On Mar 6, 3:11�pm, "Guerite�" wrote:
"JimC" wrote in message
t...
What's the development status of HD programming? (Are they being
broadcast in most metropolitan areas now?) *Also, is the audio fidelity
as good as FM, and if not, what are the advantages of getting HD-AM?
Jim
AM HD is stereo and is about as good as analog FM.
Both AM HD & FM HD have ( um, forgot what it's called) auto-station ID
display, as well as program/song information display. *Great for DXing!
FM HD is about as good as CD audio. *Many FM HD stations broadcast two HD
channels consisting of different programming.
No one cares:
"In-Stat: Digital Radio Set to Take Off"
"In 2006, 73 percent of respondents to an In-Stat U.S. consumer survey
were aware of HD Radio on some level."
http://beradio.com/eyeoniboc/instat-digital-radio-set/
"Sirius, XM, and HD: Consumer interest reality check" (Alexaholic)
"While interest in satellite radio is diminishing, interest in HD
shows no signs of a pulse."
http://www.hear2.com/2007/02/sirius_....html#comments
This just confirms, the lack of interest for HD Radio, on Google
Trends:
http://www.google.com/trends?q=%22hd... =all&date=all
"Rethinking AM's Future"
"Only 175 or so AM stations have even licensed AM-HD. For a number of
reasons, quite a few have tried it and taken it off the air, or so the
anecdotal evidence suggests. Ibiquity no longer reports in its public
summaries whether a station is on the air. Making AM-HD work well as a
long-term investment is seen as an expensive and risky challenge for
most stations and their owners. With the bulk of successful AMs airing
news, talk and sports, the improved fidelity advantage of HD and
stereo seem only marginally attractive. There is the significant
downside of potential new interference to some of their own AM analog
listeners as well as listeners of adjacent-channel stations. And of
course we still have no nighttime authority for AM-HD."
http://www.rwonline.com/pages/s.0044/t.557.html
Existing RDS has the same texting functions, as HD/IBOC. For now, HD
Radio/IBOC is dead.