Stanislaus CO AMR
- Thread starter silkwater
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mmckenna
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I don't know about that location in particular.
I have talked to AMR radio guys, and they LOVE NXDN. If this is their own channel, I'd suspect that to be in the realm of possibilities.
I have talked to AMR radio guys, and they LOVE NXDN. If this is their own channel, I'd suspect that to be in the realm of possibilities.
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- Mar 22, 2018
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For what it's worth, it has been years since I have heard Sac or Placer Co. AMR on their respective VHF channels in the DB, so they certainly could have migrated the entire region's operations over to another system. I am 99% sure that AlphaOne is on Silke Communications FleetNet; maybe AMR is on there too. There are VERY active EMS talkgroups on that system.
I tried messing around with that frequency set and no luck. I'm sure it'll be discovered at some point.
There was a period of time in the mid 2000s before Stanislaus County AMR was on VHF that they were using Fisher Wireless (which at the time had an LTR Passport system). My guess would be they returned to one of the commercial LMR companies with a site on Mt Oso.
The following systems might have them:
Given all the choices your best bet might be to band-scan 450-455 MHz and 460-465 MHz for a while if you have an NXDN / DMR capable scanner, or search around with DSD+ if you don't.
@mcjones2013 / @officer_415 any other ideas?
The following systems might have them:
Fisher Wireless TeamTalk Trunking System, Various, Multi-State
Fisher Wireless TeamTalk Trunking System Profile
www.radioreference.com
Silke Communications FleetNet Trunking System, Various, California
Silke Communications FleetNet Trunking System Profile
www.radioreference.com
TelePath Corporation (Connect Plus) Trunking System, Various, Multi-State
TelePath Corporation (Connect Plus) Trunking System Profile
www.radioreference.com
Signature Wireless Group iDAS Multitrunk (Bay Area) Trunking System, Various, California
Signature Wireless Group iDAS Multitrunk (Bay Area) Trunking System Profile
www.radioreference.com
Cook's Communications ValleyNet Trunking System, Various, California
Cook's Communications ValleyNet Trunking System Profile
www.radioreference.com
The Radio Guys Trunking System, Woodland, Multi-State
The Radio Guys Trunking System Profile
www.radioreference.com
Given all the choices your best bet might be to band-scan 450-455 MHz and 460-465 MHz for a while if you have an NXDN / DMR capable scanner, or search around with DSD+ if you don't.
@mcjones2013 / @officer_415 any other ideas?
I saw this thread the other night and subscribed to it, and was going to check into it soon.
HOWEVER, tonight I was unrelatedly scanning the 162.050-173.9875 federal band, and started receiving NXDN traffic on 173.225 (which is technically not part of the federal band, 173.20375-173.39625). It's coming in very choppy using my car antenna here in Sacramento, so I can't say for certain what it is, but they had a continuous tone for a few moments, then someone came back "how do you copy tones", and another voice later came on to logon with a vehicle number and the tones happened again.
I had the previous AMR Stanislaus frequency locked out for the most part, but if memory serves correctly, they did this same method for logging on units; units voiced up with their vehicle ID and then dispatch would do a tone test before they hit the street.
If we search for 173.225 in the FCC query, we get WQCP791 which comes back to Ray's Radio Shop, with various sites around the Stockton/Modesto area.
I'd venture to guess 173.225 is their new frequency, but will need to investigate more myself when I get a better decode, unless someone closer can confirm.
HOWEVER, tonight I was unrelatedly scanning the 162.050-173.9875 federal band, and started receiving NXDN traffic on 173.225 (which is technically not part of the federal band, 173.20375-173.39625). It's coming in very choppy using my car antenna here in Sacramento, so I can't say for certain what it is, but they had a continuous tone for a few moments, then someone came back "how do you copy tones", and another voice later came on to logon with a vehicle number and the tones happened again.
I had the previous AMR Stanislaus frequency locked out for the most part, but if memory serves correctly, they did this same method for logging on units; units voiced up with their vehicle ID and then dispatch would do a tone test before they hit the street.
If we search for 173.225 in the FCC query, we get WQCP791 which comes back to Ray's Radio Shop, with various sites around the Stockton/Modesto area.
I'd venture to guess 173.225 is their new frequency, but will need to investigate more myself when I get a better decode, unless someone closer can confirm.
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Okay, was able to get a better decode on it. It's definitely them. Various Medic units heard being dispatched for addresses in Stanislaus cities. 173.225 RAN 60, NXDN Conventional
mmckenna
I ♥ Ø
173.225 is often used for mobile repeaters, and I think is limited to 2 watts, which might explain your choppy signal.
Wow, that is a surprising place for them to turn up! Good catch! I didn't realize that part of the band is grandfathered in? (Edit: Just re-read your post, didn't realize that small sliver of 173.20375-173.3962 was outside the federal band.)
Looks like the Ray's Radio license has a couple 100W mountain top sites, with 225W ERP and 425W ERP from Mt Oso and Bear Mountain respectively. They're also "YG" and not "IG", so curious if there may be a plan for VHF NEXEDGE trunking down the road or whether they'll stay NXDN conventional (I've noticed ULS licenses are not an exact science
).
FCC Callsign WQCP791 (RAYMOND S. GADA, DBA RAYS RADIO SHOP INC.)
FCC Callsign WQCP791 (RAYMOND S. GADA, DBA RAYS RADIO SHOP INC.)
www.radioreference.com
FWIW Ray's Radio also has a UHF multi-site MotoTRBO Connect Plus system covering that area:
Ray's Radio Shop (DMR) Trunking System, Modesto, California
Ray's Radio Shop (DMR) Trunking System Profile
www.radioreference.com
And presumably used to have an 800 MHz Motorola Type II system in Tuolumne County (last updated in 2011, so probably long gone now):
Ray's Radio Shop Trunking System, Twain Harte, California
Ray's Radio Shop Trunking System Profile
www.radioreference.com
It seems many AMR operations in the region have used this license (or other similar Ray's licenses) in one way or another in conventional mode. It might be worth plugging in those unused frequencies on the license to see if anything is in use elsewhere.
152.3225 - AMR Placer (likely using Channel Hill site)
152.3525 - San Joaquin Co Fire CMD 6 (dispatched by AMR, also licensed separately by AMR)
152.4125 - AMR Stanislaus (former?, also licensed separately by AMR)
159.4800 - San Joaquin Co Fire Control 1 (dispatched by AMR, also licensed separately by San Joaquin County Joint Radio Users Group)
159.7425 - Unknown?
159.8025 - Unknown?
160.0575 - AMR Yolo (likely using Bald Mountain or Mt Vaca, I believe there's a separate license for Ray's Radio Shop with the same frequencies there)
160.1700 - Listed in RRDB as the input for AMR Placer, but I personally haven't confirmed, so maybe Unknown?
173.2250 - AMR Stanislaus NXDN
173.3750 - Unknown?
I'm working on submitting that AMR Yolo one. It's DMR Conventional and is super strong all across the Sacramento region. It's adjacent to 160.065, Woodland Fire's frequency and is how I initially discovered it after having Woodland Fire without a tone programmed.
152.3225 - AMR Placer (likely using Channel Hill site)
152.3525 - San Joaquin Co Fire CMD 6 (dispatched by AMR, also licensed separately by AMR)
152.4125 - AMR Stanislaus (former?, also licensed separately by AMR)
159.4800 - San Joaquin Co Fire Control 1 (dispatched by AMR, also licensed separately by San Joaquin County Joint Radio Users Group)
159.7425 - Unknown?
159.8025 - Unknown?
160.0575 - AMR Yolo (likely using Bald Mountain or Mt Vaca, I believe there's a separate license for Ray's Radio Shop with the same frequencies there)
160.1700 - Listed in RRDB as the input for AMR Placer, but I personally haven't confirmed, so maybe Unknown?
173.2250 - AMR Stanislaus NXDN
173.3750 - Unknown?
I'm working on submitting that AMR Yolo one. It's DMR Conventional and is super strong all across the Sacramento region. It's adjacent to 160.065, Woodland Fire's frequency and is how I initially discovered it after having Woodland Fire without a tone programmed.
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Any idea what the input is? I would guess 159.585 or 159.825 looking at the license.
Also, do we know if 155.295 "AMR Channel 2" is still in use?
Awesome. Thank you. I can confirm this is their new frequency.
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I don't know for sure, however I found this document (see overall page 38, or 36 if using the printed page numbers): https://emsa.ca.gov/wp-content/uploads/sites/71/2020/01/MVEMS-2018-12.pdf
It shows the radio plan (pre-NXDN) for Stanislaus County EMS.
152.4125 (I'm guessing replaced by 173.225) is noted as Stan EMS Dispatch Primary (aka AMR since they have the contract for most of the county).
155.395 179.9 (input 155.295, although 155.295 shows in RRDB as base/mobile) is Stan EMS Dispatch Backup
462.9750 123.0 is Rural EMS Provider Dispatch (I believe Oak View, Patterson and Westside ambulance companies, dispatched by AMR still)
It might be worth updating the descriptions on the DB page.
Yolo AMR 160.0575 usually comes up with color code 4 when I see it.
I think you meant 88.5 PL. The only problem is I can't find a license for 155.395. I added the license for 155.295 (WPLS642) to the database, which shows it as BM. Can anyone confirm by monitoring?
Actually doing a quick calculation, 155.395 is not a valid frequency when using 15 kHz step (nor 7.5), so it might be a typo in the document and it's actually 155.295 (thus being base/mobile).
I've updated the DB. I'm going to leave 152.4125 and 155.295 until someone can confirm they're no longer operational.
