American Electric Power (AEP) P25 WACN 92715

mtindor

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Nice! I wondered whether TDMA = phase 2 and FDMA = phase 1. All this time I just assumed I wouldn't be able to pick them up. Appreciate the responses, thanks!

Yes, T Next to the site name means it is a TDMA control channel, just as T in the mode column of the talk groups indicates it is a phase 2 talk group. At this point in time it seems most phase 2 systems have an FDMA control channel, with the rare exception of a few wide area power systems built with L3 Harris hardware such as AEP and Duke energy
 

mtindor

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Imagine an outage in an area not covered by the TRS, where you can't predict the outage and location 10 days in advance (which is basically any/all outages).

(7) At least 10 days prior to operating, AEP must notify all co-channel licensees within 113
kilometers (70.21 miles) of those areas in its service territory where use of the waiver
may be required

LOL.
 

mtindor

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Robbie1984

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You guys over there a very lucky that AEP are going P25 and building it out whilst still making it monitorable here in South Australia SA Power Network formerly ETSA Utilities migrated from their straight analogue VHF high band system which included crossband UHF high band channels about 7 years ago to the SA-GRN and have 28 allocated fully encrypted talk groups for their communications
 

mtindor

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You guys over there a very lucky that AEP are going P25 and building it out whilst still making it monitorable here in South Australia SA Power Network formerly ETSA Utilities migrated from their straight analogue VHF high band system which included crossband UHF high band channels about 7 years ago to the SA-GRN and have 28 allocated fully encrypted talk groups for their communications
That is a shame. Very useful to be able to know what is happening during an outage. at least I think so. There is another multi-state Utilities system here in the states, Duke Energy -- they switched to P25 Phase II (or are still working on it) over the course of the past couple of years, and everything thus far is 100% encrypted.
 

Robbie1984

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Definitely very handy to keep track of then when they were on VHF especially during outages when my father was alive he use to do contract electrical work for ETSA before retiring he had a 10 ch scanner in his work bus that consisted of the local emergency channels as well as etsas work channel so he had an idea of what was happening if called up
 

mtindor

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Definitely very handy to keep track of then when they were on VHF especially during outages when my father was alive he use to do contract electrical work for ETSA before retiring he had a 10 ch scanner in his work bus that consisted of the local emergency channels as well as etsas work channel so he had an idea of what was happening if called up

A lot is done over data terminals now, so even though AEP has such a huge system, there isn't as much activity as there was years ago. and even years ago when they were on an EDACS system they used data terminals. But once they switched to the p25 system the typical voice traffic went down quite a bit. But during an outage, the trouble talkgroups are definitely active and linemen/etc are always verbally confirming with dispatch when a circuit is about to be brought online again after an outage. So, fortunately, there is still enough activity to determine what is causing the outage in my area (fallen tree took a line down, vehicle hit a pole, transformer blew up, etc).
 

Robbie1984

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A lot is done over data terminals now, so even though AEP has such a huge system, there isn't as much activity as there was years ago. and even years ago when they were on an EDACS system they used data terminals. But once they switched to the p25 system the typical voice traffic went down quite a bit. But during an outage, the trouble talkgroups are definitely active and linemen/etc are always verbally confirming with dispatch when a circuit is about to be brought online again after an outage. So, fortunately, there is still enough activity to determine what is causing the outage in my area (fallen tree took a line down, vehicle hit a pole, transformer blew up, etc).
When SA Power had their VHF system operational prior to going fully p25 encrypted they would be communicating with their linesman and patrol vehicles to see which line had a fault or was damaged this was relayed onto their depot in Mount Gambier to allocate resources however voice traffic was short and sweet not consistently active like it would be over there
 

slayer816

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SWEPCO Talkgroups Shreveport Area

5191 submitted as Shreveport Trouble (had to call their linemen out at work, saw the radio) even though it covers Bossier City.

5292 sounded like transmission trouble in TX (called "Western", then no answer, called "Dispatch", they answered and said Carthage PD reported a broken pole). Not sure what "Western" is.....

5203 sounded also like transmission trouble in Shreveport. I know it's in the db as the Lieberman PP, however they're talking about busted poles held on by a drop. At an address in Shreveport City (far away from the plant in Mooringsport).

Anyone else in the area monitoring?
 
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