Re: [digitalradio] . . . the other digital mode
Hello to all, CCW is a pure digital mode as CW when sent by a computer because it is coded as another digital mode at a defined speed and it is not difficult to decode (almost same technic as PSK31 decoding ). Now when CW is sent by a human being it is a very special digital mode let's say a fuzzy digital mode because the standard is not respected, the speed must be assessed and variations of dash and dot length must be taken into account (which is not simple). It is very complex for a program to decode human CW and it is not so good as a human ear (this situation being preferible...). Note: program decoding does not work at all as a human decoding: the second one decodes entire characters without any analyse of the number of dots and dashes when the first one decomposes in dots and dashes before deciding for nothing or for a character. 73 Patrick - Original Message - From: Siegfried Jackstien To: digitalradio@yahoogroups.com Sent: Monday, June 01, 2009 11:45 PM Subject: Re: [digitalradio] . . . the other digital mode cw is digital on off on off or dit dah dit dah . sound there sound away ... so where is the analog compound??? - Original Message - From: S.J. To: digitalradio@yahoogroups.com Sent: Monday, June 01, 2009 5:15 PM Subject: [digitalradio] . . . the other digital mode CW is an Analog Mode . . . 73, Sherm KB9Q
Re: [digitalradio] . . . the other digital mode
Isn't hand sent Morse Code a jittery PAM / PWM combo? A computer can generate a less jittery code. But machine reception is something else. PAM is the simplest, but the worst to decode reliably digital modulation in the presence of noise and interference, which are the rule at least on HF. 73, Jose, CO2JA --- J. Moen wrote: Having learned CW in 1959 and computer programming in 1968, I take your point. In the broadest sense, CW is binary. It is true most digital modes have fairly precise timing, whereas CW, especially sent with a straight key, can be quite the opposite. I have been doing my best to stay away from use of PC programs that generate CW, as well as those that can decode it. I realize that's a loosing battle. DXers and Contesters are moving to these programs for obvious reasons. In everyday Ham language, usually digital modes mean a computer program is generating the transmitted information and another one is decoding it on the other end. So I would exclude traditional CW from my personal list of digital modes for that reason. But in fact, since computer generated and decoded CW is now possible, it really should be included in the list of digital modes, shouldn't it? Jim - K6XZ - Original Message - *From:* Siegfried Jackstien mailto:siegfried.jackst...@freenet.de *To:* digitalradio@yahoogroups.com mailto:digitalradio@yahoogroups.com *Sent:* Monday, June 01, 2009 2:45 PM *Subject:* Re: [digitalradio] . . . the other digital mode cw is digital on off on off or dit dah dit dah . sound there sound away ... so where is the analog compound??? - Original Message - *From:* S.J. mailto:felineveterinar...@yahoo.com *To:* digitalradio@yahoogroups.com mailto:digitalradio@yahoogroups.com *Sent:* Monday, June 01, 2009 5:15 PM *Subject:* [digitalradio] . . . the other digital mode CW is an Analog Mode . . . 73, Sherm KB9Q VI Conferencia Internacional de Energía Renovable, Ahorro de Energía y Educación Energética 9 - 12 de Junio 2009, Palacio de las Convenciones ...Por una cultura energética sustentable www.ciercuba.com
[digitalradio] . . . the other digital mode
CW is an Analog Mode . . . 73, Sherm KB9Q
Re: [digitalradio] . . . the other digital mode
cw is digital on off on off or dit dah dit dah . sound there sound away ... so where is the analog compound??? - Original Message - From: S.J. To: digitalradio@yahoogroups.com Sent: Monday, June 01, 2009 5:15 PM Subject: [digitalradio] . . . the other digital mode CW is an Analog Mode . . . 73, Sherm KB9Q
Re: [digitalradio] . . . the other digital mode
Having learned CW in 1959 and computer programming in 1968, I take your point. In the broadest sense, CW is binary. It is true most digital modes have fairly precise timing, whereas CW, especially sent with a straight key, can be quite the opposite. I have been doing my best to stay away from use of PC programs that generate CW, as well as those that can decode it. I realize that's a loosing battle. DXers and Contesters are moving to these programs for obvious reasons. In everyday Ham language, usually digital modes mean a computer program is generating the transmitted information and another one is decoding it on the other end. So I would exclude traditional CW from my personal list of digital modes for that reason. But in fact, since computer generated and decoded CW is now possible, it really should be included in the list of digital modes, shouldn't it? Jim - K6XZ - Original Message - From: Siegfried Jackstien To: digitalradio@yahoogroups.com Sent: Monday, June 01, 2009 2:45 PM Subject: Re: [digitalradio] . . . the other digital mode cw is digital on off on off or dit dah dit dah . sound there sound away ... so where is the analog compound??? - Original Message - From: S.J. To: digitalradio@yahoogroups.com Sent: Monday, June 01, 2009 5:15 PM Subject: [digitalradio] . . . the other digital mode CW is an Analog Mode . . . 73, Sherm KB9Q .
