[TRLog] RIT step size

[Gilbert Baron]

Tree N6TR wrote:
> 
> VE7CQK writes:
> 
> > Speaking of ts940's... I have noticed that LogEQF  will qsy reliably
> > whereas TRlog won't. With EQF if you use the pgUP/pgDown keys it will
> > move up or down one step, but with TR if you hit the shift keys the
> > change is a number of steps and not necessarily the same number.
> > Also, sometimes the frequency change will not stop, but keeps creeping.
> >
> > Any ideas as to the algorithm differences?
> 
> It sounds like EQF moves one step for every time you press the
> pageup/down keys.  TR works differently as it is sending
> QSY commands to the radio as long as you hold one of the
> shift keys down.
> 
> So, how far it will move depends on how long your press the
> shift key.
> 
> When you say it keeps creeping, does that mean it keeps going
> for a short (less than a second) length of time after you have
> let go of the shift key - or does it mean it continues to slowly
> move well after you have let go?
> 

It depends on how long I have been holding it. The longer I hold the
longer it goes. It can go for up to 3-5 seconds (not timed yet) as a
guess.

> I believe that the 940 can't keep up with the commands as fast
> as TR sends them (again - tuned to the rate that the 850 can suck
> them up).  Because of this, the radio will continue to QSY until
> it has processed all of the commands in its buffer.  This will
> result in it overshooting the desired frequency.
> 

I agree here.


> Tree N6TR
> tree@contesting.com
> 
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-- 
Gil gbaron@sparc.isl.net 
Bailar es vivir
http://www.geocities.com/Yosemite/Trails/4168

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