[Elecraft] [KX3] Screwdriver Antenna Tuning ??

[Wayne Burdick]

We've already provided the needed hardware for this in the KX3, so an  
interface could be supported. It may take some time to add the needed  
control firmware.

73,
Wayne
N6KR

On May 27, 2011, at 8:19 AM, Phil Hystad wrote:

> The KX3 surely looks like a nice mobile rig that may replace my  
> IC-706....
>
> But, I would need a good screwdriver antenna tuning interface.   
> Currently, I use the Turbo-Tuner by N2VZ which is fitted to the  
> IC-706 tune control.  I have a Hi-Q 4/80 antenna mounted on my  
> pickup truck.
>
> So, several questions:
>
> 1.  Would there be a tune control interface on the KX3?
> 2.  Would Elecraft consider building a screwdriver antenna interface?
>
> Just to be clear on what I mean by screwdriver antenna interface ---  
> a device that uses the transmitter's tune control circuit to switch  
> on a low power signal and measure the SWR (usually via reflected  
> voltage) and switch on the screwdriver antenna drive motor adjusting  
> the center loading coil tap until a minimum SWR (under 1.5:1) is  
> reached where it turns off the drive motor and turns off the  
> transmitter's low power signal.
>
> I guess if Elecraft did not come out with a screwdriver antenna  
> interface that some talented electronics guru on this forum might do  
> so.
>
> 73, phil, K7PEH
>
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