[Elecraft] K3: 106W on 6m

[Jim Brown]

On 5/13/2011 12:21 PM, Stephen Prior wrote:
> I have only just noticed that on 6m only, the maximum power output
> that can be dialled up is 106W.  110W on all other bands.

I would be VERY VERY interested in how you can reliably resolve the 
difference between 110 watts and 106 watts, or even how you're certain 
it's 106 watts.  The accuracy of a Bird 43 wattmeter is 5% of full 
scale. To measure 106 watts you need a 250W slug. 5% of that is 12.5 
watts.  Where did you get that slug? Do you have any assurance that it 
was calibrated?

Perhaps another wattmeter?  Has it been calibrated against a known 
standard?  Do you know the frequency response of that meter?  That is, 
if it's calibrated at 14 MHz, is it also correct at 28 MHz?  At 50 MHz?  
How do you know?  That is, what voltage or current reference are you 
using to determine it?  When and where was that voltage or current 
reference last calibrated?

73, Jim Brown K9YC