You don't need to generate clicks to have a crisp CW tone. Elecraft uses a pretty much optimally shaped waveform (some version of a cosine function) and if I remember correctly the rise time is only about 2.5 msec, although I could be wrong about that last part. And while you may be careful not to use short rise/fall times when the band is active, in the past there have been folks on the contesting reflector who openly admitted they purposely generate clicks by shortening the rise/fall times to give themselves elbow room. I will always appreciate that Elecraft doesn't give those miscreants the means to pollute the band.
73, Dave AB7E On Mon, Jun 8, 2020 at 9:23 AM Richard Stutsman <[email protected]> wrote: > I for one would like to have some control over the rise/fall times. > > You want the cleanest (narrowest) of CW signals when operating on a crowded > band or in a contest - unless you're a rare DX station. Most of my > operations are 22wpm rag chews on very uncrowded bands. We're often the > only discernible signals on an entire CW band. And conditions are often > noisy with deep QSB. Why not allow those of us operating in those > circumstances to shorten the rise times a bit, which makes it easier to > copy in noisy conditions, when any close-in clicks or thumps aren't going > to bother anybody? Copying a 'soft' weak CW signal is like trying to read a > 'crisp' signal that's an entire S-unit weaker, IMO. > > My TS-590sg let's me do that, and I love it! > > Will the K4 sound as good as a Drake T4C? (Just askin'.) > > Rick N6IET > > > N4ZR wrote: > > > > > > Will the K4 have options for setting CW rise and fall times...? > > Hi Pete, > > Probably not. We've always been very careful to ensure our rigs have an > > exceptional clean, click-free CW signal. (Third-party testing bears this > > out.) Minimizing the bandwidth requires a very specific rise/fall time > and > > a hand-crafted sigmoidal shaping function in DSP. > > Colonel Sanders closely guards his fried chick recipe, Mrs. Fields won't > > reveal what's in her chocolate-chip cookies, and only selected firmware > > monks--sworn to secrecy--are privy to Elecraft's keying envelope > > coefficients :) > > 73, > > Wayne > > N6KR > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [email protected] > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
