[Date Prev][Date Next][Thread Prev][Thread Next] - [Date Index][Thread Index][Author Index]

Re: Pin point the UO-14 jammer.



Also his radio can be "finger printed" so the jammer would have to buy two
rigs if he wanted to play nice.....Sad but true this, jammer is a friend or
neighbor...

He is probably reading the bb, so he is getting his jollies off or what ever
his brand of sickness does for him.....

de mike


-----Original Message-----
From: rdwelch@swbell.net <rdwelch@swbell.net>
To: Paul Williamson <kb5mu@AMSAT.Org>
Cc: brahn@voyager.net <brahn@voyager.net>; James Sharp
<jsharp@psychoses.org>; amsat-bb@AMSAT.Org <amsat-bb@AMSAT.Org>
Date: Saturday, July 28, 2001 8:51 AM
Subject: Re: [amsat-bb] Pin point the UO-14 jammer.


>We once had a bootlegger on the digital satellites who was sending porn
>photos and using the callsigns of other stations as the sending station.
>Using the overlapping acquisition circles from several of his uploads we
>quickly located him in the northeastern corner of one of the European
>countries.  Evidently the other stations in that country then quickly knew
>who it was and it was stopped.
>
>This was easy to do with the digital satellites since the station began to
>automatically upload as soon as he received the satellite OPEN indication.
>All we had to do was find the dates & times of the upload from the message
>headers and run a tracking pass at that time for several of his uploads.
>Superimposing the acquisition circles on each of these uploads and looking
>at the overlapping area pretty well told where it was coming from.
>
>The same can be done with voice operation, but the listening station should
>make a note of the exact time intervals of hearing the station on several
>different orbits.  Later a combination of the acquisition circles from
>different orbits can be superimposed.  The more, the better.  In fact
>several acquisition circles from one orbit can be superimposed with several
>from additional orbits, giving what should be a very good location.  It
>even gets better if the passes are a combination of north to south and
>south to north passes since the overlapping areas are generally smaller.
>
>
>Paul Williamson wrote:
>>
>> Uh ... Doppler-based foxhunting techniques are going to be awfully hard
>> to use on an FM satellite.
>>
>> 73  -Paul
>> kb5mu@amsat.org
>>
>> ----
>> Via the amsat-bb mailing list at AMSAT.ORG courtesy of AMSAT-NA.
>> To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org
>
>--
>73, Roy
>
>Internet: w0sl@amsat.org
>Home Page: http://home.swbell.net/rdwelch
>----
>Via the amsat-bb mailing list at AMSAT.ORG courtesy of AMSAT-NA.
>To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org

----
Via the amsat-bb mailing list at AMSAT.ORG courtesy of AMSAT-NA.
To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org



AMSAT Top AMSAT Home