[Elecraft] KPA-1500 ATU operation

[Bob McGraw K4TAX]

Yes I got caught with using reference to an older manual on this topic.   my oops

Bob, K4TAX


Sent from my iPhone

> On Dec 11, 2019, at 11:50 AM, charles at k5ua.com wrote:
> 
> I should have checked for a new manual since the manual that came with my KPA-1500 has 20 Kc bins which I see are now 10 Kc bins.  In addition, the tuning frequencies have been changed to 10 Kc increments.  I think that is why I was getting unexplained results from the tuner as I tuned across the band.  I will "re-teach" the KPA-1500 using these new parameters.
> 
> Just to make sure, however, does everyone agree the current concept is the first bin on 80m would be 10 Kc wide (3.500 to 3.510) and the correct tune-up frequency to "teach" the KPA-1500 for that bin would be 3.505 Kc ?
> 
> Secondly, the KPA-1500 would proceed to the next "taught" tuning parameters (at 3.515) when the xcvr frequency would cross into the next bin slightly higher than 3.510 ?
> 
> Would appreciate all interest parties to agree or disagree with this scenario.
> 
> Thanks for all the comments, I'm glad Electraft made the bin size smaller because feedpoint impedances can change rapidly on 80M.
> 
> Thanks, K5UA
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