[Boatanchors] Radio Signal scrambling

[KA2PTE]

Sounds like it maybe the same. Some things you can make out where he says 
180 degrees,
altitude, feet etc during the playback. Other things are really distorted, 
and there's some
huge noise splashes that almost wound like a really bad loose mike wire. I 
thought perhaps
the gear was defective, but when I heard the other 2 stations talking fine, 
I out ruled it.
Unless the problem was on their tx side , but they seemed to be 
communicating with each other ok.

--
Steve Hearns [ KA2PTE ]


----- Original Message ----- 
From: "Brian Harris" <cosmophone at yahoo.com>
To: "KA2PTE" <ka2pte at 3950.net>
Cc: <Boatanchors at mailman.qth.net>
Sent: Monday, January 10, 2022 7:19 PM
Subject: Re: [Boatanchors] Radio Signal scrambling


My former employer, Philips Semiconductors, used to make a 
scrambler/unscrambler chip designed for cordless phones to give users some 
privacy. There were maybe ten programmable inversion choices (frequencies). 
I have a set of demo boards and some of the chips around here.  The 
resultant scrambled audio almost seems intelligible but really isn’t.

WA5UEK