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Author Topic: Bug This!!  (Read 5047 times)
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WBear2GCR
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Brrrr- it's cold in the shack! Fire up the BIG RIG


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« on: January 01, 2009, 04:00:19 PM »
From the NSA web site:

“On August 4, 1945, Soviet school children gave a carving of the Great Seal of the United States to U.S. Ambassador Averell Harriman. It hung in the ambassador's Moscow residential office until 1952 when the State Department discovered that it was 'bugged.' "

http://www.audiodesignline.com/howto/173602214

 Grin

                 _-_-bear
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_-_- bear WB2GCR                   http://www.bearlabs.com
WA1GFZ
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« Reply #1 on: January 01, 2009, 04:31:51 PM »
I'm sure the battery was long dead powering tubes.
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w3jn
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« Reply #2 on: January 01, 2009, 06:37:40 PM »
It didn't use a battery.  It was completely passive.
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FCC:  "The record is devoid of a demonstrated nexus between Morse code proficiency and on-the-air conduct."
ka3zlr
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« Reply #3 on: January 01, 2009, 06:41:51 PM »
No wonder they're in trouble...Look who they listened to.... Grin
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WA1GFZ
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« Reply #4 on: January 01, 2009, 10:41:45 PM »
What was the range to a RX.
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KB2WIG
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« Reply #5 on: January 01, 2009, 10:49:14 PM »
FYI

http://www.spybusters.com/Great_Seal_Bug.html

If ya get the chance, the following is a good book and has some info on the 'Great Seal'

Spycatcher: The Candid Autobiography of a Senior Intelligence Officer (also Spycatcher), is a book written by Peter Wright, former MI5 secret service officer and Assistant Director, and co-author Paul Greengrass.


klc
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What? Me worry?
Steve - WB3HUZ
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« Reply #6 on: January 01, 2009, 10:57:26 PM »
It was a radar system. The greater the TX power, the greater the range.


Quote from: WA1GFZ on January 01, 2009, 10:41:45 PM
What was the range to a RX.
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WA1GFZ
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« Reply #7 on: January 01, 2009, 11:06:01 PM »
So did the bug place modulation on the reflected signal?
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Steve - WB3HUZ
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« Reply #8 on: January 01, 2009, 11:20:48 PM »
Yes. Cavity resonator.

Quote from: WA1GFZ on January 01, 2009, 11:06:01 PM
So did the bug place modulation on the reflected signal?
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WA1GFZ
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« Reply #9 on: January 01, 2009, 11:29:53 PM »
Yup, I read the article. A lot easier today with newer toys.
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K1ZJH
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« Reply #10 on: January 01, 2009, 11:48:15 PM »
Quote from: WA1GFZ on January 01, 2009, 11:06:01 PM
So did the bug place modulation on the reflected signal?


Yes. Kind of like the passive tag readers.  The microphone modulated the amplitude of the reflected signal. They were beaming a narrow microwave beam into the room from a van parked nearby. I'd imagine it had to be almost LOS to avoid losses and to receive the weak signal.
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ka3zlr
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« Reply #11 on: January 02, 2009, 02:24:38 AM »
Good Science why would you want it active continuously..

On Demand Spying...pretty sneaky these agencies...
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