Re: MODERATOR: [digitalradio] Re: Fast/Wide Slow/Narrow
From: John Bradley jbrad...@sasktel.net Date: Wed, 28 Oct 2009 Time: 16:30:53 Moderator since there are only a couple of members carrying on this lengthy dialogue, could I respectfully suggest they take thisprivate, so as to not QRM everyone?s mailbox? Hello Moderator, There may be only a couple of people conducting this thread at the moment, but it's interesting stuff that is *directly relevant* to the digitalradio group. Please let it continue unhindered! Thank you. -- 73 Ian, G3NRW
Re: MODERATOR: [digitalradio] Re: Fast/Wide Slow/Narrow
So noted. Andy K3UK Hello Moderator, There may be only a couple of people conducting this thread at the moment, but it's interesting stuff that is *directly relevant* to the digitalradio group. Please let it continue unhindered! Thank you. -- 73 Ian, G3NRW On Thu, Oct 29, 2009 at 9:10 AM, Ian Wade G3NRW g3...@yahoo.co.uk wrote: From: John Bradley jbrad...@sasktel.net jbradley%40sasktel.net Date: Wed, 28 Oct 2009 Time: 16:30:53 Moderator since there are only a couple of members carrying on this lengthy dialogue, could I respectfully suggest they take thisprivate, so as to not QRM everyone?s mailbox?
[digitalradio] Re: Fast/Wide Slow/Narrow
I'm glad there isn't any finite bandwidth limit for HF digital data communications in USA's FCC rules. (Other than the whole subband) This leaves open the potential for some wonderful new and different data modes to be developed in the near future. Modes that have the potential to send a page of text in a matter of seconds... or to have nearly realtime text chat among a large group of operators. We are fortunate to live in the Golden Age of Ham Radio Digital Communications. 73 Bonnie KQ6XA obrienaj k3uka...@... wrote: I might feel I need to transfer my message at 9600 baud on HF but others might argue I should be patient and accept a 300 baud transfer. Andy
MODERATOR: [digitalradio] Re: Fast/Wide Slow/Narrow
Moderator since there are only a couple of members carrying on this lengthy dialogue, could I respectfully suggest they take thisprivate, so as to not QRM everyone's mailbox? Thanks John VE5MU From: digitalradio@yahoogroups.com [mailto:digitalra...@yahoogroups.com] On Behalf Of John B. Stephensen Sent: Wednesday, October 28, 2009 3:46 PM To: digitalradio@yahoogroups.com Subject: Re: [digitalradio] Re: Fast/Wide Slow/Narrow Since RTTY is defined as direct printing telegraphy texting can go on in the RTTY/data segment. However, sending a whole page of text can also be called facsimile and done in the phone/image segments, whether it is encoded as ASCII, PDF or JPEG. B7W (ISB) emissions are also allowed and that is any combination of telegraphy, facsimle, data, telemetry, telecommand, telephony and television. FDMDV is ISB as it has a central pilot carrier and it carries voice and text. 73, John KD6OZH - Original Message - From: expeditionradio mailto:expeditionra...@yahoo.com To: digitalradio@yahoogroups.com Sent: Wednesday, October 28, 2009 06:18 UTC Subject: [digitalradio] Re: Fast/Wide Slow/Narrow I'm glad there isn't any finite bandwidth limit for HF digital data communications in USA's FCC rules. (Other than the whole subband) This leaves open the potential for some wonderful new and different data modes to be developed in the near future. Modes that have the potential to send a page of text in a matter of seconds... or to have nearly realtime text chat among a large group of operators. We are fortunate to live in the Golden Age of Ham Radio Digital Communications. 73 Bonnie KQ6XA obrienaj k3uka...@... wrote: I might feel I need to transfer my message at 9600 baud on HF but others might argue I should be patient and accept a 300 baud transfer. Andy
MODERATOR: [digitalradio] Re: Fast/Wide Slow/Narrow
MODERATOR: Although I have not contributed to this thread, I have indeed been following it with some interest. I thought that was the whole reason for this forum If I am in error to only sit back and learn without posting, please let me know . along with numerous others Thanks 73 --- In digitalradio@yahoogroups.com, John Bradley jbrad...@... wrote: Moderator since there are only a couple of members carrying on this lengthy dialogue, could I respectfully suggest they take thisprivate, so as to not QRM everyone's mailbox? Thanks John VE5MU From: digitalradio@yahoogroups.com [mailto:digitalra...@yahoogroups.com] On Behalf Of John B. Stephensen Sent: Wednesday, October 28, 2009 3:46 PM To: digitalradio@yahoogroups.com Subject: Re: [digitalradio] Re: Fast/Wide Slow/Narrow Since RTTY is defined as direct printing telegraphy texting can go on in the RTTY/data segment. However, sending a whole page of text can also be called facsimile and done in the phone/image segments, whether it is encoded as ASCII, PDF or JPEG. B7W (ISB) emissions are also allowed and that is any combination of telegraphy, facsimle, data, telemetry, telecommand, telephony and television. FDMDV is ISB as it has a central pilot carrier and it carries voice and text. 73, John KD6OZH - Original Message - From: expeditionradio mailto:expeditionra...@... To: digitalradio@yahoogroups.com Sent: Wednesday, October 28, 2009 06:18 UTC Subject: [digitalradio] Re: Fast/Wide Slow/Narrow I'm glad there isn't any finite bandwidth limit for HF digital data communications in USA's FCC rules. (Other than the whole subband) This leaves open the potential for some wonderful new and different data modes to be developed in the near future. Modes that have the potential to send a page of text in a matter of seconds... or to have nearly realtime text chat among a large group of operators. We are fortunate to live in the Golden Age of Ham Radio Digital Communications. 73 Bonnie KQ6XA obrienaj k3ukandy@ wrote: I might feel I need to transfer my message at 9600 baud on HF but others might argue I should be patient and accept a 300 baud transfer. Andy
