--- Scott Fybush <[EMAIL PROTECTED]> wrote: >> > DRM's main offerings are non-hybrid systems for use on MW, SW and up > in > the 26 MHz region. For these systems to work, broadcasters have to > either use separate spectrum from their analog transmissions (not an > option for US MW broadcasters, but easy enough to do on SW) or be > willing to shut off their analog in favor of going digital-only. > That's > something some European MW broadcasters are willing to consider; it's > not yet something most US MW broadcasters want to do. >
*** And it is because IBOC is a hyrid, where the digital signals occupy the sidebands of the channel and the analog the center that we encounter the hissing. In turn, we have a hybrid here because, as Scott indicated, broadcasters here obviously had some reservations about a full digital conversion and also about using other bands ( although I don't believe there was one single band available which could have filled the bill. Bottom line, building one compromise onto another doesn't always result in a good thing. Russ Edmunds Blue Bell, PA ( 360' ASL ) [15 mi NNW of Philadelphia] 40:08:45N; 75:16:04W, Grid FN20id <[EMAIL PROTECTED]> FM: Yamaha T-80 & Onkyo T-450RDS w/ APS9B @15' AM: Hammarlund HQ-150 & 4' FET air core loop ____________________________________________________________________________________ Looking for earth-friendly autos? Browse Top Cars by "Green Rating" at Yahoo! Autos' Green Center. http://autos.yahoo.com/green_center/ _______________________________________________ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
