[GreenKeys] Two questions

[Jim Haynes]

On Thu, 16 Jun 2011, tony j. podrasky wrote:

> running 850 Shift and some kind of encryption that I can't decode.
> They come in here 20 over S-9. Really cranks me off!
>
> If anyone has any idea as to what those stations are - and even
> better yet - where I can get a decoder, I'd really appreciate hearing
> from you.
>
The old PK-232 box has a signal analysis mode.  It's been a while since
I used one, but on those signals it often said they were synchronous.
In fact you can almost tell that by ear, since there isn't a regular
pattern of start and stop pulses.

Years back there were some trivial methods of encryption being used
just to prevent casual shortwave listeners from getting copy.  Things
like scrambling the order of the bits, or inverting some of the bits.
But you can bet if it is really, seriously encrypted you won't be able
to break the code.