FM IBOC has killed meteor scatter chances here, as the only frequency that every seems to have any Ms is 93.1, and I have logged everything in the western US including Honolulu. I used to get into 97.1 and 102.7, but they're dead now. It takes extreme "West Coast" tropo (which is pathetic compared to back east) to get into IBOC-adjacents (for lack of a better term), and 50-100 KW stations that are less than 100 miles with an IBOC neighbor are non-existent until I'm at least 30 miles from the IBOC source. I find it more disruptive on FM, but as I'm typing this I'm also thinking that I have more than 1600 AM stations logged (in 38 years) which means fewer opportunities for something new. I only have 550 or so FMs (in 3 years) so there's still a lot to conquer on FM. Mike
Russ Edmunds <[EMAIL PROTECTED]> wrote: > > QUESTION: has this wider bandwidth been a detriment to FM DX to the > extent > that AM IBOC has been to AM DX? > It hasn't at ;east in the same sense, mainly because the propagation is very different. FM IBOC locally has wiped out numerous adjacent channels to locals. In most of these cases, there are other stations at 100 miles or less which either singly or in pairs in opposite directions, dominate the frequencies in question. Strong tropo from another direction will wipe them out, and it will largely wipe out the hiss. E skip will almost always come right through the hiss. What is most impacted is any ability to DX weak signals at the fringes of reception, weaker tropo and now most meteor scatter. For me personally, it's been a pain, but most of my DX has been E skip for the past several years as I never had all that many frequencies pre IBOC clear enough for meteor scatter, and as I don't get much tropo except to the same old places South and Southeast. While I haven't yet had time to do a bandscan on AM, I expect to lose significant portions of the band - potentially 630-900, 990-1230, and 1490-1570 as well as a few others which are first adjacents to more powerful nighttime locals. Russ Edmunds Blue Bell, PA ( 360' ASL ) [15 mi NNW of Philadelphia] 40:08:45N; 75:16:04W, Grid FN20id FM: Yamaha T-80 & Onkyo T-450RDS w/ APS9B @15' AM: Hammarlund HQ-150 & 4' FET air core loop ____________________________________________________________________________________ Need a vacation? Get great deals to amazing places on Yahoo! Travel. http://travel.yahoo.com/ _______________________________________________ IRCA mailing list [email protected] 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: [email protected] --------------------------------- Boardwalk for $500? In 2007? Ha! Play Monopoly Here and Now (it's updated for today's economy) at Yahoo! Games. _______________________________________________ IRCA mailing list [email protected] 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: [email protected]
