On Dec 24, 5:54*pm, "David Eduardo" wrote:
"Brenda Ann" wrote in message
...
"David Eduardo" wrote in message
.. .
"PocketRadio" wrote in message
....
Yea, it does - stations won't be able to afford the new transmitters/
antennas, if the 10db power increase is approved for FM-HD.
A large percentage of stations believe the technical sacrifices on this
increase do not justify the potential gains today. The interference to
in-market second adjacents may be too severe to tolerate, and the gains
not quantifiable today.
So now you admit that IBOC is a QRM generator??
No, not at current levels. But a 10 db increase would cause some issues.- Hide quoted text -
- Show quoted text -
"HD Interference: Not Just For AM Anymore"
"Radio World Engineering Extra dropped a bomb this month with a very
provocative cover story: 'What Are We Doing to Ourselves, Exactly?'
Written by Doug Vernier, the man who authored the technical
specifications for an ongoing Corporation for Public Broadcasting-
sponsored HD Radio interference analysis, the report is the first of
its kind to document interference between FM-HD stations around the
country. Using anecdotal reportage, some sophisticated contour-
mapping, and presumably 'early data' from the CPB study, Vernier's
article conclusively proves how stations running in hybrid HD/analog
mode can (and do) interfere somewhat significantly with not only
themselves, but their neighbors on the FM dial."
http://diymedia.net/archive/1207.htm#122307
"Editorial: More Than Half Full"
"AM-HD continues to fight uphill. Several manufacturers showed
impressive new transmitter models designed to optimize and maintain HD
performance. Yet the growth of AM-HD stations coming on the air
appears stalled and we hear murmurings about some broadcasters pulling
back on AM-HD or wishing to renegotiate their commitments with
Ibiquity."
http://www.rwonline.com/pages/s.0044/t.13363.html
"Citadel Halts AM Nighttime IBOC Operation Amid Complaints"
"An excerpt from his memo to staff reads: In response to the
lackluster performance, the limited benefit and various reports of
significant interference, Citadel is suspending nighttime AM HD
operations at this time. Please reinstate your previous procedures for
daytime-only HD operation as soon as possible.”
http://www.radioworld.com/pages/s.0121/t.8847.html
Cum again ? LOL!