[Elecraft] KX2, spy radio
Jim Sheldon
w0eb at cox.net
Fri Sep 1 10:01:27 EDT 2017
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 use of SSB came when General LeMay of
SAC adopted it for their world wide HF communications network and
propagation conditions during that time were so good that it was almost
impossible NOT to communicate anywhere you wanted to with SSB.
W0EB
------ Original Message ------
From: "Charlie T, K3ICH" <pincon at erols.com>
To: Elecraft at 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 Message-----
>From: elecraft-bounces at mailman.qth.net
>[mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Dave Sublette
>Sent: Friday, September 01, 2017 8:46 AM
>To: Elecraft Reflector <Elecraft at 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 <kk5f at earthlink.net> wrote:
>>
>>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 its radio circuits before World War I. SSB first entered
>>commercial service on January 7, 1927 on the longwave transatlantic
>>public radiotelephone circuit between New York and London."
>>
>>Mike / KK5F
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