OHP Talkgroups
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spot2112--
OHP has several methods of communicating car to car. Which method they use is determined by the distance between cars and local protocol. In the OKC metro area, they usually use low band side three (45.220MHz).
There is an 800MHz talkaround channel (855.9875) which they call "conventional" or "conversation," but they don't use that much unless it is set up in advance. They use it a lot for conversing with the OHP airplane while looking for speeders on the interstates. The Troop A cars used it to talk car to car when they were in Lawton (with no 800MHz coverage) for Nicky Green's funeral.
Most of the patrol areas have a second talkgroup assigned for secondary communication. When they need a repeater, sometimes they will use this. Turner Turnpike units use talkgroup 42128. Turner2 is Talkgropup 42160. In this case, you would likely hear one unit say, "Go to two," or "Go to Turner 2" to use this talkgroup.
Troop A Metro Units are on talkgroup 41680. Their Channel 2 (AM-2) is talkgroup 41720. Troop A Rural Units are on talkgroup 41776. Their Channel 2 (AR-2) is 41080. I do hear that some with the Metro talkgroups, but most talk-around is on low band. That way, they can still moitor their dispatch on the 800MHz radio.
OHP also has a statewide VHF frequency that they use for car to car conversation. It is 154.935MHz. And if all else fails, they can just switch to the local Sheriff's repeater and talk there.
Confused yet?
--FAST 2
OHP has several methods of communicating car to car. Which method they use is determined by the distance between cars and local protocol. In the OKC metro area, they usually use low band side three (45.220MHz).
There is an 800MHz talkaround channel (855.9875) which they call "conventional" or "conversation," but they don't use that much unless it is set up in advance. They use it a lot for conversing with the OHP airplane while looking for speeders on the interstates. The Troop A cars used it to talk car to car when they were in Lawton (with no 800MHz coverage) for Nicky Green's funeral.
Most of the patrol areas have a second talkgroup assigned for secondary communication. When they need a repeater, sometimes they will use this. Turner Turnpike units use talkgroup 42128. Turner2 is Talkgropup 42160. In this case, you would likely hear one unit say, "Go to two," or "Go to Turner 2" to use this talkgroup.
Troop A Metro Units are on talkgroup 41680. Their Channel 2 (AM-2) is talkgroup 41720. Troop A Rural Units are on talkgroup 41776. Their Channel 2 (AR-2) is 41080. I do hear that some with the Metro talkgroups, but most talk-around is on low band. That way, they can still moitor their dispatch on the 800MHz radio.
OHP also has a statewide VHF frequency that they use for car to car conversation. It is 154.935MHz. And if all else fails, they can just switch to the local Sheriff's repeater and talk there.
Confused yet?
--FAST 2
Yes thank you as well! I was unaware some of this too! I knew Metro, Turner, Rural, and Capitol Patrol all have a channel 2 on the 800...but I was unaware of the low band stuff! Thank you!
K5MAR
Member
Not to put too fine a point on it, but the OHP VHF-lowband allocations have been around alot longer than the 800 MHz system, and are used state-wide. Any bank that you have the trunked systems in should also have the six lowband freqs in it, and probably select VHF-highband freqs as well.
Mark S.
Mark S.
GlacierClipper
Member
Many states have abandoned Low-Band frequencies and moved to 800 Mhz Trunked. A few states; such as Oklahoma and Tennessee continues to use the Low-Band. Tennessee has an excellent Low-Band system used by the THP. When the systems are kept up, they can still be very dependable systems.
peterjmag
Member
I wanted to give some info as well. Last year when OHP was involved in the man hunt in Creek County I heard their airplane talking to ground units on the nationwide law enforcment frequency (155.475). It also doesn't hurt to put the state wide car to car frequency (155.67) in your set up as well.
P.J. Maguire
P.J. Maguire
K5MAR
Member
peterjmag said:
OK, maybe I'm a bit retentive, but 155.670 MHz is not the state car to car, it is the state Intercity frequency. A quick perusal of the FCC database shows only a mobile relay (FB2) in Durant licensed to the State of Oklahoma. There are various cities and counties with mobile (and mobile relay) licenses on 155.670 MHz (I counted 30), but certainly not an extensive number. Now, this doesn't reflect what is actually practiced, I know. So it's a good idea to keep it active.
Mark S.
Just a quick question if I may.
I've got everything programmed in for OHP Troop A, and it works great.
But my scanner briefly stops on the Control Channel - 867.7500 - every cycle.
Is this normal?
If not, what should I do to keep this from happening?
I've got everything programmed in for OHP Troop A, and it works great.
But my scanner briefly stops on the Control Channel - 867.7500 - every cycle.
Is this normal?
If not, what should I do to keep this from happening?
papadoc said:
Papadoc,
What type of scanner are you using?
And just to throw this out there really quick ... you might need to set the bank's trunking mode.
I'm using the BC785D and I programmed it with ARC250.
Nuts. I do not own either.
Perhaps someone else will post that does .. or failing that you could plug this into the search engine at the top of your screen:
bc785d AND arc250
and see what you get.
Thanks anyway crayon.
I appreciate your trying to help.
I think this would be better in the Trunking Forum.
Sorry for interrupting this thread with a tech support question.
I appreciate your trying to help.
I think this would be better in the Trunking Forum.
Sorry for interrupting this thread with a tech support question.
do you actually hear the control channel when it stops on it? When trunking...my 785 stops on the CC to trunk the system...this is normal. As long as you don't hear it and it continues to scan shortly after. If the trunked bank is the only bank that is on...it will stay on the CC until there is activity. Hope this helps! And if you have any more questions...be sure and post! 
That is exaclty what's happening, foster_006.
It briefly stops on the CC but I don't hear anything.
Then immediately starts scanning again.
So this is normal.
That's good to know, because I thought I might have done something wrong.
Thank you for that info
It briefly stops on the CC but I don't hear anything.
Then immediately starts scanning again.
So this is normal.
That's good to know, because I thought I might have done something wrong.
Thank you for that info
No problem! Yep! It's normal! I'm pretty sure the reason it stops...is because it reads the CC and decodes it...and if there is activity it will take you to it. But if there is no activity on the trunking system...it will continue to scan! Speaking of activity...are you hearing things on the system that you are trunking?
I scan mutiple trunked systems in different banks and it gets kinda frustrating when I need to go to a non trunked bank....it takes me a minute to either catch it while it's scanning a non trunked bank.
I scan mutiple trunked systems in different banks and it gets kinda frustrating when I need to go to a non trunked bank....it takes me a minute to either catch it while it's scanning a non trunked bank.
Yep, that bank stays pretty busy.
So far, I've got Troop A on one bank, Edmond's trunk system on another bank,
and two conventional banks.
I think these new scanners are great.
I say that because the first scanner I had was an old 8 channel scanner.
I had to buy individual crystals for each frequency.
If I wanted to listen to something different, I had to remove one crystal,
and put the one in that I wanted to listen to.
Quite a difference between then and now.
So far, I've got Troop A on one bank, Edmond's trunk system on another bank,
and two conventional banks.
I think these new scanners are great.
I say that because the first scanner I had was an old 8 channel scanner.
I had to buy individual crystals for each frequency.
If I wanted to listen to something different, I had to remove one crystal,
and put the one in that I wanted to listen to.
Quite a difference between then and now.
I suppose so! I think the old scanners were before my time! My dad had a crystal scanner when I was growing up. I think that may have got me interested in scanners. I use to watch the little red dots go back and forth! hehe Anyways, I love my 780 and 785! The first scanner I ever owned was a RS Pro 51. So I pretty much started about the same time trunking became more of an issue. Also considering the city I lived in then was a Mot 800 type 2.
Well I think that's enough rambling out of me! If there's anything else we can help with...let us know!
Well I think that's enough rambling out of me! If there's anything else we can help with...let us know!
peterjmag
Member
I might also point out that OHP here in Tulsa (Troop B) uses what they call private calls. They show up as an I-call on Uniden scanners that have the I-call function. In fact Troop B uses them quit often. I don't know if they use them in OKC (Troop A)? Someone in the OKC metro with an I-call scanner would have to tell us that. I would be curious to know myself. I have heard that OHP doesn't know that their private calls can be monitored so they might say a few things more casual then usual and you might get more dirt. Hope this helps..Happy Scanning...
P.J. Maguire
P.J. Maguire
i'm not exactly sure how to listen to I-Calls, but I know it seems like i see it on my 780 pretty often.
Would you explain to me? Either that or direct me to a good post that it's been talked about before....
thanks!
Would you explain to me? Either that or direct me to a good post that it's been talked about before....
thanks!
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