[Trlog] CW speed commands
ua9cdc at r66.ru
Fri Dec 17 11:56:59 EST 2004
Jim, this is well known bug in auto -cq mode. Do not use speeds
up/down in auto-cq. Just press the button manually.
73, Igor UA9CDC
----- Original Message -----
From: "Jim Smith" <jimsmith at shaw.ca>
To: <trlog at contesting.com>
Sent: Friday, December 17, 2004 7:25 AM
Subject: [Trlog] CW speed commands
> Sometimes I want to send CQs with my call sent once at normal speed
> once at a slower speed. The idea being that, on Sunday afternoon,
> good ops will know what speed I'm comfortable at and, at the same
> to put out the welcome mat for the slower ones.
> So, I put the following into the F1 message memory:
> CQ CW MEMORY F1 = CQ TEST DE \
> <13><13><13><13><13>\<06><06><06><06><06> NST >
> This is supposed to slow the 2nd instance of my call down by 30%,
> it, and speed up again to the original speed (not by 30% - speedup
> to be 43% of the slower speed).
> It actually speeds up again to a speed a little faster than the
> speed. With auto-cq running the CQ starts running faster and
> each time it is played. Sounds a little comical unless you're
> in a contest.
> It appears that there may be some rounding or truncation errors in
> speed adjustment (is this integer arithmetic?) and that it may not
> possible to get back to exactly the same speed.
> But then, I routinely hit PgDn a few times for slow speed callers
> PgUp the same number of times to get back to normal speed and have
> noticed this problem when doing that. i.e. I always appear to end
> the same speed. It's possible, of course, that the same thing is
> occurring but over a long enough period of time that I don't
> I tried <03>SPEED---<04>\<03>SPEED+++<04> but it seems that the
> are executed first before any characters are transmitted, thus
> cancelling each other out.
> I don't want to slow down to a specific speed because I routinely
> my normal speed to suit conditions. I would like the slower speed
> reduce by the same ratio.
> Also, the change in speed produced by 5 CTRL-S characters is less
> the expected 5x6% = 30%. Hmm... maybe each 6% acts on the new
> e.g. if speed = 30 wpm one CTRL-S would produce 28.2 wpm, the next
> would produce 6% of that and give 26.5 and so on until 5 of them
> wpm. Well, I guess that makes sense.
> Any ideas as to how I can do the slow-down/speed-up thing without
> getting the bit between their teeth and galloping off into the
> 73 de Jim Smith VE7FO
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