Wayne published something a while back that if you push the "tune"
button very quickly after the first tuning stops, it will try again with
another algorithm that might result in a lower tuned SWR. This from the
release notes for firmware 1.75.
" * ATU MATCHING Improved: If you tap ATU TUNE a second time on the same
band/antenna within 5 seconds, a more extensive search is used that
may result in a
lower SWR. The original (fast) algorithm is unchanged. Further
improvements are planned."
73, Ken K3IU
~~~~~~~~~~~~~~~~~~~~~~~~~~
Rick Dettinger wrote:
I have just installed the KAT3 and it seems to be working, however, i
can only get a SWR of 4.0 on the K3 on my 40M end fed antenna. I know
the SWR with this antenna is very high, but I can get the SWR down to
2.5 with my K2 ATU. The K2 is using ALT tune to get there taking a
long time. I can understand that this could be a matter of chance,
since the tuners use discrete components, rather than adjustable
ones. I don't find much info on the KAT3 in the Installation
Instructions or the K3 Owner's Manual. Sheet 3 of the KAT3
Installation Manual, Introduction, says "Complete details for using
the KAT3 are included in the KXV3 Owner's manual." I can't find a
KXV3 Owner's Manual on the Elecraft site, only the Installation
Instructions and I don't have a KXV3. Do I need a KXV3 to use my
KAT3? Does the KAT3 have the equivalent of ALT tune on the K2? The
KAT3 seems to give up after a few seconds, while the K2 tries real
hard to get a good match. I can prune my end fed antenna but I may be
missing something here and would like to know.
Thanks and 73
Rick Dettinger
K7MW
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