[Elecraft] KX3 power reverts from 10W back to 5W

[Arno Dienhart]

All are good suggestions, this and the others. I will try them out and
report  back. At this point, my money is on my flimsy clips.

FTR, I do have an inline 7.5A fuse, automotive dual blade type.

To Matt: maybe I am still not communicating clearly. The SWR does not vary
ceteris paribus, only when I go on certain bands (or even only one band). I
didn't make a record of which one and how many but I did tune each band from
160 to 10m (except 60m).

The balun is specified for 200W (LDG). No metal contact along the feedline.
Antenna is 14 gauge, twin is 18 gauge, coax is RG-8x. Nothing else is
running off the battery (a UPS type).

-----Original Message-----
From: Ralf Wilhelm [mailto:ralf at super-deutschland.net] 
Sent: Friday, August 30, 2013 13:19
To: Arno Dienhart
Cc: <Elecraft at mailman.qth.net>
Subject: Re: [Elecraft] KX3 power reverts from 10W back to 5W

Hi Arno,

If your fully charged batt reads 11.4 V AFTER the KX3 has switched back to 5
W, the voltage reading with 10 W (maybe 50% more current?) will most
probably be below 11 V. 

I would suggest that you try to gradually increase the output power from 5
Watts and read the voltage and currents from the KX3s meters. This way you
will have a measure for the voltage drop and the series resistance in your
battery connection and power leads.

Greetings 

Ralf

DL6OAP