[Elecraft] KPA-500 high gain modification?

[W4GRJ]

Another example, MARS operators are not governed by the FCC.

Jack
W4GRJ / AFA4DG


On Mar 15, 2012, at 18:32, Oliver Dröse <droese at necg.de> wrote:

> Great Alan, nice idea with the manual! ;-))
> 
> Anyway, a very big part of this world's ham population is not bound to FCC 
> rules. So no need to make it public how to modify, just publish the 
> schematics or send them out on request without pointing out something and 
> Elecraft should be safe?
> 
> My KPA500 is serving me very well on my remote station so also no chance to 
> take the PA apart again and have a look myself and just buying a second one 
> without knowing it is possible might be a bit too expensive to find out. 
> ;-)) But I would buy a second KPA500 in a heartbeat if I knew I could modify 
> it for 10 watts drive for full output!
> 
> 73, Olli
> 
> 
> 
> ----- Original Message ----- 
> From: "Alan Bloom" <n1al at sonic.net>
> To: "Oliver Dröse" <droese at necg.de>
> Cc: <elecraft at mailman.qth.net>
> Sent: Thursday, March 15, 2012 10:58 PM
> Subject: Re: [Elecraft] KPA-500 high gain modification?
> 
> 
>> On Thu, 2012-03-15 at 21:54 +0100, Oliver Dröse wrote:
>> ...
>>> Three big reasons I can think of that Elecraft does not want to release 
>>> the
>>> schematics:
>>> a.) To keep them hidden for the competition (quite understandable).
>>> b.) It would probably put down sales of the KPA3 a bit (hmmm).
>>> c.) If somebody modifies it themselves it will be almost impossible to
>>> support it in case of problems (quite understandable, too).
>> 
>> The other reason is they might get in trouble with the FCC if they make
>> it too easy to modify.
>> 
>> Many years ago when the CB craze was at its height, a manufacturer who
>> shall remain nameless came out with a new transceiver.  On page 1 of the
>> manual was an illustration of the underside of the chassis with a big
>> arrow pointing to a certain wire.  "Do not cut this wire or the
>> transceiver will transmit on 11 meters."
>> 
>> They didn't get away with it.  :=)
>> 
>> Alan N1AL
>> 
>> 
>> 
>> 
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> 
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