[Elecraft] Filters for K3

[Al Lorona]

> Which brings up another observation I've made ... for any given WIDTH, 
> the optimum FC for best intelligibility will be different depending upon 
> the characteristics of the voice you are trying to copy.  

> 73,
> Dave  AB7E

The way IF SHIFT controls have worked on radios for decades now has been that, as you turn in one direction away from the center knob position, you are both narrowing the bandwidth *and* shifting the apparent center frequency (what the K3 calls "FC"). Since the K3 has separate controls for WIDTH and SHIFT this is not easily done without having to adjust two controls.

A workaround (to return to the old way of thinking about IF SHIFT) is to set up macros that give you the desired WIDTH and FC with one button push. In this way you can emulate, for example, what the K2 does with its four pre-set filter settings per mode.

Al W6LX