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List:       elecraft
Subject:    Re: [Elecraft] KAT3 ATU question
From:       "John Sweeney" <n3wt () comcast ! net>
Date:       2014-09-28 1:08:27
Message-ID: 001301cfdab8$b6f37580$24da6080$ () comcast ! net
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Thank you Wayne.  I understand about the KAT3 now,    keep that wish list
going.    Now to decide if go with the KAT3 or KAT500.    I use a manual
tuner now.    While remote, kind of tuff  to get my dog to adjust the manual
tuner.  



73  John N3WT

-----Original Message-----
From: Wayne Burdick [mailto:n6kr@elecraft.com] 
Sent: Saturday, September 27, 2014 8:30 PM
To: John Sweeney
Cc: 'Elecraft Reflector'
Subject: Re: [Elecraft] KAT3 ATU question

The KAT3 doesn't recall LC settings just due to VFO rotation, although this
is on the wish-list. The K3 will, however, send frequency commands to an
attached KAT500 tuner as the VFO is moved.

The KAT3 does recall LC settings when you use certain controls, including
BAND UP/DN, FREQ ENT., M>V (memory recall), VFO A/B SWAP, VFO REVerse, etc.

Since the KAT3's relays are all driven at the same time (in parallel),
transmitting in a different part of the band loads new LC settings so
quickly that it doesn't interfere with CW element length.

73,
Wayne
N6KR




On Sep 27, 2014, at 3:22 PM, "John Sweeney" <n3wt@comcast.net> wrote:

> 
> Question regarding the KAT3, internal ATU in K3.  This is not clear to 
> me in the  product description.
> 
> Does the KAT3 retune along with the VFO frequency, once memories are
stored,
> without RF sent through it?   Or, is Tune with transmit RF required for
the
> ATU to sense the frequency and tune for best match?       I believe the
> KAT500 adjusts based on rx frequency, but not sure about the KAT3.  
> 
> Thanks
> 
> John , N3WT
> 
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