That sounds like fun, and useful too. ve3bdr in kanuckistan
From: kb2hsh Sent: Tuesday, July 20, 2010 10:16 AM To: digitalradio@yahoogroups.com Subject: [digitalradio] Re: DominoEX On VHF FM Good morning all... This has been interesting me since I read about it in QST last year. I, too, have been looking to do some experimenting with this mode. Last year, I briefly tested this by heading to my Church....about 3.5 miles away. I brought along my TINY Sony Vaio and my IC-2AT...and then set my FT-817 in receive with DominoEX-8. With 100 mW, I had nearly solid print from the old 2AT and a rubber-duckie antenna. With better antennas, one would think that significantly better distances could be accomplished. Too bad more don't experiment like this. 73, John KB2HSH --- In digitalradio@yahoogroups.com, "JonP" <jpere...@...> wrote: > > I have the need to set up some reliable local digital communications (say 10 > mile radius from the base station) for data transfer, and to do so in a short > period of time. > > I would normally first think of VHF FM packet, but a lot of people are > running into troubles with things like Vista and Windows 7 (please, spare me > the "Linux" or "Apple" and "D*Star" messages, they're not realistic in this > situation). > > I've seen some references to running DominoEX and MFSK-16 on VHF FM. A number > of my prospective operators are running digital modes such as DominoEX, MFSK, > etc. on their computers now (under XP, Vista, Win7) without problems. > > Would one of those modes be realistic to run on 25 watt (or higher) mobiles > on 2 meter FM using vertically polarized antennas? I realize that the > vertical polarization would be an issue if we want to get out of the local > area, but right now the need is within a local area and everyone would be > running with a typical VHF vertical. > > If feasible, what sub-band would we use? I would assume the FM simplex > sub-bands. Is that correct? > > Anything else we should consider? Any special issues/problems? I would think > that we would not have to reduce power since these radios are already running > FM, but if not the case please correct me. > > Thanks. > > Jon > KB1QBZ > -------------------------------------------------------------------------------- No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.839 / Virus Database: 271.1.1/3017 - Release Date: 07/20/10 02:36:00
