KPA 100 Bias Adjustment with Fan ON or OFF?

[raycollins]

I'm setting the bias currents on my KPA 100 following the instructions at the top of page 51 of Appendix G Rev H.  The paragraph states that 50 mA of the measured current increase is due to the fan running at low speed.  However, in the earlier "Fan Test" section, the fan has been set to "FAN nor" mode and so should not be running with the heat sink at a room temperature of approximately 17 deg C.  Am I missing something here?  

Thanks for your help,

Ray Collins M1FJL
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[Don Wilhelm-4]

Ray,

That statement is only made so you have some understanding of the
current draw that you will find.
Regardless of what the current level during receive may be, you will
adjust the bias pot for a 400 ma. increase in current during transmit
with no RF drive.  Be certain the K2 is in TEST mode.

73,
Don W3FPR

On 4/23/2013 5:43 PM, Ray Collins wrote:
> I'm setting the bias currents on my KPA 100 following the instructions at the top of page 51 of Appendix G Rev H.  The paragraph states that 50 mA of the measured current increase is due to the fan running at low speed.  However, in the earlier "Fan Test" section, the fan has been set to "FAN nor" mode and so should not be running with the heat sink at a room temperature of approximately 17 deg C.  Am I missing something here?
>
>

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