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KX2, spy radio

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Stephen Peterson

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
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Charlie T, K3ICH

Re: KX2, spy radio

SSB would have been the equivalent of encryption.

Much like cursive writing today is secret code for us "old" people.

Chas

-----Original Message-----
From: [hidden email]
[mailto:[hidden email]] On Behalf Of Stephen Peterson
Sent: Thursday, August 31, 2017 9:34 PM
To: [hidden email]
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
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NK7Z

Re: KX2, spy radio

That and counting change back...

73s and thanks,
Dave
NK7Z
http://www.nk7z.net

On 08/31/2017 07:56 PM, Charlie T, K3ICH wrote:

> SSB would have been the equivalent of encryption.
>
> Much like cursive writing today is secret code for us "old" people.
>
> Chas
>
> -----Original Message-----
> From: [hidden email]
> [mailto:[hidden email]] On Behalf Of Stephen Peterson
> Sent: Thursday, August 31, 2017 9:34 PM
> To: [hidden email]
> 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
> ______________________________________________________________
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Mike Morrow-3

Re: KX2, spy radio

In reply to this post by Stephen Peterson

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, and is all solid state with auto antenna tuner and Morse key built onto the front panel. (Sounds familiar.) This 47-year-old set will typically cost today more than a new full-house KX3 if you find one for sale! I have one...it's the provenance that attracts. Technically speaking, only its suitability for use in unfavorable environmental conditions gives it any advantage over a KX3.

Mike / KK5F

-----Original Message-----
>From: Stephen Peterson <[hidden email]>
>Sent: Aug 31, 2017 8:33 PM
>
>Imagine what the WWII resistance/spies would have given for a KX2! Fun and
>interesting to look at the equipment they were using.

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Mike Morrow-3

Re: KX2, spy radio

In reply to this post by Stephen Peterson

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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Dave Sublette

Re: 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 <[hidden email]> 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
> ______________________________________________________________
> Elecraft mailing list
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Charlie T, K3ICH

Re: 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: [hidden email] [mailto:[hidden email]] On Behalf Of Dave Sublette
Sent: Friday, September 01, 2017 8:46 AM
To: Elecraft Reflector <[hidden email]>
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 <[hidden email]> 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
> ______________________________________________________________
> Elecraft mailing list
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> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net Please help support this email
> list: http://www.qsl.net/donate.html Message delivered to
> [hidden email]

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Jim Sheldon

Re: KX2, spy radio

In reply to this post by Dave Sublette

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" <[hidden email]>
To: [hidden email]
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: [hidden email]
>[mailto:[hidden email]] On Behalf Of Dave Sublette
>Sent: Friday, September 01, 2017 8:46 AM
>To: Elecraft Reflector <[hidden email]>
>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 <[hidden email]> 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
>>______________________________________________________________
>>Elecraft mailing list
>>Home: http://mailman.qth.net/mailman/listinfo/elecraft
>>Help: http://mailman.qth.net/mmfaq.htm
>>Post: mailto:[hidden email]
>>
>>This list hosted by: http://www.qsl.net Please help support this email
>>list: http://www.qsl.net/donate.html Message delivered to
>>[hidden email]
>
>______________________________________________________________
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>Message delivered to [hidden email]
>
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Phil Kane-2

Re: KX2, spy radio

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 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.

Do not forget the other two members of what we secretly and snidely
referred to as the "Friday Night Poker Club": Barry Goldwater who got
the financing through The Congress for the SAC "Short Order" system, and
Arthur Godfrey who handled the public relations end of the program.
Brings back many memories.....

73 de K2ASP - Phil Kane
Elecraft K2/100 s/n 5402
"Skybird Skybird Do Not Answer"

From a Clearing in the Silicon Forest
Beaverton (Washington County) Oregon
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