Andrew O'Brien wrote: > I have been "QRV" on digital voice ,using WinDRM, and thought I would offer > some rookie/newbie random thoughts. > I think that you may be looking at this from the wrong angle, Andrew,
DRM is intended as a very high quality mode, capable of very high quality reproduction and, just like in FM broadcast terms, this has its limitations. You need high s/n+n ratios and the associated bandwidth to go with it. If Amateur Radio were just about being able to work ultra-DX then many modes and bands would never have been developed. SSTV, especially Digital SSTV, also requires good signals and wide (in comparison to CW/SSB or even WSJT modes) bandwidth. Fast Scan TV on 23cm requires even more bandwidth. However, people do use wideband modes and enjoy the challenge that these modes bring. If you use some of the very high microwave bands a few miles is an achievement. That doesn't mean that quite long distances are not able to be worked, given the right conditions and a good deal of application, but you are not going to get DXCC of 10GHz, unless you go to using moon bounce, which is possible, but not easy... If you want to work the world, quickly, then DRM, Fast Scan TV and other specialist modes are not going to be the way to go. However, if you enjoy a challenge and find that every contact completed, whether that contact is over a distance of 1 mile or 1000 miles, is an enjoyable proof that it can be done, then stick with it. Dave (G0DJA) Need a Digital mode QSO? Connect to Telnet://cluster.dynalias.org Other areas of interest: The MixW Reflector : http://groups.yahoo.com/group/themixwgroup/ DigiPol: http://groups.yahoo.com/group/Digipol (band plan policy discussion) Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/digitalradio/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/digitalradio/join (Yahoo! ID required) <*> To change settings via email: mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] <*> 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/
