--- In [email protected], "dshults" <[EMAIL PROTECTED]> wrote: > > Can someone please explain to me why manually operated digital > experimenting takes place within the narrow 20 meter sub band where > automatic forwarding systems are specifically limited to occupy? > Is the rest of the digital band closed to these modes for some > reason? Whether USB or LSB, the modulation still falls there. > > If Olivia and Contestia operate under full automatic control > (the originating station) I can understand, but I don't believe this > is the case.
I guess because as a "human" I can determine if a frequency is in use, and then operate there if it is not in use. I was unaware that there were "assigned frequencies" for automated (read that non human) stations to pass some very very small amount of traffic without checking to see if the frequency is in use. I remember reading somewhere that you're supposed to check to see if the frequency is in active use before establishing a contact, but I guess that's for us silly human operators, not automated systems which seem to just "come up". After all there is no such a thing as an internet, and it's very important to maintain HF packet and AMTOR backbones on HF...because we can. But, that's just me. I'd ban all un-attended operations on HF amateur allocations as QRN generators if I could. Cheers! N6CRR > > ... Duane N7QDN > > --- In [email protected], "palmdalesteve" <[EMAIL PROTECTED]> > wrote: > > > > Calling all experimenters ( A Proposal) > > > > I'd like to propose a few experiments on HF to see how well Olivia > and > > Contestia stack up. I'm looking for West Coast to Mid West > stations to > > participate, as the propagation has been pretty bad at night to try > > this experiment to the East Coast. If someone on the East Coast > > wishes to try the same experiment, that would be great. Results, > > comments and suggestions can be posted under this thread. > > > > Here's the plan: > > > > Pick a time and band at an agreed to time for QSO's in various > Olivia > > mode, report signal and see how it all stacks up. Of course this is > > all depending on propagation cooperation, which now days is not a > sure > > thing. I think we can coordinate this experiment to allow for bands > > being open and try to run it during the day or in the evenings, > most > > likely on 40 meters. Daytime would probably work best on 20 meters, > > 14.107 or 14.108. > > > > Here's the outline of the plan. Please feel free to edit and > comment. > > > > 1 Pick a frequency and operating mode for the start of the test. > > 2 Something like 7.090 04:00 Z. Olivia 1000/32 tone mode. Power > > should be something like 30 to 40 watts maximum. What ever the > power > > is, let others know what is you are running for power. > > 3 Establish contacts and or check in of stations able to copy. > > 4 Exchange signal reports using the MixW Olivia DLL standard > tool. > > 5 The suggested exchange in a Macro would have: > > <GET SN> <GET OFFSET> <GET RATE> > > 6 Take check ins for stations who are receiving the signal, but > who > > did not establish the QSO. Reports would be welcome. > > 7 Reduce power in 5 Watt steps down to 5 Watts, move power back > up to > > starting point, pausing at each step for stations monitoring to > > record the signal using the Macro each step. I would suggest > repeating > > the step down and up from both ends of the QSO. > > 8 Take received reports from stations who are listiting mode. > > 9 Change to Olivia Mode 500/16, then 500/8 and finally 500/4 > > repeating the power step down. > > 10 Change to Contestia Mode and repeat. The automated SN and other > > features does not work in the DLL I have, so the reading will have > to > > be only on number of errors in text. If anyone can get the signal > > reporting to work, clue me in. > > > > For test text, here's an old test we used to use in the military > > > > DE N6CRR @ x Watts > > The quick brown fox jumps over the fence. 1 2 3 4 5 6 7 8 9 10 > > > > DE N6CRR @ x Watts > > The quick brown fox jumps over the fence. 1 2 3 4 5 6 7 8 9 10 > > > > etc etc > > > > So anyone want to "play"? > > > > N6CRR/Steve > > > ------------------------ Yahoo! Groups Sponsor --------------------~--> Get fast access to your favorite Yahoo! Groups. Make Yahoo! your home page http://us.click.yahoo.com/dpRU5A/wUILAA/yQLSAA/ELTolB/TM --------------------------------------------------------------------~-> Need a Digital mode QSO? Connect to telnet://208.15.25.196/ Other areas of interest: The MixW Reflector : http://groups.yahoo.com/group/themixwgroup/ Looking for digital mode software? Check the quick commerical free link below http://www.obriensweb.com/digimodes.html Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/digitalradio/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
