ecps92
Member
yes, just pointing out [for the other person] that we can confirm location, even tho NTIA channels 
U.S. Marshals Service P25 TRS (BEE00-4F0)
- Thread starter dave3825
- Start date
Which is a possibility supported by the appearance of similar, yet unidentified, federal P25 trunked systems appearing around several major cities on both coasts. Noting that also, could this be part of a widespread national plan to create systems like this for FIO or primary comms?
Interestingly enough, I can't receive this finding or Site 117 in Union County, NJ. Site 118 however is booming in RSSI -49 with 100% decode, 0 errors.
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Eh, I believe they tried that once with the Justice Integrated Wireless Network or whatever it's called. That seemed to fizzle out and there are some sites on either coast, but nothing consistent. If they were going to continue to build out some sort of nationwide network, they could've continued on that ASTRO 25 core. Seems like they realized that doing it regionally is a better idea.
EDIT: Sorry pal, I mis-read what you posted. You were eluding to multiple regional systems, not one big nationwide system.
Any neighboring sites being reported?
katt02
Katt
- Joined
- Oct 25, 2018
- Messages
- 181
Apologies, For the signal report I confused my sites. 1.144 is weak in west Essex county right now; Site 1.118 is fairly strong here.
From DSD there are no neighbor sites reported or being broadcast, however it follows the same SYSID and bandplan as the other sites. DSD has appended this site to my list of 4F0 sites.
Some additional data points:
Site 118 not heard at all on top of Sheep Hill in Boonton Township, Morris County (823ft ASL). Started fading off around the Union Toll Plaza on the Garden State Parkway.
Site 144 not heard in Union County, but started showing up in the area of Short Hills Mall. It was full scale on a handheld with a rubber duck On NJ-24 near Morristown Airport, consistent RSSI in the very low -40's with 100% decode and 0 errors (Unitrunker). And on the mobile it is only about 50% strength on the S-meter top of Sheep Hill in Boonton Township, Morris County (823ft ASL) at RSSI -60 with 100% decode and 0 errors (Unitrunker). No peers showing, as mentioned. NAC 4F4. Band plan:
Pretty good idea of where Site 144 might be, and that'll be checked shortly.
Thanks to everyone in the area who is looking and listening for this system. I'll be keeping a watch on this thread for updates.
The idea that this is going to be a large area federal interoperability system is intriguing. Those of us old enough to remember when trunking was "new", there are rumors of federal all-agency UHF trunked systems appearing in major cities across the country. Most of those turned out to be federal prison facilities or other specific federal installations, not for all federal operations.
I will say that I was told about a certain federal agency was looking to add several new VHF P-25 conventional repeaters to an area. The engineering firm that was laying out the radio sites suggested to the agency that they go ahead and make it a trunked system, as clearing new VHF frequencies is getting harder for the feds now, just as it is for the FCC controlled spectrum. Once the frequencies are cleared by the NTIA, if they needed more capacity in the future, they only need to add talk groups and not more frequencies.
- Chris
The idea that this is going to be a large area federal interoperability system is intriguing. Those of us old enough to remember when trunking was "new", there are rumors of federal all-agency UHF trunked systems appearing in major cities across the country. Most of those turned out to be federal prison facilities or other specific federal installations, not for all federal operations.
I will say that I was told about a certain federal agency was looking to add several new VHF P-25 conventional repeaters to an area. The engineering firm that was laying out the radio sites suggested to the agency that they go ahead and make it a trunked system, as clearing new VHF frequencies is getting harder for the feds now, just as it is for the FCC controlled spectrum. Once the frequencies are cleared by the NTIA, if they needed more capacity in the future, they only need to add talk groups and not more frequencies.
- Chris
When I first found this system, it was 2 days before any activity. Then there was tg 30882 ( I got it right this time @GTR8000 ) then just rid 8804456 transmitted 18 times between 09:30 and 09:40. Then no activity until rid 8804409 transmitted at 15:30, then logged out. Zero activity other than a steady control channel since Wednesday.
I also noticed on Fmp24, while locked on the cc, that 2 other strong signals appeared on the spectrum (171 & 172 mhz) and they definitely sounded like P25 control channels, but DSDPlus, Sdrtrunk and Op25 would not decode anything off them. Then all 3 went off and after 30 minutes, 171.4625 came back on.
I also noticed on Fmp24, while locked on the cc, that 2 other strong signals appeared on the spectrum (171 & 172 mhz) and they definitely sounded like P25 control channels, but DSDPlus, Sdrtrunk and Op25 would not decode anything off them. Then all 3 went off and after 30 minutes, 171.4625 came back on.
On which site? Site 118 has shown two affiliations today to TG 30882 from two unique RID's.
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Lol, Its all in the first post of this thread, but site 122, and the same thing, 2 rid's to the same tg.
reconrider8
Member
Wonder if they may have been test channels. I've read about them and they sound simular to regular control channels but don't transmit any data. They are used to find holes and deadspots in the are before the system goes active
ecps92
Member
You mean like the UHF TRS that Boston had, but no one ever used and sat chugging along for 10 yrs before someone tripped over the power cord and shut it off ?
Unitrunker results from an overnight run on Site 118. Which includes additional frequencies for the site. Again, this was captured from Union County, NJ, RSSI -52, 100% decode with zero errors. I don't think this site is in Dutchess or that would be impossible for this receiver.
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Site 118
S7 on the meter on 173.550 in Garwood, NJ. RSSI -52, 100% decode, 0 errors on a magmount on an air conditioner.
S0 on the meter on 172.050 in Newark, NJ near the federal building. Unreceivable.
S9 on the meter on 173.550 at the West Orange tower site (40.7880426,-74.2545725 - 610ft ASL). RSSI -52, 100% decode, 0 errors.
Site 144
S0 on the meter on 172.050 in Garwood, NJ. Unreceivable.
S0 on the meter on 172.050 in Newark, NJ near the federal building. Unreceivable.
S5 on the meter on 172.050 at the West Orange tower site (40.7880426,-74.2545725 - 610ft ASL). RSSI -58, 100% decode, 0 errors.
Sites 117 and 122 not heard at all (yet). A full report will be posted later from the roundabout exploration up towards Beacon, NY.
S.
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