Re: K3 TX Calib Dummy Load Recommendations

Posted by Bob McGraw - K4TAX on Aug 26, 2018; 1:02pm
URL: http://elecraft.85.s1.nabble.com/K3-TX-Calib-Dummy-Load-Recommendations-tp7644681p7644693.html

Try to find carbon resistors as newer film resistors may be reactive.   
Older carbon resistors have a tendency to migrate upwards in value.  Be
sure to check them with a meter.

73
Bob, K4TAX



On 8/26/2018 7:50 AM, Bill Frantz wrote:

> For my KX3, I built a dummy load from three 150 ohm 2 watt resistors
> and a BNC connector. The resistors are in parallel with a lead going
> to the center conductor of the connector. The other leads are folded
> back over the resistors and attached to the ground-side of the
> connector. The whole outside is then covered with a piece of coax
> braid. It does well on the antenna analyser test Bob, K4TAX suggests.
>
> It lives in a pocket of Rose's case and goes where the radio goes.
>
> 73 Bill AE6JV
>
> ---------------------------------------------------------------------------
>
> Bill Frantz        |"After all, if the conventional wisdom was
> working, the
> 408-356-8506       | rate of systems being compromised would be going
> down,
> www.pwpconsult.com | wouldn't it?" -- Marcus Ranum
>
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