K3: split freq: time study

[DOUGLAS ZWIEBEL]

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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[w7aqk]

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" <[hidden email]>
To: <[hidden email]>
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.
> _______________________________________________
> Elecraft mailing list
> Post to: [hidden email]
> You must be a subscriber to post to the list.
> Subscriber Info (Addr. Change, sub, unsub etc.):
> http://mailman.qth.net/mailman/listinfo/elecraft
>
> Help: http://mailman.qth.net/subscribers.htm
> Elecraft web page: http://www.elecraft.com
>

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[DOUGLAS ZWIEBEL]

Dave:

Thanks for your thoughts/suggestion!

I've been using this method for decades (but obviously, still willing
to try a new approach) and yet again, I have demonstrated that for the
vast majority of cases, there is simply no faster way to get to a
previously unknown discrete frequency than by using the keypad entry
method.

The auto-erasure of the SPLIT function when using the keypad entry
method is, in my opinion, something to be addressed (aka corrected?)
and I've sent this request to K3Support.  Maybe it's a "feature."  :-)

de Doug KR2Q

On Sun, Mar 2, 2008 at 3:58 AM, T. David Yarnes <[hidden email]> wrote:
> 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
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[Greg - AB7R]

Not a feature.  :)  Do you want it to be?  :)

It's on the list to fix.

73
Greg
AB7R


-----Original Message-----
From: [hidden email]
[mailto:[hidden email]]On Behalf Of DOUGLAS ZWIEBEL
Sent: Sunday, March 02, 2008 4:54 AM
To: T. David Yarnes
Cc: [hidden email]
Subject: Re: [Elecraft] K3: split freq: time study


Dave:

Thanks for your thoughts/suggestion!

I've been using this method for decades (but obviously, still willing
to try a new approach) and yet again, I have demonstrated that for the
vast majority of cases, there is simply no faster way to get to a
previously unknown discrete frequency than by using the keypad entry
method.

The auto-erasure of the SPLIT function when using the keypad entry
method is, in my opinion, something to be addressed (aka corrected?)
and I've sent this request to K3Support.  Maybe it's a "feature."  :-)

de Doug KR2Q

On Sun, Mar 2, 2008 at 3:58 AM, T. David Yarnes <[hidden email]> wrote:
> 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
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