[Trlog] RE: Incremental tuning from keyboard

[Tree]

On Mon, Mar 29, 2004 at 11:36:06AM -0600, VE5ZX wrote:
> Hi Tree,
> 
> > I think this is the case for all radios that support VFO increment and
> decrement
> > commands.  Go into the S&P mode and use the shift keys.
> 
> I have tried this on my Icom 736 but it does not seem to work. I have a 746
> Pro on order but it is not clear to me that it will work this rig either.
> 
> I cannot seem to identify a unique VFO increment command in the Icom command
> set for these rigs. However, is this command really needed? Would it not be
> possible to take the current frequency to which the rig is tuned and send it
> a new frequency composed of the current frequency +/- a increment/decrement?
> I would guess the update rate would be determined by the repeat key rate. Or
> am I missing a key design idea here?

The overhead associated with doing all of those commands over the serial port 
makes it pretty impractical.  I have tried using this technique to adjust the
RIT on some of the radios that don't have an RIT increment/decrement command
and it just doesn't work well enough.

Tree