[Elecraft] K3 switch macro update

[Ed Muns]

Many people also have the SUB on while SPLIT, so would be a second button
tap if they want to turn the SUB off as well.  Others turn off RIT during
SPLIT and would want that enabled again.  So, there is reason to "undo" or
"reverse" some macros.  Having a toggle function saves a Programmable
Function button.

That said, as you point out, not every command is a simple two-state
function and thus the toggle action may be ambiguous.  However, for macros
that contain only toggle commands, then a Programmable Function button can
be a single button toggle for that macro.  For example, this macro toggles
SPLIT/SUB/RIT on and off:

SWT13;SWT13;SWH13;SWT48;SWT45;RC

Of course, for those who want to move VFO-B to an offset frequency or
explicitly turn RIT/XIT on or off (rather than toggling it), a macro
"toggle" feature is needed.  

Ed - W0YK

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Ed Muns
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