[Elecraft] KAT3 ATU question

[Wayne Burdick]

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 at 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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