[Elecraft] Thoughts on internal vs external ATU for K3

[WILLIS COOKE]

I have not tried that, but you can certainly push and hold the ATU Tune button and bypass the tuner whenever you like.  If you have two antennas connected you can change antennas with the ANT button.  Whether it would remember and change automatically I don't know and I would have to change some wiring to find out.  One thing that we have not mentioned is that the second SO239 and the relay to switch between two antennas is part of the KAT3, so if you want to have two antennas you need it.  The points people are making about the tuner at the antenna are certainly valid in many circumstances, but unless you are really hard pressed for funds there is no down side for having the KAT3 installed.  I am pondering buying one to install in my TS-440 for mobile.  I bought a MFJ-927 to use mobile, but I have not been able to make it work.
 Willis 'Cookie' Cooke 
K5EWJ 




________________________________
From: callen1155 <callen1155 at yahoo.com>
To: elecraft at mailman.qth.net
Sent: Wed, February 24, 2010 5:13:17 PM
Subject: Re: [Elecraft] Thoughts on internal vs external ATU for K3


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.

Thanks so much for all the help.
chuck
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