[Elecraft] K1/K2 question

Don Wilhelm w3fpr at embarqmail.com
Sat Nov 15 16:25:22 EST 2008


Ken,

Not possible.  The KPA100 must communicate with the base K2 for band 
selection, power control, T/R switching, and other functions.  The K1 
does not have the necessary signals to communicate with the KPA100.
The KPA100 was designed as an integral part of the K2 rather than 'just 
an amplifier'.

With a *lot* of modification, the KPA100 could be made to work 
standalone, but the amount of modification is so great that it would not 
be cost effective (and IMHO the result would be a kludge).

A higher power linear amplifier could be used with the K1.  If the amp 
is truly linear and develops 1000 watts with 100 watts of drive, it will 
also develop 100 watts of drive with 10 watts input or 50 watts with 5 
watts input.

73,
Don W3FPR

Ken Kopp wrote:
> I have an off-reflector friend who's just built a K1.  He asks if it 
> can be mated with a KPA-100, perhaps in an EC-2?
> Off hand, I'd say there are ... at least ... antenna relaying
> issues involved.
>
> He realizes that if this is possible he might not achieve the
> full 100W output from the KPA-100.
>


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