Guys, Like I have said before, the only way to solve this is to designate a certain portion on each band just for this type of communications.
I just don't understand anyone would spend thousand of dollars on radios, antennas, computers and other related hardware just to pass email. Joe W4JSI ----- Original Message ----- From: jgorman01 To: digitalradio@yahoogroups.com Sent: Saturday, March 10, 2007 6:07 PM Subject: [digitalradio] Re: Busy detector Ask yourself why scamp died. Do you really think the winlink users who have spent a thousand dollars or more on pactor modems are going to relish throwing that investment away because the winlink admin's have decided to go to a soundcard mode? Jim WA0LYK --- In digitalradio@yahoogroups.com, "Dave Bernstein" <[EMAIL PROTECTED]> wrote: > > I have been lobbying the WinLink team to do this for years, without > success. You are more than welcome to try, Jose. > > 73, > > Dave, AA6YQ > > --- In digitalradio@yahoogroups.com, "Jose A. Amador" <amador@> > wrote: > > > > > > Dave Bernstein wrote: > > > > > As is often the case in engineering, Jose, perfect is the enemy > of > > > good. What Rick KN6KB discovered while developing SCAMP's busy > > > detector was that he could detect CW, PSK, Pactor, and SSB at an > ~80% > > > confidence level without enormous difficulty. SCAMP beta testers > were > > > amazed by the effectiveness of this first iteration. > > > > > > Pushing the confidence level from 80% to 100%, however, would > take > > > years -- if its even possible. But a busy detector that works 80% > of > > > the time would cut QRM from unattended automated stations (like > > > WinLink PMBOs) by a factor of 5! > > > > > > Your comment that "many think it is simpler than it really is to > do > > > it WELL" is frankly moot; Rick demonstrated two years ago that > useful > > > busy frequency detection was implementable on a PC and soundcard. > > > > > > 73, > > > > > > Dave, AA6YQ > > > > I understand that 80% is fairly good. Hope the long standing > > anti-automatic stations lobby sees it as acceptable as well. > > > > What is seemingly left, then, is to simply push the busy detector > into > > practice and 24/7 service. > > > > Who will get the task done? > > > > 73, Jose > > > > > > > > > > > > > > > > > > > > > > > > > > __________________________________________ > > > > V Conferencia Internacional de Energía Renovable, Ahorro de Energía > y Educación Energética. > > 22 al 25 de mayo de 2007 > > Palacio de las Convenciones, Ciudad de la Habana, Cuba > > http://www.cujae.edu.cu/eventos/cier > > >
