As long as we are discussing hearing cw I'd like to ask a question that has been bothering me for many years. I am very sensitive to chirp, and that is not what I am referring to. When I listen to a good cw signal in the range of about 20-35 wpm I heard the dots and dashes as at slightly different frequencies. This may simply be some sort of psychological quirk unique to me. I am not even sure "slightly different frequencies" or tones is correct way to describe it. Realizing that I am not listening to a sinusoidal tone but sequences of short and long symbols and that long strings of dots will have wider sidebands than long strings of dashes, I wonder if this is relevant in any way. Most likely it is some sort of personal quirk. But I wonder if anyone on this reflector by any chance notices anything similar or has an explanation?
Bob W2WG -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Martin Gillen Sent: Wednesday, September 20, 2006 9:13 AM To: elecraft Subject: RE: [Elecraft] Hearing CW - Fundamental Keying Waveform? Hmm, > Any detectable chirp seems to drive some of today's ARRL "Official > Observers" into near apoplexy but I enjoy hearing it! That's interesting. Which FCC or ARRL guideline mentions chirp, or otherwise attempts to regulate the keying waveform? I had a look through our Canadian guidelines: RIC 2 - Standards for the Operation of Radio Stations in the Amateur Radio Service I can't find anything about chirp, although there is a clause about frequency stability, and I suppose that chirp could be defined as frequency stability over a period of time equivalent to a code element. But I rather think that it means drift and not chirp. So - as long as I keep to 6kHz bandwitdh and 1kHz on 30m, then it looks like I'm allowed to have chirp on my signal. Now where do I need to solder a small cap on the KX1 to introduce some nice distinctive chirp on my signal?... 73 Martin. VA3SIE. _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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 _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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
