[Elecraft] KPA1500 ATU Memories
Ray Spreadbury
ray2.s at btinternet.com
Mon Sep 9 12:23:21 EDT 2019
In my station I have a SteppIR yagi for 20M - 6M, a rotatable Optibeam
dipole for 30M & 40M and a wire dipole for 80m &160M. The SteppIR & Optibeam
are both resonant antennas & I use the KPA1500 in ATU Bypass.
However I need the ATU for the 80M wire dipole when moving from the CW end
to the SSB end of the band or for using the dipole on 160M.
A single output coax runs from the amplifier to an auto antenna switch
(using BCD codes) at the base of the mast.
The KPA1500 does not seem to remember which bands the ATU is in Bypass mode
& which bands are in ATU Tune mode.
If I forget to change the ATU setting in the heat of a Contest, the amp
switches into Standby with the Hard fault condition.
Can the KPA1500 ATU be made to remember whether the ATU is in Bypass or In
by band or have I just got to be more careful?
73 Ray G3XLG
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