HD-AM Incompatible-Retro View

[wnmb]

Hey guys! I have the Radio Shack Accurian HD tuner. It definitely decodes and plays AM Stereo. I am listening to it as I type this and it is playing very nicely in Stereo on my station, although the frequency response on the speakers is not so good as other AM Stereo tuners. The Accurian is the only HD I have, so I don't know about others. Bill. wnmb am stereo 900.

 

[DoogieDown1]

Now go ahead and call me a DX'er whose is living in the past, but there is nothing outdated in my concerns about the workability of this system.

I don't think you're living in the past, Bruce. I was just pointing out that you two guys probably weren't ever going to see eye to eye since one of you had never DXed and the other--namely, you--LOVES to DX.

I'm glad there are guys like you, Electrical Engineers with credibility, who are pointing out the flaws in AM HD.

 

[SUPERCASTER]

easypeazy said:

DXing except as a hobby is a concept whose time has passed. There is simply no need for it today. Even if you live in an area where there are no local signals whatsoever (and those are rare) you still have options in XM and Sirius.

Since all HD/IBOCers are DXers-by definition, (listen to weak signals by extraordinary means) your posts make no sense.
HD radio does not work here in the heavily populated northeast corridor where every FM channel is used within an 80 mile radius, the interference is intolerable and HD reception almost impossible without putting up an outdoor antenna. In the big city most people watch sat. TV or cable and their rooftop antennas (which might have been useful for HD radio) blew down, or corroded away years ago. HD radio can't even be picked up indoors in many locations within sight of the transmitting towers!
HD radio is just a total destructive, disaster.

 

[EasyPeazy]

easypeazy said:

DXing except as a hobby is a concept whose time has passed. There is simply no need for it today. Even if you live in an area where there are no local signals whatsoever (and those are rare) you still have options in XM and Sirius.

Since all HD/IBOCers are DXers-by definition, (listen to weak signals by extraordinary means) your posts make no sense.
HD radio does not work here in the heavily populated northeast corridor where every FM channel is used within an 80 mile radius, the interference is intolerable and HD reception almost impossible without putting up an outdoor antenna. In the big city most people watch sat. TV or cable and their rooftop antennas (which might have been useful for HD radio) blew down, or corroded away years ago. HD radio can't even be picked up indoors in many locations within sight of the transmitting towers!
HD radio is just a total destructive, disaster.

Gee - if only that were true. I talked to an engineer yesterday who was listening to a HD station on the JVC car radio 50 miles out and totally dropout free.

 

[SUPERCASTER]

Hey guys! I have the Radio Shack Accurian HD tuner. It definitely decodes and plays AM Stereo. I am listening to it as I type this and it is playing very nicely in Stereo on my station, although the frequency response on the speakers is not so good as other AM Stereo tuners. The Accurian is the only HD I have, so I don't know about others. Bill. wnmb am stereo 900.

Motorola holds the patents on C-Quam AM stereo, and are always thorough, have tons of lawyers, and their patents are all encompassing. I smell a lawsuit! By, by, Cell Shack!
If they had a license or permission they would have (probably) been required to label the Accurian HD as C-Quam compatible, right?

 

[SUPERCASTER]

easypeazy said:

DXing except as a hobby is a concept whose time has passed. There is simply no need for it today. Even if you live in an area where there are no local signals whatsoever (and those are rare) you still have options in XM and Sirius.

Since all HD/IBOCers are DXers-by definition, (listen to weak signals by extraordinary means) your posts make no sense.
HD radio does not work here in the heavily populated northeast corridor where every FM channel is used within an 80 mile radius, the interference is intolerable and HD reception almost impossible without putting up an outdoor antenna. In the big city most people watch sat. TV or cable and their rooftop antennas (which might have been useful for HD radio) blew down, or corroded away years ago. HD radio can't even be picked up indoors in many locations within sight of the transmitting towers!
HD radio is just a total destructive, disaster.

Gee - if only that were true. I talked to an engineer yesterday who was listening to a HD station on the JVC car radio 50 miles out and totally dropout free.

Yes, what I said is true! And listening in car to a JVC car radio is not indoors, so your pervious post is just another HD peddler's deception, as usual.

 

[EasyPeazy]

Yes, what I said is true! And listening in car to a JVC car radio is not indoors, so your pervious post is just another HD peddler's deception, as usual.

Deception? You claim HD can't be picked up within sight of the transmitting towers. Are these radios in antenna nulls or lead lined rooms?

 

[SUPERCASTER]

Yes, what I said is true! And listening in car to a JVC car radio is not indoors, so your pervious post is just another HD peddler's deception, as usual.

Deception? You claim HD can't be picked up within sight of the transmitting towers. Are these radios in antenna nulls or lead lined rooms?

Nope, just in ordinary single story masonry buildings.
Since HD radio uses adjacent channels, it is broadcast at about one hundredth the stations licensed power, and just does not have much building penetration even in city grade coverage areas.
Since no complete, independent, technical evaluation of iBiquity/HD radio was ever made, these problems are just now showing up.
HD radio stands for Horrendous Disaster.

 

[Ray22]

Good point! There hasn't been ANY technical review of any HD radio showing plots of audio response, separation, s/n, etc. The standard radio specs. I understand, IBOC radio station's aren't allowed (by their licensing agreement) to disclose (even measurement isn't encouraged!) any real world measurements on their systems. Surprising that no radio reviewer hasn't put a HD radio through battery of tests and reported same. Note also there are NO FCC standards/specs yet published on IBOC system...other than the RF mask. Go look for any published audio specs on distortion levels, etc.