LinkBack Thread Tools Search this Thread Display Modes
Prev Previous Post   Next Post Next
  #3   Report Post  
Old October 9th 06, 11:14 PM posted to comp.sys.ibm.pc.hardware.storage,alt.comp.hardware,sci.electronics.equipment,rec.radio.amateur.misc
external usenet poster
 
First recorded activity by RadioBanter: Jul 2006
Posts: 18
Default How detect if MP3 player is recording in your room? [OT]

Joey wrote

Suppose someone visited your office or home and
tried to make a voice recording using a hidden recorder.


If they used a older-style dictation machine based on tape
then you could detect the electromagnetic transmissions
from the dictation machine when it was recording.


In practice that was always a lot easier to say than to do.

But how would you detect if someone was secretly recording
with an MP3 player that recorded to flash memory?


In theory any electronic device will produce some
EM so at least in theory that can be detected.

In practice there is so much of that stuff in any
normal room anyway that its just not feasible.

Is there some transmission which could be detected?
Perhaps some low power ultra high frequency from chip refresh cycles?


Fraid not.


 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules

Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Recording the back of my scanner ... weird voices [email protected] Shortwave 95 September 1st 06 01:06 AM
Roger Wiseman's Greyhound Men's Room Band coughing mane General 1 September 6th 03 01:36 AM


All times are GMT +1. The time now is 09:14 PM.

Powered by vBulletin® Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Copyright ©2004-2025 RadioBanter.
The comments are property of their posters.
 

About Us

"It's about Radio"

 

Copyright © 2017