[Elecraft] Thoughts on internal vs external ATU for K3
K6LE
k6le at mac.com
Wed Feb 24 23:00:22 EST 2010
Have to disagree Don!
I have a ladder line fed doublet (with outside balun) attached to Ant 1 and an R7 on Ant 2.
I have Ant 1 set to use the ATU and Ant 2 Bypassed since I don't need the tuner for it.
When I switch between Ant 1 and 2 the ATU indicator comes on for 1 and off for 2.
Slick!
Rick
K6LE
On 2/24/2010, at 3:36 , Don Wilhelm wrote:
> Chuck,
>
> While you cannot have one antenna set to bypass and the other one for
> tuning - there is an easy way to accomplish that.
> Since the K2 and K3 tuners remember the settings for each antenna jack
> separately, just pre-tune the one you will not use for tuning into a 50
> ohm dummy load. Then when you select that antenna, the tuner is
> effectively bypassed.
>
> In practice, not all antennas are well matched on all bands - and that
> is particularly true of electrically short antennas, so you would likely
> want tuning on both antennas anyway.
>
> 73,
> Don W3FPR
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