[Elecraft] KPA500 Combiner

[Vic Rosenthal K2VCO]

My thought is that connecting two standalone amplifiers, each with its 
own protective circuits, bias supplies, etc. with a combiner is kludgy 
and likely to lead to problems.

Now the KPA1500 prototype -- that was neat.

On 3/3/2014 9:33 AM, David Gilbert wrote:
>
> I really don't find those kinds of generalizations very constructive ...
> or accurate.  LOTS of hams live where putting up an additional kilobuck
> worth of aluminum is out of the question due to space or neighborhood or
> aesthetic considerations.   An extra 3 db of transmit power can make a
> noticeable difference for them without violating those other
> considerations, especially if their local noise levels are low on
> receive.  Whether that is worth $1K to them will vary from ham to ham.
>
> Besides, for many hams who already have decent antennas on a decent
> tower, it would probably take considerably more than $1K to get that
> extra 3 db out of more aluminum.
>
> Lastly, if you don't think an extra 3 db can represent a significant
> improvement on HF, check out http://www.ab7e.com/weak_signal/mdd.html
> Anybody who is an active contester or DXer on HF will often find that
> extra 3 db useful in a pileup.
>
> 73,
> Dave   AB7E


-- 
73,

Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco/