[Elecraft] Side Effects of QRQ On The K3

[Vic Rosenthal K2VCO]

Fred,

I am sorry if you took my remarks personally. I didn't intend to be 
'correct' at anyone's expense. But this is a real issue.

You said "the odds that you'd ever encounter and notice its effects are 
vanishingly small unless you are a 60+ WPM full QSK operator." That is 
simply not the case: the problem starts showing up around 35 wpm, in 
either full or semi-QSK.

The only ways to mitigate it are to use QRQ mode or to use manual PTT 
rather than any form of QSK.

If the fellow who started the thread never operates CW over 30 wpm, or 
if he gets used to the limitations of QRQ mode (as I have) or if he uses 
a foot switch, then, yes, he will not notice the problem.


On 4/12/2014 8:39 PM, Fred Jensen wrote:
>
> I would normally top-post but hard in this case ...
>
> On 4/12/2014 7:48 PM, Vic Rosenthal K2VCO wrote:
>  > I don't agree. With ORQ off, once you exceed about 35 wpm it is not OK
>  > with TX DELAY at 8 ms either. I'm not a perfectionist, it sounds awful.
>
> Not sure what you don't agree with.  I said I almost never send above
> 35, and that's N1MM.  I rarely paddle above 25, hand dexterity issues
> caused by a poor choice of Dad. [for those who don't get that, I loved
> my Dad, he was really good to me, he was Danish, and it's genetic.
> Geesh, you never know these days!]
>
>  > Brian is correct that it doesn't matter whether you are using the
>  > internal keyer or an external paddle or keyboard, as long as you are
>  > using either semi- or full QSK.
>
> If I didn't say that, I'm sorry, I know that.  I run full QSK all the
> time, with KPA500, N1MM-Winkey or my paddles.  And yes, Brian is correct
> [well, I think, I haven't actually tried it, and I'm not at all sure I
> know what TX DLY is], but that's not the list item I was responding to.
>   Somehow, being "correct," even if it doesn't respond the the original
> question has become the current badge.  Probably not a good trend.
>  >
>  > Fred, I'm willing to bet that you have your WinKey USB set up to control
>  > the PTT -- or maybe you have a foot switch. You are not using either
>  > semi-QSK or full QSK. That is why you don't have the problem.
>
> How much are you willing to bet? :-))
>  >
>  > Try this: make sure you are using either full or semi-QSK. Turn on QRQ
>  > mode and send some V's at about 40 wpm. It should sound fine. Then hit
>  > RIT and send a few more. You'll see.
>
> Vic, I can't send V's at 40 WPM with my paddle any more, too many
> accumulated birthdays, could when younger.
>
> So FOTL ["Folks Of The List"] ... how about we get back to basics.  I
> was responding to David Cole, who has been moderately active on this
> list recently trying to figure out how to buy a K3 and what he wants
> with it.  I don't know David, but his questions all smacked of
> sincerity.  I think David is more concerned than he needs to be about
> the K3 he's ordered, probably 99% of us know he's going to love it.  He
> gets concerned about some of the peripheral threads on this list, all
> welcome, but we're a diverse group and not everything that someone is
> concerned about is our concern.
>
> Learning how to sort that out takes time and experience, and if we're
> lucky, some advice.  David wants a K3, he's done his research, but he's
> still sensitive to peripheral posts on the list that suggest he may have
> made a wrong decision.  How about we all have a little compassion for
> David and all the others like him.  This is a hard list to follow,
> especially if you might not be hugely technically knowledgeable.
>
> David, you will really enjoy your K3.  Just use it out of the box for
> awhile and get to know it.  You'll be able to figure out the rest, and
> you'll always have help here.
>
> 73,
>
> Fred K6DGW
> - Northern California Contest Club
> - CU in the 2014 Cal QSO Party 4-5 Oct 2014
> - www.cqp.org

-- 
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco/