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Samsung Developing New Low-Power, Low-Priced Chipset for HD Radio

P

PocketRadio

"Samsung Developing New Low-Power, Low-Priced Chipset for HD Radio(TM) Receivers"

"Samsung Electro Mechanics, a global leader in semiconductor, telecommunication, digital media and digital convergence technologies, announced today that it plans to introduce a new chipset for use in portable and home HD Radio receivers. Samsung, which had previously become an iBiquity Digital IC development partner, anticipates that samples of the chipset will be available before the end of the 2007 with production anticipated for the first quarter of 2008."

http://www.sys-con.com/read/373542.htm

Interesting, that there is never any talk about what type of antenna systems will be used for portable HD radios - since reception with table-top HD radios, using AM-loop and external FM-dipole antennas is problematic, what do they expect out of portable HD radios ? Will consumers put up with constant switching between digital and analog signals, or total dropouts, in attempt to catch those elusive 1/100th power-level digital saddlebags ? Has STMicroelectronics failed to develop optimized HD Radio ?
 
There is 'no talk about what kind of antenna will be used' because HD USES THE SAME FREQUENCY BAND(s) as AM AND FM, and uses the same antennas! The only type that doesn't seem to work very well, and it ALSO DOESN'T WORK WELL FOR ANALOG FM STEREO is a line-cord antenna, the lowest of the low on the totem-poll. First generation HD radios produce LOTS of rf interference, just like your computer (or early generation cd players...remember the amount of rf from them?) Put a pair of rabbit ears next to the radio, and it doesn't work. Move it a few feet away, and it's good for 60-80 MILES!

A few minutes ago I wrapped my Accurian in aluminum foil. Having done so, I was able to place the antenna ON TOP OF THE UNIT, and get great reception. All it will take is some rf shielding, just as with portable cd player/radios (remember it was YEARS before there was a portable cd/radio). Obviously research into portable players will mean they'll be using the same antennas as current portables. The headphone cord, and an internal ferrite rod.

How many times do you have to have it explained that more power doesn't yield greater coverage at VHF frequencies...it means improved s/n ratio. S/N ratio is all but meaningless with digital signals. There is no "audio"...only a binary code which DESCRIBES the audio moment to moment, sample to sample. All that's needed is enough power to distinguish between a one and a zero. The fact that 1/100th of the erp of the main carrier works is nothing to snicker or make jokes about. To those of us who actually understand the technology, it is nearly miraculous. The efficiency is mind-boggling. THIS is technological innovation...up to four (so far) distinct continuous programs (analog and three digital signals) from ONE transmitter, and ONE antenna, in the same spectrum as the analog signal. IT WORKS! I didn't think it would when the FCC mandated IBOC some 15 years ago. But IT DOES!
 
"Analog vs Digital coverage"

"In radio a digital signal always means a less robust signal than analog. Digital doesn't go as far, requiring many more multi-million dollar base stations to cover the same area as analog. It is cost efficient for a cellular carrier to switch to digital, since they can carry several calls on a single frequency, instead of just one for analog. But coverage and audio quality will suffer. H reports below from South Dakota."

http://www.privateline.com/mt_dailynotes/2002/10/analog_vs_digital_coverage.html

Portable HD Radio will never work - there will be dropouts constantly to analog and total cutouts of the digital signals - consumers will just return portable HD, as they have done with table-top HD. My analog radios just require the internal ferrite-bar and whip antennas - no need for AM-loop and external FM-dipole antennas. The low-power digital channels are the problem - this is HD Radio's Achilles Heel.
 
CAN YOU READ? The actual experiences of people here and elsewhere show that these early, predicted coverage maps underestimate digital coverage by quite a bit. ASK AN ENGINEER AT AN HD FM STATION! Most will tell you that HD covers a good deal more than originally predicted. HD at EIGHTY MILES...an actual recording AT MY HOUSE, using an indoor antenna...glorified rabbit ears (Magnum Dynalab SR100). Note, this recording was made in January, MOST of the stations here have improved their sound quality since then

http://www.theproductionroom.net/hd.wma

A real recording proving that HD exceeds predicted range trumps a rant on somebody's blog!
 
PocketRadio said:
"Samsung Developing New Low-Power, Low-Priced Chipset for HD Radio(TM) Receivers"

"Samsung Electro Mechanics, a global leader in semiconductor, telecommunication, digital media and digital convergence technologies, announced today that it plans to introduce a new chipset for use in portable and home HD Radio receivers. Samsung, which had previously become an iBiquity Digital IC development partner, anticipates that samples of the chipset will be available before the end of the 2007 with production anticipated for the first quarter of 2008."

http://www.sys-con.com/read/373542.htm

Interesting, that there is never any talk about what type of antenna systems will be used for portable HD radios - since reception with table-top HD radios, using AM-loop and external FM-dipole antennas is problematic, what do they expect out of portable HD radios ? Will consumers put up with constant switching between digital and analog signals, or total dropouts, in attempt to catch those elusive 1/100th power-level digital saddlebags ? Has STMicroelectronics failed to develop optimized HD Radio ?
Click to expand...

IMHO, Lower priced chipsets will be perceived by radio manufacturers as inferior and damaged goods because of how little they cost. They will see that they are junk and view the low priced components as faulty. Many have claimed that the high price indicates quality. This story of cheap chipsets proves HD radio will never work.

Clouseau

Ooops - Posted in the wrong thread.
 
Yeah...and this indoor plumbing thing. W.T.F.? Nobody will EVER pay for that! What the hell is wrong with the outhouse?
 
This is fantastic news. I would love to see an HD Walkman type radio. I remember being excited when XM announced they were designing a hand-held portable and how much I anticipated the release of the MyFi. Now I get to feel that same excitement of anticipation as the possibility of an HD handheld comes closer to realization. 8)
 
I'll buy the first portable HD radio that becomes available. I don't drive, due to my disability (legally blind). But I DO dearly love portable audio, and in particular portable radios. My house is literally full of radios. I'll DEFINITELY buy one of these.
 
Mike Walker said:
I'll buy the first portable HD radio that becomes available. I don't drive, due to my disability (legally blind). But I DO dearly love portable audio, and in particular portable radios. My house is literally full of radios. I'll DEFINITELY buy one of these.
Click to expand...

I hope, those portable HD radios also have jacks for external FM-dipole and AM-loop antennas ! :D
 
Hey, if these chipsets can decode C-Quam and aid radio manufacturers in improving the overall audio quality of analog AM (while providing HD-R) and do it cheaply, then maybe they can be a good thing. I'm not opposed to them.

db
 
SUPERCASTER said:
Mike said:
A few minutes ago I wrapped my Accurian in aluminum foil.
Click to expand...

Tin foil hats for HD radios? ::)
Click to expand...

"Pandora Selects Coding Technologies' aacPlus for Personalized Mobile Radio Service"

"SAN FRANCISCO, BUSINESS WIRE -- Coding Technologies, the leading provider of audio compression technology for digital broadcasting, mobile music and the Internet, today announced that Pandora has chosen its MPEG-4 HE-AAC/aacPlus audio codec to deliver its new, personalized radio music service to its mobile listeners. The music discovery service, previously only available to online PC users, allows any aacPlus-enabled Sprint Power Vision mobile phone owner to create up to 100 personalized radio stations based on their favorite artist or song. Initially, this service will be available on the following Sprint Power Vision models, which include the FUSIC by LG, the A900 and A920 by Samsung, and the 7500 and 8400 by Sanyo. In addition, five more models will be available by the end of June."

http://radio.broadcastnewsroom.com/articles/viewarticle.jsp?id=143945

This personalized service is only an extra $3/month - I wonder, if this will have an impact on iPods ?
 
"Pandora Selects Coding Technologies' aacPlus for Personalized Mobile Radio Service"

"SAN FRANCISCO, BUSINESS WIRE -- Coding Technologies, the leading provider of audio compression technology for digital broadcasting, mobile music and the Internet, today announced that Pandora has chosen its MPEG-4 HE-AAC/aacPlus audio codec to deliver its new, personalized radio music service to its mobile listeners. The music discovery service, previously only available to online PC users, allows any aacPlus-enabled Sprint Power Vision mobile phone owner to create up to 100 personalized radio stations based on their favorite artist or song. Initially, this service will be available on the following Sprint Power Vision models, which include the FUSIC by LG, the A900 and A920 by Samsung, and the 7500 and 8400 by Sanyo. In addition, five more models will be available by the end of June."

http://radio.broadcastnewsroom.com/articles/viewarticle.jsp?id=143945

Nice! This is one of my favorite internet-only radio channels and since I am a Sprint costumer, it may be time to upgrade my phone! 8)
 
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