On 9/1/2017 7:01 AM, Jim Sheldon wrote:
> Naw, he just figured out a practical way to use it in smaller radios by
> the invention of the narrow bandwidth, very steep skirted "mechanical"
> filter to lop off the unwanted sideband (if you consider the radios of
> that day smaller - LOL). The real
erols.com>
To: Elecraft@mailman.qth.net
Sent: 9/1/2017 8:09:55 AM
Subject: Re: [Elecraft] KX2, spy radio
And here I thought Art Collins invented SSB, like algore invented the
internet (wink-wink)
Chas
(For all who take life too seriously this WAS intended to be humorous)
-Original Messag
Sublette
Sent: Friday, September 01, 2017 8:46 AM
To: Elecraft Reflector <Elecraft@mailman.qth.net>
Subject: Re: [Elecraft] KX2, spy radio
As a former CT — I enjoyed the web page. Thanks for sharing.
Dave, K4TO
> On Sep 1, 2017, at 1:09 AM, Mike Morrow <k...@earthlink.net> wrote:
As a former CT — I enjoyed the web page. Thanks for sharing.
Dave, K4TO
> On Sep 1, 2017, at 1:09 AM, Mike Morrow wrote:
>
> Chas wrote:
>
>> SSB would have been the equivalent of encryption.
>
> Not even remotely so...SSB technology goes back decades before WWII.
>
>
Chas wrote:
> SSB would have been the equivalent of encryption.
Not even remotely so...SSB technology goes back decades before WWII.
From Wikipedia:
"The first U.S. patent for SSB modulation was applied for on December 1, 1915
by John Renshaw Carson. The U.S. Navy experimented with SSB over
Here's a 1970-era small western world 'clandestine' set called the AVCO
TAR-224A:
http://www.cryptomuseum.com/spy/tar224/
It's about three times the bulk of the KX3, which is very small for the era and
not too large even by today's standards. It puts out 20 watts A1 or A3 from 2
to 24 MHz,
: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Stephen Peterson
Sent: Thursday, August 31, 2017 9:34 PM
To: Elecraft@mailman.qth.net
Subject: [Elecraft] KX2, spy radio
Imagine what the WWII resistance/spies would have given for a KX2! Fun and
interesti
31, 2017 9:34 PM
To: Elecraft@mailman.qth.net
Subject: [Elecraft] KX2, spy radio
Imagine what the WWII resistance/spies would have given for a KX2! Fun and
interesting to look at the equipment they were using.
Steve, Ki7L
__
Elecraft ma
Imagine what the WWII resistance/spies would have given for a KX2! Fun and
interesting to look at the equipment they were using.
Steve, Ki7L
__
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