[Elecraft] Output power on K2 not stabel

[Dick Grolleman]

Hi gentelmen

More info

I have been testing my K2 on the power issue.
I have the following findings
It is stabel on low power. I set it to 5 watt, press tune and it is stabel. 
turn the power up to 50 watt, and it goes from 42 to 50. stop the tuning, 
press tune again and the power is 28 watts and going down to 20. Turn it op 
to 50 again, and stop tuning. press tune again after a few seconds and again 
is 28 watt and goes down to 20. turn it up again, and it repeats again, so i 
keep increasing the power. but if it is on 50 watt is is quit stabel. Then 
start transmiting, and the power varies from 40 to 70watt.
never noticed this before as it is the first time I use the radio witn an 
amp. But I does not matter if the amp is on or not. works fine on 100 watt

Maybe this helps.

many thanks 73 de Dick


----- Original Message ----- 
From: "Ron D'Eau Claire" <ron at cobi.biz>
To: "'Dick Grolleman'" <groll064 at planet.nl>; <elecraft at mailman.qth.net>
Sent: Friday, April 11, 2008 4:17 AM
Subject: RE: [Elecraft] Output power on K2 not stabel


> Excellent suggestion. Hopefully you have a dummy load you can use with the
> amp to see if you're getting more stable results without your antenna.
>
> The issue that involves tweaking the resistor is one that might cause the
> output power to vary a few watts - maybe run between 48 and 53 watts  when
> set to 50 watts output. That's enough to bother some ops and the resistor
> tweaking can immunize that. This sounds like something quite different.
>
> Ron AC7AC
>
> -----Original Message-----
>
>
> Dick, I think you're getting RF back in to the K2 for it to change that
> much. Since it works OK bearfoot.
>
> Kurt
>
>