[digitalradio] source coding, Randomizing, outer FEC, Inner FEC, coding to symbol, modulation of symbol(s)

2010-06-06 Thread Lester Veenstra
Robert: A DSP software engineer, smarter than you and me, can certainly write a diagnostic that will take the digitized audio, from a sound card A/D, and attempt to do what we do by ear. Typically such software, which does exist in other environments, relies on a number of human

Re: [digitalradio] source coding, Randomizing, outer FEC, Inner FEC, coding to symbol, modulation of symbol(s)

2010-06-06 Thread Robert Bennett
Many thanks, Les, for your comprehensive answer which has greatly increased my understanding of the issue. Not quite as straightforward as I imagined! 73 Robert

Re: [digitalradio] source coding, Randomizing, outer FEC, Inner FEC, coding to symbol, modulation of symbol(s)

2010-06-06 Thread John Becker, WØJAB
At 03:22 AM 6/6/2010, you wrote: (in part) In the end, systems like ROS, Clover, PACKTOR-XXX, etc, where there is not full published trasparency in the encoding process, are not suitable for legal amateur use, in my humble opinion. In other words, no one has the right to make money from their

RE: [digitalradio] source coding, Randomizing, outer FEC, Inner FEC, coding to symbol, modulation of symbol(s)

2010-06-06 Thread Lester Veenstra
[mailto:digitalra...@yahoogroups.com] On Behalf Of John Becker, WØJAB Sent: Sunday, June 06, 2010 3:49 PM To: digitalradio@yahoogroups.com Subject: Re: [digitalradio] source coding, Randomizing, outer FEC, Inner FEC, coding to symbol, modulation of symbol(s) At 03:22 AM 6/6/2010, you wrote

Re: [digitalradio] source coding, Randomizing, outer FEC, Inner FEC, coding to symbol, modulation of symbol(s)

2010-06-06 Thread Rik van Riel
On 06/06/2010 10:48 AM, John Becker, WØJAB wrote: At 03:22 AM 6/6/2010, you wrote: (in part) In the end, systems like ROS, Clover, PACKTOR-XXX, etc, where there is not full published trasparency in the encoding process, are not suitable for legal amateur use, in my humble opinion. In other

RE: [digitalradio] source coding, Randomizing

2010-06-06 Thread John Becker, WØJAB
By the same thinking (that being that a commercial company) is making any money should you not put kenwood and yaesu into the same? Or how about that mean money making company that made your sound card interface. or microsoft. John, W0JAB At 10:12 AM 6/6/2010, you wrote: You can of course

RE: [digitalradio] source coding, Randomizing

2010-06-06 Thread Lester Veenstra
@yahoogroups.com [mailto:digitalra...@yahoogroups.com] On Behalf Of John Becker, WØJAB Sent: Sunday, June 06, 2010 6:44 PM To: digitalradio@yahoogroups.com Subject: RE: [digitalradio] source coding, Randomizing By the same thinking (that being that a commercial company) is making any money should you

Re: [digitalradio] source coding, Randomizing

2010-06-06 Thread Alan Barrow
Lester Veenstra wrote: I am sorry that I did not make myself clear enough. My argument is directed to transmitted signal formats. That is, what is covered by §97.307 Emission standards. All the FCC requires is that the protocol/algorithm be made available if required. Does not have to