KPA-1500 ATU operation

Posted by charles-2 on Dec 10, 2019; 11:03pm
URL: http://elecraft.85.s1.nabble.com/KPA-1500-ATU-operation-tp7656949.html

After saving my KPA-1500 ATU impedance matching parameters on 80M at 20
Kc intervals (3.510, 3.530, 3.550, 3.570, etc, etc), I expected that the
KPA-1500 ATU would automatically switch to the next set of L/C values at
the midpoint of the 20 Kc segments (like 3.520, 3.540, 3.560, etc, etc),
but I find that it switches randomly, sometimes just 2 Kc away from the
main tuning frequencies.  Does anyone have information on how the ATU is
supposed to work when it is polling the xcvr for frequency?

Thanks, K5UA
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