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HD Digital arrives this fall in Nashville, right?

T

Tibbs4

Banned
The HD Digital Radio Alliance has announced the rollout of HD2 for the fall in Nashville and other markets #42-65.

Any thoughts?

How long do you think it'll take for people to get the receivers for their house and cars and make an impact.

Mostly though...does this mean Cromwell's signals will be better? How about programming? I'd miss the dead air, static and overall miserable listening experience of the Venus as it is.
 
HD Radio has already been in Nashville for at least a year or two. 1510, 102.5, 105.9, and several others already have it. I guess they'll start adding secondary channels this fall.
 
ChrisPC24 said:
HD Radio has already been in Nashville for at least a year or two. 1510, 102.5, 105.9, and several others already have it. I guess they'll start adding secondary channels this fall.
Click to expand...

To wit, 90.3 and 107.5.

90.3 and 107.5 have operating subchannels right now, though 107.5's is only simulcasting their analog. 105.9 has experimented with a subchannel in the past, presumably they have the equipment to light it back up once they're so inclined.
 
For the two dozen or so people who have HD, mostly radio people, it will sound great. For the rest of the world, it is going to take a long while for HD to stick.

AM stereo.
Quad FM
HD?
 
When FM stereo was first rolled out after the approval in 1961, the only place you could here it was on the studio Modulation monitor. In the words of Eric Swan, "These things take time."
 
When auto manufacturers start putting them in new cars at least as an option, HD will pick up in popularity. Receivers will gradually come down in price....you can get them now for about $150.00 but I can't speak to their quality.
 
I purchased one of the new JVC radios last month for 189 at buy.com. It seems to work as well as the other radios I've listened to ( the Receptor I have in my office, a Sanyo that I bought last Christmas for 150 without the HD-2 ability, and the older Kenwood units.) But you're right. They need a "below 100 dollar" unit for it to take off ( maybe for Christmas?)
 
Nashsound said:
I purchased one of the new JVC radios last month for 189 at buy.com. It seems to work as well as the other radios I've listened to ( the Receptor I have in my office, a Sanyo that I bought last Christmas for 150 without the HD-2 ability, and the older Kenwood units.) But you're right. They need a "below 100 dollar" unit for it to take off ( maybe for Christmas?)
Click to expand...

There are some SERIOUS coverage problems. It might fly in Davidson Co. but up here in Pleasant View I had to break out an old TV antenna to get reliable HD FM reception. As for the HD on WLAC-AM, forget it... it works if I hook up the 260-foot ham antenna but not with anything that fits in the house... People who are used to listening to WSM up in Clarksville, or to WJXA out in Lebanon, are likely to be sticking to analog for a LONG time to come.

I do enjoy World Cafe on WPLN-HD2.

Did 92Q go HD in the last couple of days? I noticed last night on the way home from work that 91.9 and 92.3 were completely empty - usually there's modulation splash (and WAPX) on those channels. Can't get even the little "HD" indicator on 92.1 from home though. (not a surprise as I can just barely get it on 100,000-watt stations)
 
dougw9wi said:
Nashsound said:
I purchased one of the new JVC radios last month for 189 at buy.com. It seems to work as well as the other radios I've listened to ( the Receptor I have in my office, a Sanyo that I bought last Christmas for 150 without the HD-2 ability, and the older Kenwood units.) But you're right. They need a "below 100 dollar" unit for it to take off ( maybe for Christmas?)
Click to expand...

There are some SERIOUS coverage problems. It might fly in Davidson Co. but up here in Pleasant View I had to break out an old TV antenna to get reliable HD FM reception. As for the HD on WLAC-AM, forget it... it works if I hook up the 260-foot ham antenna but not with anything that fits in the house... People who are used to listening to WSM up in Clarksville, or to WJXA out in Lebanon, are likely to be sticking to analog for a LONG time to come.

I do enjoy World Cafe on WPLN-HD2.

Did 92Q go HD in the last couple of days? I noticed last night on the way home from work that 91.9 and 92.3 were completely empty - usually there's modulation splash (and WAPX) on those channels. Can't get even the little "HD" indicator on 92.1 from home though. (not a surprise as I can just barely get it on 100,000-watt stations)
Click to expand...

I've been looking on the internet at what stations have to offer in the way of programming on their HD2 channels and have listened to some of the HD2 channels streaming online from Clear channel at:
http://www.clearchannelmusic.com/hdradio. I've also listened to some of WPLN's HD2 stream online. Does HD radio sound much better than an audio stream on a broadband internet connection?

I've also noticed there isn't any HD2 programming offered on AM stations. Is this planed for laterr?
 
I've also listened to some of WPLN's HD2 stream online. Does HD radio sound much better than an audio stream on a broadband internet connection?
Click to expand...

I think it does, on FM, and yes even on HD2.

On AM I think it sounds very similar to a stream on a broadband connection.

I've also noticed there isn't any HD2 programming offered on AM stations. Is this planed for laterr?
Click to expand...

Apparently not. The iBiquity white papers indicate only one program service is possible on AM. It seems to me that logical channel P2 should support a second (rather poor quality) program at 20.2kbps but it looks like they plan to use it only to improve the quality of the main program.
 
Re; HD2 for AM. There isn't enought bandwith. The basic FM HD signal is a 96 Kbite stream, in effect. When a station starts the HD multicast, we cut the main channel bitrate back to either 64 KB or 48KB, depending on the Bitrate we want to use for the HD 2 (64-32 or 48-48). If we did an HD-3, it probably woud be 48 for the main channel, 32 for the HD-2, 16 for the HD-3 , which would be suitable for talk.
On the AM side, the bandwith is only 32KB, although it's actually 36 ( 4KB for data). So there really isn't any room for HD-2 for AM.
 
Nashsound said:
Re; HD2 for AM. There isn't enought bandwith. The basic FM HD signal is a 96 Kbite stream, in effect. When a station starts the HD multicast, we cut the main channel bitrate back to either 64 KB or 48KB, depending on the Bitrate we want to use for the HD 2 (64-32 or 48-48). If we did an HD-3, it probably woud be 48 for the main channel, 32 for the HD-2, 16 for the HD-3 , which would be suitable for talk.
On the AM side, the bandwith is only 32KB, although it's actually 36 ( 4KB for data). So there really isn't any room for HD-2 for AM.
Click to expand...

But if 16kb is suitable for a talk program on an FM HD-3, and on AM you have a total of 32kb bandwidth, why can't you do two 16kb talk programs on the AM?
 
The formatting for the AM HD is that the "core" digital is 20KB, the Enhanced digital ( which provides the stereo information and ancillary data) is 16KB. If you wanted to limit yourself to just the core mono audio, one could transmit up to 16KB of ancillary data, which I guess could include a second mono program stream. That would require an upgrade of the firmware in the receiver, but some of them have a USB or similar port for this purpose. I know this is mentioned as a possiblity in the NRSC's test data for AM IBOC. If you want to be creative, you can run 5.1 surround thru the AM transmitter; I heard it at the Harris plant in Quincy.
 
has the FCC put a "hold" on AM HD2 because of the signal problems?
 
I haven't read of any plans for a multicast capability for AM right now. I think the emphasis was to get the main channel sounding as good as they could in the allotted bandwidth. The NPR guys actually are the ones that came up with the multicast scheme for FM IBOC.
 
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