulphur Springs office and is always bugging them for a radio. One manager finally broke down and gave the guy a lecture about how they rarely use the repeaters out here because they suck! Oncor crews in the rural area have 6 simplex frequencies they do the majority of their work on. I know in the Metro this isn't the case but in rural parts the 900 just don't have the arms to make them want to use it. I don't have the gumption to search those licenses to see what they are using for simplex. Should state for mobile use. If anyone feels the need to dig into that it would be good to know.
nd5y
Member
I did that years ago. I only found 4 but there could be others.
Oncor Energy Unconfirmed Frequencies - The RadioReference Wiki
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Tom, I'll plug those puppies in and start driving into rural Texas blackout zones and see what we can Identify.
nd5y
Member
Just remember they are itinerants so Oncor isn't the only user.
There is somebody around here that uses 939.975 PL 100.0 but I was never able to determine who it is.
n5dki
Newbie
i was in a meeting today with several of the folks supporting the radio network.
they claim all talkgroups are now 100% "E".
i asked what they're hiding and they just smiled.
they claim all talkgroups are now 100% "E".
i asked what they're hiding and they just smiled.
n5dki
Newbie
i believe that might be "Black Start". it is a scenario that is tested and practiced periodically so they know what to do on a system black out.
besides massive communication coordination, the power plants will have to be restarted and totally disconnected from each other. as they come back on line, they begin to add load ( customers ) until they get near capacity. once the "generation islands" are stable, they start re-syncing where they can tie the plants back together and eventually get the system back to normal. back in the days i was involved with this, the best estimate without structural damage would take 3 days to restore the "grid". may be somewhat different now... many years have passed.
I appreciate the insight, I've attempted to do some research on where the name might've originated from but wasn't able to discover really anything. That makes more sense.
nd5y
Member
When I heard them doing the radio check they were saying "star" not "start".
Started Unitrunker on the Fort Worth site when I first read this 30 minutes ago. So far all in the clear no encrypted talkgroups logged.
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Honey Grove and Commerce are in the clear as of current time of this post. Not that there is anything of interest to hear, 65535 has some chatter ITC.
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