Security Basics mailing list archives
Re: A different kind of security problem?
From: bnottle () telus net
Date: 21 Jul 2005 23:28:56 -0000
Have you checked the music to see if it matches any local AM Radio station. This could be the source of the music. It only takes a strong AM signal, a semiconductor junction (Diode or Transistor) and perhaps a tuned circuit to detect (make audible) an AM radio signal (just think crystal set. It is likely that only one phone is resposible for injecting the sound. Poor grounding and or poor sheilding would b a factor. Trouble shooting would consist of getting the misic again and then listening for it to disappear as individual phones are disconnected. If one phone is the problem source, try replacing it with one known to work fine elsewhere, etc.
Current thread:
- A different kind of security problem? Smith, Keenan C. (Jul 19)
- Re: A different kind of security problem? NewYork User (Jul 20)
- <Possible follow-ups>
- RE: A different kind of security problem? Stephane Auger (Jul 20)
- RE: A different kind of security problem? Alan Greig (Jul 20)
- Re: A different kind of security problem? prod92a (Jul 21)
- Re: Re: A different kind of security problem? ayman_m_galal (Jul 21)
- Re: A different kind of security problem? bnottle (Jul 22)