All Questions
3 questions
0
votes
1
answer
106
views
Is there a (legal) wireless transmission solution for my underground parkade anti-theft alarm?
I live on the 4th floor of a low-rise condo building with a concrete parkade beneath. We have a serious problem with bicycle theft -- someone is coming in late at night with an angle grinder, and ...
- 3
2
votes
1
answer
264
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How secure are station clocks (using DCF77)? [closed]
In the Netherlands, we have clocks at train stations like on the one on the image below.
In order to get the time as precise as possible, the clocks read the time from the DCF77 signal. (As far as I ...
- 223
3
votes
3
answers
574
views
Plausable deniablity / steganography in radio transmission
Normally in a wartime scenario etc. strict radio silence is observed to prevent the enemy from evesdropping on your transmissions.
Encryption solves a part of the problem. Now the enemy cannot ...
- 213