[FedCom] Freq Help

Bill ecps92 at earthlink.net
Tue Nov 22 18:34:58 EST 2005


In Boston the Echo Units were/are the FBI Radio Techs.  Looking at the 
CTCSS, I'd go with the FBI
Much of the FBI is still Analog.  altho there are a Few ASTRO units floating 
around, most of the analog
is Clear or DVP/DES.


Bill Dunn    N1/KUG
Cruise Ship Frequencies
http://home.earthlink.net/~ecps92/cruise_ships.htm  [Updated]


----- Original Message ----- 
From: "John Wilson" <w4uvv at adelphia.net>
To: "Discussion of Federal Government Communications" 
<fedcom at mailman.qth.net>
Sent: Tuesday, November 22, 2005 3:54 PM
Subject: Re: [FedCom] Freq Help


>   172.0750 mhz. along with 172.0650 and 172.050  mhz. are assigned to the 
> Commerce Dept.  and are used  ACSB testing at airports.  Monitoring Times 
> magazine within the last few years had an article on this project. The 
> project has something to do with enhancing private pilot operations at 
> private and commercial airports/airfields....I think.  Email MT. Somebody 
> probably can supply you more details.   Then again, 167.9 hz. is the 
> common FBI pl.  Normally the FBI does not operate unencrypted. 167.9 pl 
> also is used by ATF, DOE, FEMA, HHS, INS and US Marshalls. With the 
> reorganization of some agencies being incorporated into  Homeland Security 
> its' hard to say.  It could also be a contractor for the federal 
> government.  171.1000 mhz. seems to be a popular federal government 
> contractor P25 voice frequency.  Keep listening for more possible 
> insight..
>
> MJ Cleary wrote:
>
>>Hi all,
>>
>>Today I found a freq that wasn't found active before in numerous searches. 
>>Freq is 172.075 MHz with Tone of 167.9.
>>Traffic is mostly encrypted with one side in the clear sometimes. 
>>Callsigns heard were ECHO 1 and ECHO 3 and there was a clear transmission: 
>>"How was the airport?". Only other clear ones were radio checks. Answer 
>>was encrypted. My QTH is Charleston, SC.
>>Also found 172.050 MHz to be active this morning with two females in the 
>>clear one upstairs and one in a basement troubleshooting inoperative phone 
>>lines on their computers. They ended up calling Sprint.
>>
>>Ideas?
>>
>>
>>Mark
>>_______________________________________________
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>>FedCom at mailman.qth.net
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>>
>>
>
>
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