Texas federal government monitoring

[ecps92]

Yes, that's probably the input NAC.

See what you find on 165.9500 the usual Repeater Output

I've noticed the input NAC's will range from 001-010 [depending on the size of the coverage area] for each Rptr [similar to BATFE] and use $100 as the output NAC

Getting some P25 activity on 167.0000MHz NAC 010 in San Antonio. I have this as "IRS" in my notes. I'm hearing encrypted and in the clear.

"San Antonio Base this is *unintelligible*"

"Test 1-2, Test 1-2"

This is the first time I've heard this frequency. The NAC isn't "typical" IRS, but it is damn close...

 

[ecps92]

Both. Especially when in a new area [Scan-Cations] for travel, it helps to look out for new channels. Also you never know when something new might pop-up in your own neighborhood.

I run in Search

137-143, 148-150.8, 162.0125-162.3750, 162.5625-173.0000
380-400, 400-420 [yes most people do 406-420, but there is more there than Satellites and Telemetry]

so this is probably a dumb question and i probably missed the answer while reading this thread. Are yall just scanning through frequency spectrum or do yall have an idea of what freqs are commonly used and just scanning those? hunting frequencies sounds like fun.

 

[texasemt13]

See what you find on 165.9500 the usual Repeater Output.

Thanks, that frequency has also been in my "Fed List" for awhile now, but I've never caught anything on it.

When I heard voice on 167.000 I began doing limit searches around there and never came up with anything. I'll see what I can hear in the coming weeks.

 

[texasemt13]

See what you find on 165.9500 the usual Repeater Output

I'm inclined to say, in this instance it is reversed. I'm getting 167.000 $010 loud and clear. When tuning to 165.9500 I'm only hearing a real weak digital signal, not enough to decode the NAC.

This frequency is encypted today, no clear transmissions yet. I'm only about 2 miles from the office in San Antonio, if that is where the transmitter is.

 

[ecps92]

I would say , since your close to the office, it's on a BEAM aimed outward to where the Repeater is. just my Opinion, as so Far in the Metro Boston Region we have identified 5 Repeaters all surrounding the Metro area.

I'm inclined to say, in this instance it is reversed. I'm getting 167.000 $010 loud and clear. When tuning to 165.9500 I'm only hearing a real weak digital signal, not enough to decode the NAC.

This frequency is encypted today, no clear transmissions yet. I'm only about 2 miles from the office in San Antonio, if that is where the transmitter is.

 

[texasemt13]

I would say, since you're close to the office, it's on a BEAM aimed outward to where the Repeater is. Just my Opinion, as so Far in the Metro Boston Region we have identified 5 Repeaters all surrounding the Metro area.

This would confirm my point, I'm hearing 167.000 loud and clear which I suspect is the output. 165.950 is weak, and if it's the input, transmitted through a beam pointed at the repeater, it would make sense why I'm hearing it weak, even though I'm only two miles away.

I've brought my P25 radio inside now and am parking on the freq in question. We'll see what turns up. This shouldn't be too hard to figure out if they'd talk a little more.

 

[texasemt13]

Hearing a "November-Golf 107" this morning on an OBP repeater in San Antonio, looking for 940 (Laredo dispatcher, who never answered).

I've never heard a "November-Golf" before. Best I can figure is "National-Guard." Texas ANG has a FTW at Lackland. Both that's one speculation based on another.

Any help?

 

[Billknn]

I'd say that's a pretty good guess, John.

 

[ecps92]

Tried matching 107 and NG via the CBP/DHS Air Assetts page w/o Luck, however stumbled on this over at
http://forum.scramble.nl/viewtopic.php?t=70007

166850/NG-107

F/A-18F from VFA-41

just a thought, ODD, but it's DHS !

Hearing a "November-Golf 107" this morning on an OBP repeater in San Antonio, looking for 940 (Laredo dispatcher, who never answered).

I've never heard a "November-Golf" before. Best I can figure is "National-Guard." Texas ANG has a FTW at Lackland. Both that's one speculation based on another.

Any help?

 

[texasemt13]

Possible but...

... it looks like VFA-41 is out on deployment. They assisted in the Battle for the Liberation of Libya.

I wouldn't expect those guys on VHF Hi, FM, with a correct repeater offset and input tone, to be calling a linked dispatcher from a repeater 100 miles away from the dispatcher. If anything, they essentially had to pass by the dispatcher to get to this location, assuming they'd be coming from their base, NAS Lemoore.

I'm not saying it wasn't but I've seen more logical explanations.

I took the picture below as I was passing the CBP OAM Hangar yesterday at SAT. Yep, it's a forklift, painted with CBP and blue stripe. Foxtrot Lima 1234 is his callsign (... just kidding).

 

[texasemt13]

Faa

Just caught some real low power traffic here at SAT.

Frequency 172.1750 MHz is a known FAA frequency. The CT (yes, analog) was 136.5, a known (albeit old) FAA tone. Definitely simplex, no squelch tail and they could easily "walk" on each other, and did a few times. Rubber duck on the 500 was real weak, telescoping antenna on the indoor 2036 was lima charlie.

The users were talking about turning in to the airport field from an exterior road to use a machine. They were trying to park their vehicles before they went to lunch.

Never heard this before, but rest assured it's in the lineup now. I'll try to get more from them after their lunch break.

 

[motorola_otaku]

That tone/freq combo has been documented as being used by TSA screeners with voice inversion scrambling, presumably on their new Icom handhelds. Guess somebody (or a couple of somebodies) bumped the switch on their radios.

 

[texasemt13]

I was wondering that also, but these guys were definitely driving around most of the time I heard them. Then talking about operating machinery on the edge of the flight line. Not typical TSA traffic (checkpoint radio checks and supervisor requests). This was plain jane analog voice, loud and clear.

 

[ecps92]

And still pretty much an FAA channel. As they continue to convert over to P25 there are still some Analog systems across the country.

Boston only got converted this past fall to P25 and now is using this in Simplex with $293. as Ch.11 aka Simplex 1

The Monitoring Times FedCom Blog had the channel plans posted in the past few years.

Good Catch

Just caught some real low power traffic here at SAT.

Frequency 172.1750 MHz is a known FAA frequency. The CT (yes, analog) was 136.5, a known (albeit old) FAA tone. Definitely simplex, no squelch tail and they could easily "walk" on each other, and did a few times. Rubber duck on the 500 was real weak, telescoping antenna on the indoor 2036 was lima charlie.

The users were talking about turning in to the airport field from an exterior road to use a machine. They were trying to park their vehicles before they went to lunch.

Never heard this before, but rest assured it's in the lineup now. I'll try to get more from them after their lunch break.

 

[ecps92]

What Airport ?

That tone/freq combo has been documented as being used by TSA screeners with voice inversion scrambling, presumably on their new Icom handhelds. Guess somebody (or a couple of somebodies) bumped the switch on their radios.

 

[texasemt13]

Still getting key-ups on 165.6875MHz (CT 100.0) here around SAT. No voice ever. This is suspected CBP, as it is at IAH (Net 4).

Also, the 172.175 is still some weak simplex voice comms (CT 136.5). Still not much context in the exchanges though it's definitely used at local airports (SAT and IT8 evidently, they said they're going to Bulverde after lunch).

 

[texasemt13]

I'm getting numerous transmissions on 163.7000 MHz, NAC 169. Definitely ICE type activity. Definitely simplex, and this matches the Harris County Federal listing. So I'll submit this for Bexar County today.

 

[ecps92]

163.7000 S $169 is ICE NAT Tac-1

I'm getting numerous transmissions on 163.7000 MHz, NAC 169. Definitely ICE type activity. Definitely simplex, and this matches the Harris County Federal listing. So I'll submit this for Bexar County today.

 

[texasemt13]

Still getting key-ups on 165.6875MHz (CT 100.0) here around SAT. No voice ever. This is suspected CBP, as it is at IAH (Net 4).

Wow! I just got voice on this one for the first time, after SO long with just key-ups.

I heard an aircraft (N709CH, comes back to Wells Fargo, a typical registration owner for planes where the "owner's" loan is with Wells Fargo, I bet to save paperwork if it needs to be placed in lien- anyways), call "San Antonio NIAC" (pronounced nye-ack), and say they were in bound with some cargo.

Not getting much info on the plane or NIAC (if that is the actual abbreviation, that's how it was pronounced). Any help here is appreciated.

*Just heard again: "Control this is NIAC, moving N709CH to the terminal."

BTW, did anyone else happen to see the 5 FPS Tahoes at 100 NE Loop 410 today? Our corporate office is in the building and I saw 5 FPS Tahoes out there. I do recall there is a Dept of Treasury office in that building as well- maybe they're just checking on the property.

 

[texasemt13]

Just heard another aircraft being moved through inspection by "Control" and "NIAC." NIAC is the inspecting agent it sounds like. This registration came back to an aircraft out of Mexico.