Bell County

Status
Not open for further replies.

Wes

Member
Premium Subscriber
Joined
Dec 13, 2000
Messages
253
Reaction score
33
Location
Austin, Texas
Bell County calls their dispatch "Center." Also, FYI, Bell County SO units run in the 2200 range -- so if you hear 2241 calling "Center," you've likely found a BCSO talkgroup.
 

Ensnared

Member
Premium Subscriber
Joined
Jan 24, 2004
Messages
4,711
Reaction score
752
Location
Waco, Texas
Now, We're Talking

Bell County calls their dispatch "Center." Also, FYI, Bell County SO units run in the 2200 range -- so if you hear 2241 calling "Center," you've likely found a BCSO talkgroup.

Yes, I previously mentioned within this thread I suspected such. Then, I got to thinking. Since I have worked with MCOT workers, I have heard the Mental Health Deputies (green shirts and khaki pants) keying up and saying "center", but I was thinking "Center" was referring to the Justice Center off of Loop 121.

In other words, with the exception of Temple, all dispatch transmissions come from "Center." In Waco, both city and county dispatches work off the same console. Well, that is what I've been told.

Thanks for clearing this up.

So, if you are in one of the cars and they key up, provided you've programmed all of the system frequencies into your scanner, see what talk group comes up on your radio. Then, please submit such to the RR DB.

So, I am going to try a proven method once again. When I hear a radio transmission, I will attempt to go see what unit is transmitting. Of course, this takes time.
 
Last edited:

Wes

Member
Premium Subscriber
Joined
Dec 13, 2000
Messages
253
Reaction score
33
Location
Austin, Texas
Killeen and Belton have their own dispatch as well as Temple. It's the small towns, the sheriff's office, and the state officers on LE 1, being dispatched by BCSO "Center." And Center refers to the communications center off of 190 in Belton.

Yes, I previously mentioned within this thread I suspected such. Then, I got to thinking. Since I have worked with MCOT workers, I have heard the Mental Health Deputies (green shirts and khaki pants) keying up and saying "center", but I was thinking "Center" was referring to the Justice Center off of Loop 121.

In other words, with the exception of Temple, all dispatch transmissions come from "Center." In Waco, both city and county dispatches work off the same console. Well, that is what I've been told.

Thanks for clearing this up.

So, if you are in one of the cars and they key up, provided you've programmed all of the system frequencies into your scanner, see what talk group comes up on your radio. Then, please submit such to the RR DB.

So, I am going to try a proven method once again. When I hear a radio transmission, I will attempt to go see what unit is transmitting. Of course, this takes time.
 

Ensnared

Member
Premium Subscriber
Joined
Jan 24, 2004
Messages
4,711
Reaction score
752
Location
Waco, Texas
Only The Best For Temple

Temple Fire Facebook post about switching. Any comments about it?

https://m.facebook.com/903876583037...6583037209/1578679128890281/?type=3&source=57

As I have stated, I worked with Temple PD & Fire on several occasions while working at MHMR. I would imagine a month-long seminar would be in order to teach them how to turn the radio on.

Yes, when the rest of Bell County was getting by with analog radios, Temple PD was using PV. They are "special."

I once witnessed Temple PD and FD deal with a bomb threat at MHMR. Everyone evacuated the building after this threat with the exception of a female therapist in a wheelchair on the 3rd floor fire escape. I witnessed Barney Fife call out from the fire escape, "does anyone have a key to this door?" To this very day, during fire drills, she still sits out on the fire escape. So, the Fire Chief might need to be made aware of this situation.

Hopefully, Temple PD will be next in line so that they can make a fashion statement with matching radios and uniforms.
 
Last edited:

Ensnared

Member
Premium Subscriber
Joined
Jan 24, 2004
Messages
4,711
Reaction score
752
Location
Waco, Texas
Update

I am starting to question the accuracy of what I created using the 50+ method. I added 50 to KPD Tac 1. This resulted in a talk group of 50291. On this talk group, I was listening to marked and unmarked units attempting to apprehend someone using a perimeter. They kept referring to a "target vehicle."

The address was in Killeen, Texas, but they kept referring to "center" during their transmissions. If adding 5 or 50 to existing EDACS talk groups produces an accurate listing of P25 frequencies, why am I hearing "Center" on a KPD channel?

I thought I'd isolated Pursuit 1 on Bell P25; however, when I went back to listen, it was EDACS analog.

Back to the Bell County recordings.

Onward through the fog.
 
Last edited:

Ensnared

Member
Premium Subscriber
Joined
Jan 24, 2004
Messages
4,711
Reaction score
752
Location
Waco, Texas
Thanks

Well, I see where someone has updated the DB for Bell County P25. Let's hope others can submit to get this finished. Bravo.
 

Ensnared

Member
Premium Subscriber
Joined
Jan 24, 2004
Messages
4,711
Reaction score
752
Location
Waco, Texas
OCU?

Yesterday, I monitored and recorded an interesting talk group. Using the 50+ method, I found traffic on what appeared to be KPD OCU. This involved narcotic surveillance. The streets involved suggested that the traffic originated in Killeen; however, since no channels or agency was mentioned, I could not identify this channel as KPD OCU or a tactical channel in Bell County. I will continue to monitor in case they drop their guard. This operation involved marked and unmarked units.
 
Last edited:

Project25_MASTR

Monitoring
Joined
Jun 16, 2013
Messages
4,828
Reaction score
1,414
Location
Texas
I got a chance to sit down and have lunch in Belton today on the way back form a customer's. Pulled out the computer and began running Unitrunker.

Here's what is being reported by the active control channel (858.4625).
CQPSK modulation (Simulcast)
Site: A
RFSS: A
NAC: 014
SID: 00A
WACN: 924D5
MFID: M/A-COM (Harris)
Registration Required: Yes

Phase 2 capable

Control Channel:
858.4625

Alternate Control Channels:
855.4875
856.4625
857.4625
858.0375
858.7375
859.4625
859.7375

No peers (typical of simulcast systems)

Band Plan:
1 - 851.0000 12.5 kHz FDMA
9 - 851.0000 12.5 kHz TDMA

In the time (20 minutes) I sat and logged activity, 16 channels were active. Didn't really look at active talk groups...was really just concerned with getting the operation specifics of the system itself.
 

Ensnared

Member
Premium Subscriber
Joined
Jan 24, 2004
Messages
4,711
Reaction score
752
Location
Waco, Texas
Thank You

I got a chance to sit down and have lunch in Belton today on the way back form a customer's. Pulled out the computer and began running Unitrunker.

Here's what is being reported by the active control channel (858.4625).
CQPSK modulation (Simulcast)
Site: A
RFSS: A
NAC: 014
SID: 00A
WACN: 924D5
MFID: M/A-COM (Harris)
Registration Required: Yes

Phase 2 capable

Control Channel:
858.4625

Alternate Control Channels:
855.4875
856.4625
857.4625
858.0375
858.7375
859.4625
859.7375

No peers (typical of simulcast systems)

Band Plan:
1 - 851.0000 12.5 kHz FDMA
9 - 851.0000 12.5 kHz TDMA

In the time (20 minutes) I sat and logged activity, 16 channels were active. Didn't really look at active talk groups...was really just concerned with getting the operation specifics of the system itself.


Thank you so very much for the information you submitted. If you submitted the information for the new system, how did you figure out the agency involved when they were talking? I have seen a screen like Pro96. Hence, I know what type of system you are using, but did it also show information about who was talking?

As I have stated, I can't seem to get the Unitrunker to work anymore.
 

nd5y

Member
Joined
Dec 19, 2002
Messages
12,646
Reaction score
4,999
Location
Wichita Falls, TX
I determine "who is talking" by collecting and reviewing radio IDs and the talkgroups they appear on. Depending on how big the system is and how it is administered RID ranges could narrow it down to cities, departments or groups in a department and tell you who uses encrypted talkgroups.
 

Ensnared

Member
Premium Subscriber
Joined
Jan 24, 2004
Messages
4,711
Reaction score
752
Location
Waco, Texas
TxWarn

LOL. Back in the analog days, when I still owned a Regency MX7000, I remember having around 200 pages of frequencies listed on a computer paper. This list came from two enthusiast, one who worked with Shadow Traffic in Houston. The other person involved ran a stereo and scanner store in the River Oaks section of Houston. I cannot recall what they called it back then, but I think it was Starcom.

This eventually morphed into a massive statewide trunking system called TxWarn. When I think of all the work that went into creating this DB, it blows my mind. Luckily, the Bell P25 system is much smaller.

Today, I am going to sit here in my recliner while attempting to get this Unitrunker working on a known system. Then, if my pea-sized brain will allow, I will generalize these learned techniques to the Bell System.

One question still remains, which I have recorded on my 436HP, "why does KPD frequently say, "center" when talking to dispatch? If they are being dispatched from a console separate from other LE agencies, why use this term and not Killeen? But, Killeen is an odd little duck.
 
Last edited:

Ensnared

Member
Premium Subscriber
Joined
Jan 24, 2004
Messages
4,711
Reaction score
752
Location
Waco, Texas
Decode Success

Another listener, thank God, swooped into the area & pulled out a magic trick. He was able to analyze the Bell P25 system with great success. He watched the activity & submitted said information to the RR DB. I am very happy to see some talk groups on the page.

Therefore, I am going to follow suit now that I was able to activate Pro96.com here in Waco. I managed to pull up the P25 system in Waco without any problems whatsoever. Of course, I had 5 bars showing when this occurred.

However, this hasn't been the case in the Bell County area. It has been about one month since I attempted to analyze the system. Perhaps, the system was not ready when I attempted.

Hence, I now know that I am capable of setting up Pro96.com.

When I return to Morgan's Point on Monday, I will be attempting another analysis. Let's see if this system responds as well as one that has been in operation for a long time, Waco P25.
 

Ensnared

Member
Premium Subscriber
Joined
Jan 24, 2004
Messages
4,711
Reaction score
752
Location
Waco, Texas
Emulation

I got a chance to sit down and have lunch in Belton today on the way back form a customer's. Pulled out the computer and began running Unitrunker.

Here's what is being reported by the active control channel (858.4625).
CQPSK modulation (Simulcast)
Site: A
RFSS: A
NAC: 014
SID: 00A
WACN: 924D5
MFID: M/A-COM (Harris)
Registration Required: Yes

Phase 2 capable

Control Channel:
858.4625

Alternate Control Channels:
855.4875
856.4625
857.4625
858.0375
858.7375
859.4625
859.7375

No peers (typical of simulcast systems)

Band Plan:
1 - 851.0000 12.5 kHz FDMA
9 - 851.0000 12.5 kHz TDMA

In the time (20 minutes) I sat and logged activity, 16 channels were active. Didn't really look at active talk groups...was really just concerned with getting the operation specifics of the system itself.

Well, you have certainly demonstrated that you know how to operate Unitrunker. Hence, I will hook up my PSR 500 next week to see if I can also obtain the stream of data you reported.

Please, tell me where you located when your analysis took place. I was previously working in Morgan's Point close to Belton lake. If I need to move to a different location with increased power, I will get up and go.

I now know it was not a crossfire between my two working neurons.

Resting now.
 

Ensnared

Member
Premium Subscriber
Joined
Jan 24, 2004
Messages
4,711
Reaction score
752
Location
Waco, Texas
Positive Hit

Today, I submitted TG 51186 as being Temple PD Tac 1. This was obtained by using the 5 or 50 plus method. However, this submission was based on actual radio traffic identifying the talk group as Temple PD Tac 1. This is showing PTO on the screen, not P25.
 
Last edited:

Ensnared

Member
Premium Subscriber
Joined
Jan 24, 2004
Messages
4,711
Reaction score
752
Location
Waco, Texas
ID Numbers

I determine "who is talking" by collecting and reviewing radio IDs and the talkgroups they appear on. Depending on how big the system is and how it is administered RID ranges could narrow it down to cities, departments or groups in a department and tell you who uses encrypted talkgroups.

Since it has already been established that KPD Dispatch is TG 50289, I made note of the associated Unit ID number. It was 108498116. Using this method, I found this number repeating in several talk groups today.

One of the talk groups, 50294, was also heard with the aforementioned unit number, 108498116. However, the description did not fit what I was hearing. By adding 50 to the EDACS DEC, this should be KPD SWAT 1; however, I was hearing traffic about watching video feeds, telling marked units to leave the area due to active surveillance. Since I don't know, this one will be delayed in submission until further information can be obtained.

Today, I observed the aforementioned unit ID appearing in talk group, 50291. Of course, this corresponded to DEC 291 on Bell Co EDACS, listed as KPD Tac 1. The radio traffic identified this TG as such.

I will be submitting this one today.
 

Ensnared

Member
Premium Subscriber
Joined
Jan 24, 2004
Messages
4,711
Reaction score
752
Location
Waco, Texas
Two Systems?


I am getting a bit confused here. I have programmed and submitted what I believed to be the operating system for the new Bell County P25, but then I saw this change in a license. Most of these are 700 mhz.

Someone sent me a view of the 19 frequencies and I programmed them. I am hearing talk groups, but this new information is a bit confusing. There used to be a Bell P25 700 MHz interop license.
 

Ensnared

Member
Premium Subscriber
Joined
Jan 24, 2004
Messages
4,711
Reaction score
752
Location
Waco, Texas
Monkey Scratches Head

I am a bit perplexed regarding the post about the other Bell license. It shows to be 700 MHz, but there are clearly 800 MHz frequencies listed.

I recall the insanity experienced when Woodway worked on their system. They kept changing frequencies, added new ones and removed others. Finally, they went to a frequency auction in Galveston to obtain marine band frequencies which they use to this very day.

Is it possible that the new Bell P25 is taking frequencies from one license and putting them into the P25 system to make it work better?
 

nd5y

Member
Joined
Dec 19, 2002
Messages
12,646
Reaction score
4,999
Location
Wichita Falls, TX
I am a bit perplexed regarding the post about the other Bell license. It shows to be 700 MHz, but there are clearly 800 MHz frequencies listed.
Those are repeater inputs.
For the 700 MHz public safety band: 769-775 MHz is repeater outputs, 776-805 MHz is repeater inputs. (user radios have +30 MHz offset)

For the 800 MHz band: 851-869 MHz is repeater outputs, 806-824 MHz is repeater inputs. (user radios have-45 MHz offset)

Is it possible that the new Bell P25 is taking frequencies from one license and putting them into the P25 system to make it work better?
Yes its possible. Public safety trunked system can have 700 and 800 MHz frequencies in the same system and have multiple licenses.
 
Status
Not open for further replies.
Top