Fayette County TRS

[ki4ask]

I'm in Forest Park all week, and have my SDS running discovery on the system. I have it avoiding all of the known TGs that ki4ask has provided.

I'm hearing traffic on TG 651, which sounds like some sort of senior transportation service? "308 to base, client is at her destination"

I wish I had saved the old fleet map and we could probably use that to help categorize some of the adjacent talk groups in the new radio system. I know the new batch of Talk Groups for the P25 started from scratch, but they probably based the groupings on the previous allocations.

 

[ThreatLevelMidnight]

I wish I had saved the old fleet map and we could probably use that to help categorize some of the adjacent talk groups in the new radio system. I know the new batch of Talk Groups for the P25 started from scratch, but they probably based the groupings on the previous allocations.

Fayette County Public Safety Trunking System, Fayette County, Georgia

Fayette County Public Safety Trunking System Profile

www.radioreference.com

You mean this one?

 

[ThreatLevelMidnight]

Results of a 24 hour discovery run on the SDS

459 - Peachtree City PD Channel 2

377 - Fire Channel of some kind. Only one transmission, referenced Truck and Squad 9

129 - Animal Control?

35 - Law Enforcement Tac - Unknown Agency

17 - FCSO Jail, Courts or Transportation

225 - Fayette County Water Department

651 - Fayette County Senior Services Transportation?

619 - Possibly BOE HVAC Techs

 

[ki4ask]

Results of a 24 hour discovery run on the SDS

459 - Peachtree City PD Channel 2

377 - Fire Channel of some kind. Only one transmission, referenced Truck and Squad 9

129 - Animal Control?

35 - Law Enforcement Tac - Unknown Agency

17 - FCSO Jail, Courts or Transportation

225 - Fayette County Water Department

651 - Fayette County Senior Services Transportation?

619 - Possibly BOE HVAC Techs

I'll add these to my list - great work digging these up.

459 - that makes sense and is probably the PCPD Tac channel, next to their dispatch channel
377 - interesting. The 3xx series of TG's are Fayetteville. Fayetteville Fire shares TG's with FCFD because the county runs ambulance service for the city too. PCFD has their own ambulance. That may be a Fayetteville Fire TAC channel, I'll see if I can find out. You said Squad 9, but Battalion 9 is Fayetteville Fire.
129 - Fayette County Marshal (already confirmed). Maybe they share it with Animal Control?
35 - Probably FCSO, not sure what though
6xx - FCBOE series of TG's. I don't think Fayette Senior Services uses county radios, because they're a separate non-profit. Maybe FCBOE was using buses to help them. I'll have to find out 651.
619 - Probably so, that matches the series

Awesome work

 

[KDT5256]

The system went quiet during the storm right when the power went down about 4:15. Not a peep since.

 

[ki4ask]

I’ve been monitoring all afternoon - no problems as far as I can hear. Lots of radio traffic before, during, and now after the storm. I’m physically located near downtown Fayetteville. I wonder if one of the towers had an outage that compromised your reception? Where are you located KDT?

The system went quiet during the storm right when the power went down about 4:15. Not a peep since.

 

[KDT5256]

I’ve been monitoring all afternoon - no problems as far as I can hear. Lots of radio traffic before, during, and now after the storm. I’m physically located near downtown Fayetteville. I wonder if one of the towers had an outage that compromised your reception? Where are you located KDT?

Braelinn Village just south of PT Parkway and Crosstown
I’m thinking that may be it. We have a good portion of the city without power, the tower is located at City Hall. I’m betting it took a direct lightning strike.
Bad news if they don’t have a back up.

 

[ki4ask]

Yeah, I’m hearing lots of PTC traffic. In fact, I’ve identified another Talk Group.

2027 - PTC Public Works

We also have a ham radio repeater on that library tower - 442.500 MHz. I’m not in range of that, but the Skywarn net is active and that links in. Are you able to hear any traffic on 442.500? (or even transmit on it if you have your ham license)

Joe

Braelinn Village just south of PT Parkway and Crosstown
I’m thinking that may be it. We have a good portion of the city without power, the tower is located at City Hall. I’m betting it took a direct lightning strike.
Bad news if they don’t have a back up.

 

[KDT5256]

Yeah, I’m hearing lots of PTC traffic. In fact, I’ve identified another Talk Group.

2027 - PTC Public Works

We also have a ham radio repeater on that library tower - 442.500 MHz. I’m not in range of that, but the Skywarn net is active and that links in. Are you able to hear any traffic on 442.500? (or even transmit on it if you have your ham license)

Joe

I am not hearing any traffic at this time.

 

[bwh]

The system went quiet during the storm right when the power went down about 4:15. Not a peep since.

This matches my experience last night, but I don't think it was storm or power related.

I live close to downtown Fayetteville and purchased my SDS100 largely on the advice of Joe, KI4ASK (a good friend and ham radio buddy). I got my scanner set up a at Christmas and along with Joe and a few others have been scanning the county P25 system and working to get an accurate talk group fleet map set up. Tracking things and nabbing new talk groups has been a lot of fun.

Yesterday I rushed home from work just as the storms started to hammer the south Metro area (I work at Hartsfield-Jackson airport). I got in around 1600, grabbed several radios, including my SDS100, and started monitoring. I was hearing P25 traffic for a short time, but at some point between 1600 and 1630 - not exactly sure when because I was focused on other things - I realized I wasn't hearing any traffic. I contacted Joe to see if he was still receiving traffic. He was, but told me that another member of our group who also scans using an SDS100 reported he was having some issues. I put it down to the weather and power outages. I hooked my scanner up to an external antenna and was able to copy Coweta County traffic with no problems, and was able to copy the Fayette County high-band tone-out frequency, so I knew the problem wasn't with the radio.

When I woke up this morning I found an email waiting for me from another member of our small scanning circle who had figured out the issue might be a missing frequency in the scan group - 853.750. Sure enough, I was missing it. Since I added it earlier this morning I'm back up and scanning the P25 system with no problems.

My suspicion is that around 1600(ish) yesterday, just as the storms were starting to hit Fayette County, someone (the Kenwood/EF Johnson contractor?) switched 853.750 in as the P25 control frequency. Since Joe's scanner, and the county's new Kenwood radios have that frequency programmed in, for them it was business as usual. But for me, without that frequency, all I heard was dead air.

Brian
W8BYH

 

[ki4ask]

This matches my experience last night, but I don't think it was storm or power related.

I live close to downtown Fayetteville and purchased my SDS100 largely on the advice of Joe, KI4ASK (a good friend and ham radio buddy). I got my scanner set up a at Christmas and along with Joe and a few others have been scanning the county P25 system and working to get an accurate talk group fleet map set up. Tracking things and nabbing new talk groups has been a lot of fun.

Yesterday I rushed home from work just as the storms started to hammer the south Metro area (I work at Hartsfield-Jackson airport). I got in around 1600, grabbed several radios, including my SDS100, and started monitoring. I was hearing P25 traffic for a short time, but at some point between 1600 and 1630 - not exactly sure when because I was focused on other things - I realized I wasn't hearing any traffic. I contacted Joe to see if he was still receiving traffic. He was, but told me that another member of our group who also scans using an SDS100 reported he was having some issues. I put it down to the weather and power outages. I hooked my scanner up to an external antenna and was able to copy Coweta County traffic with no problems, and was able to copy the Fayette County high-band tone-out frequency, so I knew the problem wasn't with the radio.

When I woke up this morning I found an email waiting for me from another member of our small scanning circle who had figured out the issue might be a missing frequency in the scan group - 853.750. Sure enough, I was missing it. Since I added it earlier this morning I'm back up and scanning the P25 system with no problems.

My suspicion is that around 1600(ish) yesterday, just as the storms were starting to hit Fayette County, someone (the Kenwood/EF Johnson contractor?) switched 853.750 in as the P25 control frequency. Since Joe's scanner, and the county's new Kenwood radios have that frequency programmed in, for them it was business as usual. But for me, without that frequency, all I heard was dead air.

Brian
W8BYH

Mystery solved.

 

[KDT5256]

This matches my experience last night, but I don't think it was storm or power related.

I live close to downtown Fayetteville and purchased my SDS100 largely on the advice of Joe, KI4ASK (a good friend and ham radio buddy). I got my scanner set up a at Christmas and along with Joe and a few others have been scanning the county P25 system and working to get an accurate talk group fleet map set up. Tracking things and nabbing new talk groups has been a lot of fun.

Yesterday I rushed home from work just as the storms started to hammer the south Metro area (I work at Hartsfield-Jackson airport). I got in around 1600, grabbed several radios, including my SDS100, and started monitoring. I was hearing P25 traffic for a short time, but at some point between 1600 and 1630 - not exactly sure when because I was focused on other things - I realized I wasn't hearing any traffic. I contacted Joe to see if he was still receiving traffic. He was, but told me that another member of our group who also scans using an SDS100 reported he was having some issues. I put it down to the weather and power outages. I hooked my scanner up to an external antenna and was able to copy Coweta County traffic with no problems, and was able to copy the Fayette County high-band tone-out frequency, so I knew the problem wasn't with the radio.

When I woke up this morning I found an email waiting for me from another member of our small scanning circle who had figured out the issue might be a missing frequency in the scan group - 853.750. Sure enough, I was missing it. Since I added it earlier this morning I'm back up and scanning the P25 system with no problems.

My suspicion is that around 1600(ish) yesterday, just as the storms were starting to hit Fayette County, someone (the Kenwood/EF Johnson contractor?) switched 853.750 in as the P25 control frequency. Since Joe's scanner, and the county's new Kenwood radios have that frequency programmed in, for them it was business as usual. But for me, without that frequency, all I heard was dead air.

Brian
W8BYH

Thank you Brian,

That fixed it for me as well. What kind of scanner does Joe have I wonder. I too work at the airport and everyone living south of Atlanta headed home early. I can hear County VHF-H but PTC VHF-H has been silent.

Ben Carr

 

[MTS2000des]

My suspicion is that around 1600(ish) yesterday, just as the storms were starting to hit Fayette County, someone (the Kenwood/EF Johnson contractor?) switched 853.750 in as the P25 control frequency.

Control channels can and will roll for a variety of reasons. On Motorola cores, it's the "first line of defense" if the core detects something at one of the RFSS or in the network it doesn't like. Could be anything: illegal carrier detected on the current CC, failure of BTS hardware at an RFSS, bad link, etc. I am sure JVC Kenwood systems operate similarly as they are P25 compliant. May not have been anything anyone did, but without a vista into their NM client or whatever JVC calls it, anyone's guess. Having all the licensed frequencies in your scanner solved the problem.

 

[bwh]

Thank you Brian,

That fixed it for me as well. What kind of scanner does Joe have I wonder. I too work at the airport and everyone living south of Atlanta headed home early. I can hear County VHF-H but PTC VHF-H has been silent.

Ben Carr

Joe has an SDS100.

Control channels can and will roll for a variety of reasons. On Motorola cores, it's the "first line of defense" if the core detects something at one of the RFSS or in the network it doesn't like. Could be anything: illegal carrier detected on the current CC, failure of BTS hardware at an RFSS, bad link, etc. I am sure JVC Kenwood systems operate similarly as they are P25 compliant. May not have been anything anyone did, but without a vista into their NM client or whatever JVC calls it, anyone's guess. Having all the licensed frequencies in your scanner solved the problem.

Fascinating. Thanks! I was talking to one of our club members who also works as a call taker/dispatcher at Fayette County 911. He mentioned to me today that they've been taught that the system will 'self-heal' if it detects anything funky on one of the frequencies. That's more than likely what happened yesterday.

Brian

 

[ki4ask]

All - this weekend, I will be at the Gwinnett TechFest (TechFest – TechFest) - a FREE radio-centric gathering up at the Gwinnett County Fairgrounds. I think Brian (above) is also planning to attend. Seems like we have a nice community of Fayette County radio enthusiasts here. If you do plan to attend, stop by the Georgia AuxComm table and mobile command vehicle - I should be around. Would love to meet some of you in person. - Joe

 

[MTS2000des]

Fascinating. Thanks! I was talking to one of our club members who also works as a call taker/dispatcher at Fayette County 911. He mentioned to me today that they've been taught that the system will 'self-heal' if it detects anything funky on one of the frequencies. That's more than likely what happened yesterday.

I saw an entire ATLAS system at IWCE in Vegas back in 2017. It was way different than my Moto M2 core system. Every site had a 1RU VM-wave based machine that was a core in itself. All call processing and HLR/VLR lived in each site, so if a site went offline, you still had trunking and all services available, even down to 1 RFSS. In MSI world, lose more than 50 percent of your RFSS, you're in failsoft. All call processing and subscriber databases go bye-bye if you lose your connection to the mothership (your prime/master) and go right to failsoft.

JVC Kenwood bought Atlas from EF Johnson. EF Johnson invented trunking. They know their business well.

 

[ki4ask]

Thanks to those of you who stopped by to say "hello" yesterday at the Gwinnett TechFest. I'm the guy in the background with black hat and green tac pants.

All - this weekend, I will be at the Gwinnett TechFest (TechFest – TechFest) - a FREE radio-centric gathering up at the Gwinnett County Fairgrounds. I think Brian (above) is also planning to attend. Seems like we have a nice community of Fayette County radio enthusiasts here. If you do plan to attend, stop by the Georgia AuxComm table and mobile command vehicle - I should be around. Would love to meet some of you in person. - Joe

 

[gtaber]

Is the Uniden BCD325P2 compatiable to receive the Fayette County GA new P25 radio system????? I am new to all this.

 

[ki4ask]

I'm not sure. BCD325P2 does support P25 Phase 2, but I don't know if it supports multicast. There's only one way to find out - try using it and see what happens.

Is the Uniden BCD325P2 compatiable to receive the Fayette County GA new P25 radio system????? I am new to all this.

 

[RRR]

Verified Talkgroups, Interop frequencies (See NIFOG), and Unit ID’s. I have friends who work for some of the public safety agencies in Fayette County and most of these have been verified with their radios - they keyed up and I made note of the TG. Be advised, they are still testing the system and working out the bugs. They do intend to encrypt the entire system later this year. I’m using an SDS100.

Talk Group ID’s
3 - FCSO Dispatch
5 - FCSO
21 - Jail
23 - Jail
129 - Fayette Marshal
161 - FCFD Dispatch
163 - FCFD Admin
165 - FCFD Command
167 - FCFD
169 - FCFD Tac 1
171 - FCFD Tac 2
173 - FCFD Tac 3


Unit ID’s
7 COUNTY FIRE.= STATIONS 1-8 & 10, BATTALION-7
8 PEACHTREE CITY FIRE = STATIONS 81,82,83 & 84, BATTALION-8
9 FAYETTEVILLE FIRE = STATIONS 91,92 & 93, BATTALION-9
11 FAYETTE COUNTY CONSTABLE
12 FAYETTEVILLE POLICE
13 PEACHTREE CITY POLICE
14 TYRONE POLICE
15 FAYETTE COUNTY MARSHAL
18 ANIMAL CONTROL
21 FAYETTE COUNTY SHERIFF DEPT.
22 FAYETTE COUNTY SHERIFF DEPT.
23 FAYETTE COUNTY SHERIFF DEPT.
24 FAYETTE COUNTY SHERIFF DEPT.
31 PEACHTREE CITY POLICE
32 PEACHTREE CITY POLICE
33 PEACHTREE CITY POLICE

Ok, which are "Unit ID's" and which are "Talkgroups"? You keep stating "ID's"