Post Your Mystery Frequencies

batdude · May 1, 2020

ScubaJungle said:
I have been getting enc DMR on 418.3375. I think it may be USPS as well.

That makes sense, thanks. I thought it was suspiciously similar.

Oh okay, I was confused since I saw 8CD on the DB - and sorry I keep meaning to put it - Im located in Tampa. I can just get enough signal for DSD to decode.
Coleman is 61 miles from me, so thats quite a catch with a little SDR Blog V3 kit dipole antenna.

about 80 miles to the northeast from me... I only hear it when the band is open.

ecps92 · May 1, 2020

Since you are closer and likely heard it recently, can you submit to get the NAC added to

Federal Correctional Complex Coleman Site: FCC Coleman

Federal Correctional Complex Coleman Site: FCC Coleman Details

www.radioreference.com

batdude said:
Voice channels will not have the same NAC as the system ID. There is an article on the logic behind this.....somewhere, but I can't seem to find it. Both of those are most certainly part of the Coleman system and you will see NAC 8C0 on the voice channels during decode.

hope that helps!

d

ecps92 · May 1, 2020

According to the on-line MAPS VHF and UHF are open this am, so quite possible this is Coleman

8CD is the SysID
Site 1 Site Details (Federal Correctional Complex Coleman) is where the NAC would be, once confirmed

ScubaJungle said:
Oh okay, I was confused since I saw 8CD on the DB - and sorry I keep meaning to put it - Im located in Tampa. I can just get enough signal for DSD to decode.
Coleman is 61 miles from me, so thats quite a catch with a little SDR Blog V3 kit dipole antenna.

ScubaJungle · May 1, 2020

ecps92 said:
According to the on-line MAPS VHF and UHF are open this am, so quite possible this is Coleman

8CD is the SysID
Site 1 Site Details (Federal Correctional Complex Coleman) is where the NAC would be, once confirmed

Where do you find these maps, is ti a website? I didnt know this existed, sounds awesome.

batdude · May 1, 2020

ScubaJungle said:
Where do you find these maps, is ti a website? I didnt know this existed, sounds awesome.

the way this works are various ham beacons... mostly VHF... but it's indicative of general ducting for UHF/800 as well

VHF Propagation Map

aprs.mennolink.org

ScubaJungle · May 1, 2020

batdude said:
the way this works are various ham beacons... mostly VHF... but it's indicative of general ducting for UHF/800 as well

VHF Propagation Map

aprs.mennolink.org

Ohh I see, I had that one bookmarked but I didnt realize it was useful for UHF and in general as well.

ecps92 · May 2, 2020

Any Trunked Site, you can click on the Zone/Site and it opens up, based on a Geo Circle
implemented by the DB Admins.

Federal is tough for them, but the FCC info generally will show the licensed towers

ScubaJungle said:
Where do you find these maps, is ti a website? I didnt know this existed, sounds awesome.

ScubaJungle · May 2, 2020

ecps92 said:
Any Trunked Site, you can click on the Zone/Site and it opens up, based on a Geo Circle
implemented by the DB Admins.

Federal is tough for them, but the FCC info generally will show the licensed towers

Oh yeah I know the site maps, I was referring to a map that shows band openings/ducting conditions for particular bands. I thought you meant that there was another site that showed different band openings besides for the amateur repeaters on http://aprs.mennolink.org/
The site maps on RR are static though, right? The ranges/diameters dont shift with daily conditions?

ecps92 · May 2, 2020

QSO/SWL real time maps and lists

www.dxmaps.com

ScubaJungle said:
Oh yeah I know the site maps, I was referring to a map that shows band openings/ducting conditions for particular bands. I thought you meant that there was another site that showed different band openings besides for the amateur repeaters on VHF Propagation Map
The site maps on RR are static though, right? The ranges/diameters dont shift with daily conditions?

batdude said:
the way this works are various ham beacons... mostly VHF... but it's indicative of general ducting for UHF/800 as well

VHF Propagation Map

aprs.mennolink.org

nd5y · May 2, 2020

ScubaJungle said:
The site maps on RR are static though, right? The ranges/diameters dont shift with daily conditions?

Correct. The db range circles are only for location based scanning.
Sometimes they are centered on actual transmitter locations and sometimes they are centered on a city, county or other service area. They have nothing to do with real life radio conditions.

ScubaJungle · May 2, 2020

ecps92 said:
QSO/SWL real time maps and lists

www.dxmaps.com

Awesome, thank you. That has a lot more features and bands.

-----------

Got a DMR hit on 391.8 CC11 full ENC for the few mins I heard

ScubaJungle · May 2, 2020

Sorry again - 391.150, not 8.

ScubaJungle · May 3, 2020

Yesterday also had a hit on (in addition to 391.150, DMR Color Code 11):
-170.4375, P25, NAC: F00
Cant find anything with NAC F00

N1XDS · May 3, 2020

ScubaJungle said:
Yesterday also had a hit on (in addition to 391.150, DMR Color Code 11):
-170.4375, P25, NAC: F00
Cant find anything with NAC F00

If I had to guess and hopefully I am right it's possible is Border Patrol closest anything I can find with NAC F00 relation.

Federal NAC codes

ecps92 · May 3, 2020

The Fed Files Blog

THE FED FILES - Welcome to The Fed Files blog! This blog was originally built to support the "Fed Files" column in Monitoring Times magazine. Although the Fed Files, as well as Monitoring Times, ended with the December 2013 issue, this blog continues and is associated with the new federal...

mt-fedfiles.blogspot.com

Been around [F00] for sometime now, not identified tho

ScubaJungle said:
Yesterday also had a hit on (in addition to 391.150, DMR Color Code 11):
-170.4375, P25, NAC: F00
Cant find anything with NAC F00

N1XDS · May 5, 2020

Scanning around the Federal frequencies I am picking up 172.7250 NFM NAC 120 "Lock up is secured". I looked over on R/R Federal Nac Codes and found these users that use NAC 120...ACoE, FBI (OH), NPS.

ecps92 · May 5, 2020

NPS - Blue Ridge Parkway

Federal (North Carolina) Scanner Frequencies and Radio Frequency Reference

Scanner Frequencies and Radio Frequency Reference for Federal (North Carolina)

www.radioreference.com

N4CYA said:
Scanning around the Federal frequencies I am picking up 172.7250 NFM NAC 120 "Lock up is secured". I looked over on R/R Federal Nac Codes and found these users that use NAC 120...ACoE, FBI (OH), NPS.

batdude · May 5, 2020

ecps92 said:
Since you are closer and likely heard it recently, can you submit to get the NAC added to

Federal Correctional Complex Coleman Site: FCC Coleman

Federal Correctional Complex Coleman Site: FCC Coleman Details

www.radioreference.com

site NAC 8C0 was submitted and has been added to the page.

d

ScubaJungle · May 5, 2020

Does anyone know what the paging-like signals are on the federal bands? Right now on 418.1625 Im getting this signal which sounds somewhat like a POCSAG paging signal, but maybe a bit different. Is this something that can be decoded? I've also seen these on 162-174.

nd5y · May 5, 2020

ScubaJungle said:
Does anyone know what the paging-like signals are on the federal bands? Right now on 418.1625 Im getting this signal which sounds somewhat like a POCSAG paging signal, but maybe a bit different. Is this something that can be decoded? I've also seen these on 162-174.

It could be SCADA or intermod from some non-federal frequency.

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