[Elecraft] K3: split freq: time study

[T. David Yarnes]

Doug and All,

What do you get when you use the RIT control method?  Set 
the menu item "VFO OFS" to "On", and you can make some of 
those excursions much faster than your time, but not the 
really extended ones.  But you can't use that control if you 
are also using the RIT/XIT.

Dave W7AQK


----- Original Message ----- 
From: "DOUGLAS ZWIEBEL" <dougzzz at gmail.com>
To: <elecraft at mailman.qth.net>
Sent: Saturday, March 01, 2008 1:28 PM
Subject: [Elecraft] K3: split freq: time study


> Here is what I just timed (10 measures each category)
>
> Using the Keypad entry method previously described (VFO 
> A/B - touch
> the ENTER FREQ button, touch the keys for the discrete 
> QRG - touch the
> "enter" button - and touch VFO A/B button again to get 
> back on the
> right RX frequency).  Any amount of frequency excursion (1 
> kc or
> 200kc) took me, on average 4.9 seconds.
>
> Using the Coarse/Fine button and "dialing in" using VFO B 
> knob - for
> frequency excursions greater than 25kc, on average = 10.9 
> seconds.
> Methodology: Hit the coarse/fine button, use VFO B dial to 
> dial in
> "close" to the QRG, hit the coarse/fine fine button and 
> finish tuning
> in to the exact QRG.
>
> Just using VFO B for frequency excursions less than 
> 10kc...and dialing
> in to the exactly QRG (obviously somewhat proportional to 
> the total
> amount of excursion), on average = 6.3 seconds.  [no use 
> of
> coarse/fine button]
>
> So for maximum speed, use the keypad method.
>
> de Doug KR2Q
> PS...with appreciation to my younger daughter (12th grade) 
> who was
> kind enough to use her stopwatch to time me and call out 
> frequencies
> to go to.
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