[Elecraft] Thoughts on internal vs external ATU for K3

[Don Wilhelm]

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

callen1155 wrote:
> Thanks guys for all the info. 
>
> I have one other question about the ATU use with two antennas. 
>
> Say I have two antennas connected to the ATU , one is a dipole (non
> resonant- need the ATU to 'match') and the other antenna is a Hustler BTV6
> (which i've just purchase having never used a vertical) which is supposedly
> resonant across all it's operating bands. So, i assume I don't really need
> to use the ATU 'tune/match' functionality for the Hustler (it's just
> providing the connector).
>
> So can i have the ATU 'activated' for the dipole antenna (antenna A) but
> non-activated for the hustler (ant B)?  Question would apply to both the K3
> and K2 ATU's.
>   
>