[Elecraft] Need help with KX3 PF1 and PF2 Macros

Don Wilhelm w3fpr at embarqmail.com
Sun Mar 2 07:54:58 EST 2014


Glenn,

Doing a toggle itself is not too difficult, just set the macro to do the 
button press.
The impossible part is that one cannot read the state of mic bias in a 
macro and decide whether to turn bias on or leave it alone since bias is 
already set on.

The mic bias *can* be left on for digital modes in most cases.
If you are using an interface box, just make certain there is a DC 
Blocking capacitor in series with the AF output line - if there is none, 
add it.  A 10 uF electrolytic will normally work fine.

PTT is similar except that the menu has 3 positions - again there is no 
way for a macro to determine how it was previously set.

If you intend leaving both the microphone and the data mode interface 
connected, I would suggest that using a physical switch to disable the 
PTT button on the microphone would be a better solution (but that means 
building an adapter with the switch).
Leaving a microphone connected while operating data modes is not a good 
idea because the mic element will be live.
I prefer to build an interface that has a switch to change between the 
microphone and the soundcard output.  You might want to re-think your 
plans in light of these problems.

73,
Don W3FPR

On 3/2/2014 12:58 AM, WA7SPY wrote:
> What I want the KX3 to do is to program PF1 and PF2 to configure the KX3 to do the following:
> PF1 turn the Mic Bias Off, disable the Mic PTT, and put the KX3 into Data A Mode for PSK31
>
> PF2 turn the Mic Bias On, Enable the Mic PTT to up down and put the KX3 into CW mode.
>
> I see from the programming reference MD6; (Data A) MD3; (CW) MN135; (Mic Bias) MN082; (Mic BTN) MN255; (Exit Menu) )
>
> What I can not figure out is how to toggle the menu selections. Mic BTN bit0 disabled Mic Bias bit 4
>
>



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