I just heard about something that I thought would be a good addition to this echomail network. Its about non-typical TSCM fox hunting, or TSCM bug detection. You may not have been aware but electromagnetic radiation sources produce harmonics in the ultra-sound spectrum above the spectrum of audio
that humans can naturally hear on their own. This works for radiating EM signals of most if not all types. Just go into a suspected surveilled area
and bring along an ultra-sound receiver and you will actually pick up scatter from the EM emissions leaking into the sonic frequencies, specifically ultra-sonic. So when Joe Blow the neighborhood spook tot spends 20K $ on
some sweet kit you can get shizz and giggles that you could detect the emissions yourself for a couple hundred.

Never stop imagining.

Peace.

--- Mystic BBS v1.12 A45 2020/02/18 (Linux/64)
* Origin: The Bottomless Abyss BBS * bbs.bottomlessabyss.net (700:100/33)

On 14 Jun 2022, warmfuzzy said the following...

I just heard about something that I thought would be a good addition to this echomail network. Its about non-typical TSCM fox hunting, or TSCM bug detection. You may not have been aware but electromagnetic
radiation sources produce harmonics in the ultra-sound spectrum above
the spectrum of audio that humans can naturally hear on their own. This works for radiating EM signals of most if not all types. Just go into a suspected surveilled area and bring along an ultra-sound receiver and
you will actually pick up scatter from the EM emissions leaking into the sonic frequencies, specifically ultra-sonic. So when Joe Blow the neighborhood spook tot spends 20K $ on some sweet kit you can get shizz and giggles that you could detect the emissions yourself for a couple hundred.

Never stop imagining.

Peace.

--- Mystic BBS v1.12 A45 2020/02/18 (Linux/64)
* Origin: The Bottomless Abyss BBS * bbs.bottomlessabyss.net
(700:100/33)

Often cheaper is better.
One thing I've found to be quite useful over the years is a small AM radio. I have been using them for checking for RF interference for decades. I use one all the time for checking the horizontal oscillator on CRT Televisions, diagnosing pulse power supplies. As a TSCM device it would be useless for wired analog bugs but for modern digital devices it could be a cheap and effective tool. Try holding it near any digital device and interference will be easily received anywhere from a few inches away to several feet.

... I'm not a procrastinator, I'm just waiting for the right moment

--- Mystic BBS v1.12 A49 2023/04/30 (Linux/64)
* Origin: The Bottomless Abyss BBS * bbs.bottomlessabyss.net (700:100/33)