169.8875 Unid
- Thread starter Marcy57
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Currently that freq is not part of that system.
Are you sure about that freq? Nothing really jumping out in the database. Are you seeing a nac on that freq?
ecps92
Member
is your signal showing a SysID? Where as the signal from L..I. is not
I am getting 4F0. Seems to be all encrypted. I haven't gotten any TG's in the clear.
I am assuming something related to this system.
U.S. Marshals Service Trunking System, Regional, Multi-State (radioreference.com)
I know they have been expanding in NYC but unsure of it's use. It seems to be very sporadic
I am assuming something related to this system.
U.S. Marshals Service Trunking System, Regional, Multi-State (radioreference.com)
I know they have been expanding in NYC but unsure of it's use. It seems to be very sporadic
Do you have DSDPlus or SDRTrunk? If so, can you post any of the system info like neighbors, cc and voice channels?
I am going to replace my dongle the next 2 weeks. The old one i have isn't reading in the USB slot. Once i do, I will post screenshots.
I am using DSDPlus currently.
This observation i posted was from 11/25/2022 and the dongle has failed since.
I am using DSDPlus currently.
This observation i posted was from 11/25/2022 and the dongle has failed since.
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Anyway, the original post was asking about 169.8875 and somehow we drifted away from that freq to the Marshalls thread 
forums.radioreference.com
I cannot figure out what type of control channel or data stream it actually is on 169.8875. Signal is 10/10 at my location ( -70db ). Tried Motorola all types and P25 - the radio doesn't decode it as anything.
U.S. Marshals Service P25 TRS (BEE00-4F0)
Band openings have been crazy on the East Coast so I am not sure where this is coming from. Been seeing for about a week now. Network: BEE00.4F0 Site: 1.122 NAC=4F2 Channel 8-741: 171.2625 DATA Channel 9-1482: 171.2625-1 VOICE Channel 8-757...
I cannot figure out what type of control channel or data stream it actually is on 169.8875. Signal is 10/10 at my location ( -70db ). Tried Motorola all types and P25 - the radio doesn't decode it as anything.
Anyway, the original post was asking about 169.8875 and somehow we drifted away from that freq to the Marshalls thread
U.S. Marshals Service P25 TRS (BEE00-4F0)
Band openings have been crazy on the East Coast so I am not sure where this is coming from. Been seeing for about a week now. Network: BEE00.4F0 Site: 1.122 NAC=4F2 Channel 8-741: 171.2625 DATA Channel 9-1482: 171.2625-1 VOICE Channel 8-757...
I cannot figure out what type of control channel or data stream it actually is on 169.8875. Signal is 10/10 at my location ( -70db ). Tried Motorola all types and P25 - the radio doesn't decode it as anything.
V.52 test pattern?
I tried everything in dsd then went to signal wiki but that site gives me a headache.
ecps92
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169.8875 is off as of 0115 been on during today , was vy strong
as usual all day seems to go QRT now and then but gone as of
this moment...has been at least 10 over signal wise here when
on...73,s Marcy (thats 8.15 pm)
as usual all day seems to go QRT now and then but gone as of
this moment...has been at least 10 over signal wise here when
on...73,s Marcy (thats 8.15 pm)
This signal that was discovered almost 5 months ago is still sitting there. Still not decodable.
Almost 7 months now.
Interesting fun fact but no idea how it relates to this signal - although 169.8875 is a Federal frequency, it appears on FCC licenses for State P25 systems in Maine, Missouri and Tennessee. So it is probably in the NTIA frequency pool not dedicated to any Federal agency country wide and available for use on a local basis including letting the FCC assign it in special cases.
I think whatever it is probably is not likely to turn into a P25 Control Channel after all this time. Since it occasionally is off the air it probably is some sort of test signal. Suspects would be either a manufacturer, university or government R&D facility. Since it seems to be in the Brookhaven area best way to ID it is to drive around with a portable and watch the signal strength. If you have a VHF Yagi and can get a bearing from a couple of locations it would help narrow the search area. Once you pin down where the signal is coming from you know "who is it" which may be a clue to "what is it". It doesn't seem to be related to the Brookhaven National Labs mission but I wouldn't rule it out.
I think whatever it is probably is not likely to turn into a P25 Control Channel after all this time. Since it occasionally is off the air it probably is some sort of test signal. Suspects would be either a manufacturer, university or government R&D facility. Since it seems to be in the Brookhaven area best way to ID it is to drive around with a portable and watch the signal strength. If you have a VHF Yagi and can get a bearing from a couple of locations it would help narrow the search area. Once you pin down where the signal is coming from you know "who is it" which may be a clue to "what is it". It doesn't seem to be related to the Brookhaven National Labs mission but I wouldn't rule it out.
It's been pretty much online straight the last few months. Think a hunt is in order. I only receive at my location using a discone. Does not show on my scanners but its programmed in. Might be heading to East End for some fishing soon, so looks like my new Airspy mini from Itead is going along for the ride.
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Non-Fed police sometimes get FCC licenses for FBI frequencies--I have seen them do that. Putting an audio recording here or on reddit r/signalidentification might even be better.
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Probably the area wide FED/non-FED system Note the WACN decodes as WNNT40 which is likely the first part of an FCC callsign.
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