[Elecraft] Power Readout Discrepency

[Dave]

Parker

In the Elecraft K2 (or KAT2) manual I seem to remember mention of the power
output accuracy not being too great without the KAT2 auto atu. For what it's
worth, I measure the following out of my basic (10 Watt) K2 with KAT2
included:

160m 11W, 80m 11W, 40m 10W, 30m 10W, 20m 9.8W, 17m 9.8W, 15m 10W, 12m 10.5W
and 10m 10W. These are measured on a Racal 9301 RF millivoltmeter via a
resistive tap and are for an indicated power level of 10 Watts on the K2,
supply voltage of 13.6

These figures seem quite reasonable to me.

Dave, G4AON


----- Original Message ----- 
From: "Parker Buckley" <pbuckley@woh.rr.com>
To: "Don Wilhelm" <w3fpr@peoplepc.com>; <elecraft@mailman.qth.net>
Sent: Sunday, May 18, 2003 9:31 PM
Subject: Re: [Elecraft] Power Readout Discrepency


> Don,
>
> I guess I'm doing exactly what you describe.  I've read, and
> heard from others that the powered displayed, or requested
> power, should be accurate within maybe 10%.  Given that my
> wattmeters could be off a similar amount, and even in an
> additive manner, it seems that I'm still wide of the mark,
> especially since all the external meters agree fairly well.
> Ron AC7AC referred me to an interesting application note
> that sheds some additional light on the subject.  I'm not
> expecting miracles, but I would like a little better
> agreement between indicated and actual power levels.  Maybe
> it's a waste of time, other than as a learning experience
> ( I have plenty), but I may still try a different diode.
> Thanks very much for the reply.
>
> Parker WD8JOL