[Elecraft] KPA500 question

Stephen Bloom sbloom at acsalaska.net
Wed May 7 10:48:50 EDT 2014


Yeah, apparently they prototyped a single tube (can't remember what the
final was) KPA-1500 years ago ..but never went anywhere with it.  I have the
KPA500 and an Expert 2k-FA and they both play perfectly with the K3.  The
KPA500 is about half the weight, a third the price, and much much quieter.
High power solid state is still newish technology for Ham Radio application.
Also remember, that a lot of the world has 400-500W output limits, so the
market for higher power amps is somewhat limited.    I had discussed with
the Elecraft folks when they were at Seapac last year.

73
Steve KL7SB



-----Original Message-----
From: Elecraft [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of David
Cole
Sent: Wednesday, May 07, 2014 6:13 AM
To: elecraft at mailman.qth.net
Subject: Re: [Elecraft] KPA500 question

Hi Slava,

I would guess that it is the first 500 watt rule...  The first 500 watts is
the best 500 watts you will ever use...  That and the entire device is a lot
cheaper to make, plus smaller...

--
Thanks and 73's,
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On Wed, 2014-05-07 at 08:06 -0400, Slava Baytalskiy wrote:
> Hello everyone!
> I'm a proud owner of a new K3/P3.
> Almost there...
> Can someone please explain to me the rationale behind the KPA500? Why
500W?
> Is there a tremendous difference between legal limit and about half of it
(which is what i hear KPA500 can do)?
> I understand the ease of use, how the amp follows the radio. I get all
that. But why half of max power?
> Chances are i won't be buying any more amps for the foreseeable future if
i get the KPA500 at Dayton this year, so i'd like to know that it will cover
everything i need it to (and i have no idea what that might be).
> 
> I hope this question isn't too confusing.
> I'm a new ham (almost a year new), so please be gentle.
> Thanks in advance!
> __________________
> Slava (Sal) B, W2RMS
> W2RMS at arrl.net
> 
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