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References: [ +from:rtty@w7ay.net: 44 ]

Total 44 documents matching your query.

41. Re: [RTTY] 45.45-baud ASCII, 1000-Hz shift. (score: 1)
Author: Kok Chen <rtty@w7ay.net>
Date: Tue, 9 Jan 2018 13:06:23 -0800
Looks like raw 8 bit data packets (one or more silent symbols in between the data packets) The start/stop bits are basically reduced to a "silence" bit or bits. It really is not a binary sequence per
/archives//html/RTTY/2018-01/msg00037.html (7,549 bytes)

42. Re: [RTTY] 45.45-baud ASCII, 1000-Hz shift. (score: 1)
Author: Kok Chen <rtty@w7ay.net>
Date: Tue, 9 Jan 2018 13:39:23 -0800
The part I couldn't figure out is why the 1 kHz tone is pretty clean, harmonics wise, while the 3 kHz tone has a strong 6 kHz component. In any case, the tones are not square waves. Without phase inf
/archives//html/RTTY/2018-01/msg00038.html (7,531 bytes)

43. Re: [RTTY] UPDATE Re: FSK Keying (score: 1)
Author: Kok Chen <rtty@w7ay.net>
Date: Mon, 26 Feb 2018 16:01:32 -0800
Psst.... don't tell them that a narrower transmitted signal is easier for the other end to copy too, Ed. I.e., you will be asked for fewer repeats. Practically all (well perhaps not MMTTY) RTTY demo
/archives//html/RTTY/2018-02/msg00178.html (8,929 bytes)

44. Re: [RTTY] Jitter (score: 1)
Author: Kok Chen <rtty@w7ay.net>
Date: Mon, 26 Feb 2018 16:28:13 -0800
Not necessarily much wider (it won't be narrower; think "entropy" :-). But it will sound "noisy" to ears that are used to clean RTTY. It is for a different reason that you want jitter to be low. You
/archives//html/RTTY/2018-02/msg00179.html (9,051 bytes)


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