[Elecraft] KXPA100 with other QRP rigs...

[Phil Hystad]

Thanks.

phil, K7PEH

On Mar 27, 2014, at 10:07 AM, Igor Sokolov <ua9cdc at gmail.com> wrote:

> Phil,
> With 1 W drive I get around 25-30 W on 15 and 10 m bands and close to 50W on 20 m band from KXPA100
> 
> 73, Igor UA9CDC
> 
> ----- Original Message ----- From: "Phil Hystad" <phystad at mac.com>
> To: "Walter Underwood" <wunder at wunderwood.org>
> Cc: "Elecraft Reflector" <Elecraft at mailman.qth.net>
> Sent: Thursday, March 27, 2014 10:24 PM
> Subject: Re: [Elecraft] KXPA100 with other QRP rigs...
> 
> 
> Yes, but that does not answer my question.  I could have been more clear I guess.   I am thinking that this 3.5 to 7 watt range is to achieve 100 watts output.  I am asking about, say, 1 watt drive and certainly I expect the output to be lower.
> 
> phil, K7PEH
> 
> 
> On Mar 27, 2014, at 9:21 AM, Walter Underwood <wunder at wunderwood.org> wrote:
> 
>> This can be answered by reading the specs in the manual.
>> 
>> "Drive Power: 3.5 to 7 watts, typical, for 100 W ± 1 dB output"
>> 
>> wunder
>> K6WRU
>> 
>> On Mar 27, 2014, at 9:17 AM, Phil Hystad <phystad at mac.com> wrote:
>> 
>>> Has anyone used the new KXPA100 100-watt amplifier with other "simple" QRP rigs?  By simple I am thinking of as simple as the Norcal 40A and maybe as complex as the Elecraft K1.
>>> 
>>> Two issues that I can think of:
>>> 
>>> 1.  RF Drive.  Is 1 to 2.5 watts RF sufficient to drive the KXPA100 cleanly?
>>> 
>>> 2.  Key out.  Most of these simple rigs (as far as I know) do not have an amp keying interface.  It would be nice if they did to QSK key the KXPA100 (thus, driven by the rigs electronic keyer).
>>> 
>>> 
>>> Is it hard to put a key output line in something like the Norcal 40A or maybe the KX1?
>>> 
>>> Thanks for your comments.
>>> 
>>> 73, phil, K7PEH
>>> 
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>> 
>> --
>> Walter Underwood
>> wunder at wunderwood.org
>> 
>> 
>> 
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> 
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