[Elecraft] KAT500 operation?

[Mike Hagele AC6JA via Elecraft]

I have to transmit for a brief second after I switch bands for the tuner to 
 switch to the new setting.  I'll usually just hear a click and it's  done.
But I thought I read somewhere that the tuner would update to the new  
settings when switching bands/frequencies automatically without having to  
transmit a carrier.
I have the Elecraft auxilliary cables and the K3 and KPA500 bands track  
properly.
 
Mike  AC6JA
 
 
In a message dated 6/14/2014 4:29:46 P.M. Pacific Daylight Time,  
k6dgw at foothill.net writes:

On  6/14/2014 12:11 PM, Mike Hagele AC6JA via Elecraft wrote:
> I am using a  K3 and KPA500 with the KAT500. I also have the KAT500
> mode set to MAN.  I thought that the firmware was supposed to switch
> the tuner  automatically when you switch bands? After I go to a new
> band, I need  to tap my key  momentarily to get the tuner to tune to
> the new  frequency. Is this  normal? Let me know as I thought the
> tuner  would remember the presets when  QSY'ing to a new frequency?
> Any  help would be appreciated. Thanks.

Hmmm ... I have the control cables  ... K3-->KAT500/KAT500-->KPA500,
I've trained my KAT500 for all 3  antennas on all the bands that each of 
them work on, and I run the KAT500  in MAN.  All indications are that the 
KAT500 recalls the correct  solution for the frequency when I QSY to a 
new frequency or  band.

I'm hardly an expert on the insides of Elecraft firmware, and I  suppose 
it could be recalling on very first sign of RF and doing so very  quickly 
so that I don't notice it, but I really don't think so.

I  do notice when changing bands that the K3 power control sometimes 
takes a  dit or two to settle to the correct drive power ... often that 
first dit  will blink the 600 [occasionally 700] watt LED.

73,

Fred  K6DGW
- Northern California Contest Club
- CU in the 2014 Cal QSO Party  4-5 Oct 2014
-  www.cqp.org

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