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HD Reception BLOWS!

A

audiophile.

Guest
I spent some time in Taylor over the holiday and setup my Accurian HD radio. The results are less than stellar. You practically have to be next door to the tower to get HD radio to work. :rolleyes

Basically you need 60 dBu get HD to lock on at all and 73 dBu to 83 dBu to get it to work reliably on FM. (My case in point is WMXD and WVMV were basically unstable in southern Wayne county! WOMC and WKQI didn't work at all! HD seems to favor the stations with higher antenna heights.)

On AM results are even worse, basically you need 74 dBu get HD to lock on at all and 83 dBu to 93 dBu to get it to work reliably on AM. (My case in point is WRDT was unstable in southern Wayne county! WFDF hardly ever locked on!)

http://s08.picshome.com/26f/iboc.jpg

Call Sign Signal in dBu mV/m Principal City State Frequency Facility ID IBOC IBOC Reliability Analog Reliability
WUOM
61.4 1.17 Ann Arbor MI 91.7 66319 Y Intermittent Excellent
WMXD
80.1 10.1 Detroit MI 92.3 59596 Y Intermittent Excellent
WVMV
78.1 8.07 Detroit MI 98.7 25448 Y Intermittent Excellent
WRDT
77.8 7.76 MONROE MI 560 25083 Y Intermittent Excellent
WDRQ
72.6 4.25 Detroit MI 93.1 70040 Y OK Excellent
WCSX
73.5 4.74 Birmingham MI 94.7 25084 Y OK Excellent
WDVD
73.7 4.83 Detroit MI 96.3 8631 Y OK Excellent
WKRKFM
71.8 3.91 Detroit MI 97.1 9618 Y OK Excellent
WJLB
76.7 6.87 Detroit MI 97.9 59592 Y OK Excellent
WYCD
73.1 4.51 Detroit MI 99.5 1089 Y OK Excellent
WNIC
78.8 8.7 Dearborn MI 100.3 6594 Y OK Excellent
WRIF
75 5.61 Detroit MI 101.1 11278 Y OK Excellent
WDETFM
80.7 10.86 Detroit MI 101.9 71189 Y OK Excellent
WMUZ
80.1 10.06 Detroit MI 103.5 73298 Y OK Excellent
WMGCFM
73.6 4.8 Detroit MI 105.1 40407 Y OK Excellent
WDTWFM
81.8 12.31 Detroit MI 106.7 59952 Y OK Excellent
WJR
115.3 586.5 DETROIT MI 760 8626 Y OK Excellent
WWJ
102.8 139.1 DETROIT MI 950 9621 Y OK Excellent
WDFN
106 199.6 DETROIT MI 1130 59969 Y OK Excellent
WFDF
73.9 4.96 FARMINGTON HILLS MI 910 13664 Y Unusable Excellent
WEMU
50.7 0.34 Ypsilanti MI 89.1 18311 Y Unusable Good
WKQI
74.5 5.32 Detroit MI 95.5 6592 Y Unusable Excellent
WHTD
62.6 1.35 Mount Clemens MI 102.7 54915 Y Unusable Excellent
WOMC
75 5.65 Detroit MI 104.3 28623 Y Unusable Excellent
WDMK
72 4 Detroit MI 105.9 4597 Y Unusable Excellent
 
Thanks for the reception report, audiophile.
The better, clearer, reception, and other wild claims HD radio has made, exposes it as a complete fraud.
Add to this all the adjacent channel interference it causes and
HD radio is devolution, not evolution.

HD supporters seem to have trouble understanding the word fraud, so here is the definition from Merriam-Webster's:

www.m-w.com

Main Entry: fraud
Pronunciation: 'frod
Function: noun
Etymology: Middle English fraude, from Anglo-French, from Latin fraud-, fraus
1 a : DECEIT, TRICKERY; specifically : intentional perversion of truth in order to induce another to part with something of value or to surrender a legal right b : an act of deceiving or misrepresenting : TRICK
2 a : a person who is not what he or she pretends to be : IMPOSTOR; also : one who defrauds : CHEAT b : one that is not what it seems or is represented to be
synonym see DECEPTION, IMPOSTURE
Click to expand...
I believe the word, fraud, applies to HD Radio's many false or grossly exaggerated claims.

Here are just a few:

The Same Unmatched Fidelity as Your Digital Music

FM stations now with CD-quality sound
AM stations now with FM-quality sound
Crystal-clear reception with no audio distortion

New artists and new personalities
New genres, new music from abroad
New kinds of programs you’ve never listened to before
New experimental formats that no one has ever heard

New channels to play more of what you like to hear
More talk and music from the stations you’re plugged into
More complete sets and more full albums
More in-depth interviews
More lengthy talk and more detailed news

All digital, all the time
No hiss, distortion or station drop off
Click to expand...

And it goes on, and on, from there.

HD radio = Devil-lution not evolution.
now there's solid, reliable technology. Never a pause for "buffering, buffering, buffering, buffering, buffering, buffering, buffering, buffering, buffering, buffering, buffering, buffering, buffering, buffering, buffering, buffering, buffering, buffering, buffering, buffering, buffering, buffering, buffering"
Click to expand...
 
Audiophile wrote: "You practically have to be next door to the tower to get HD radio to work."

Thanks for the detailed reception report. What kind of antenna did you use?

I'm sure HD Radio proponents would argue that you would've had fewer problems if you merely set up a yagi antenna in the center of the living room like most normal people do.
 
vsa said:
Audiophile wrote: "You practically have to be next door to the tower to get HD radio to work."

Thanks for the detailed reception report. What kind of antenna did you use?

I'm sure HD Radio proponents would argue that you would've had fewer problems if you merely set up a yagi antenna in the center of the living room like most normal people do.
Click to expand...

It's an interesting chart with a few anomolies

The WMXD is odd. As is the WVMV, the WKQI and The Big "O" (Are they still called the Big "O")

I'm a little confused (Which I know will start at ^%$^% Storm,) but what would have had to happen for an HD station to get an excellant? I mean you either get them or you don't, right. Are they dropping out? Bad sound quality?

Clouseau
 
vsa said:
Audiophile wrote: "You practically have to be next door to the tower to get HD radio to work."

Thanks for the detailed reception report. What kind of antenna did you use?

I'm sure HD Radio proponents would argue that you would've had fewer problems if you merely set up a yagi antenna in the center of the living room like most normal people do.
Click to expand...

I used the supplied antenna strung up the window. AM was taken at 11:30AM to avoid skywave influencing reception, loop direction was maximized for the station.
 
It's an interesting chart with a few anomolies

The WMXD is odd. As is the WVMV, the WKQI and The Big "O" (Are they still called the Big "O")

I'm a little confused (Which I know will start at ^%$^% Storm,) but what would have had to happen for an HD station to get an excellant? I mean you either get them or you don't, right. Are they dropping out? Bad sound quality?

Clouseau
Click to expand...

WMXD was surprising. My guess WVKS 92.5 from toledo was mostly to blame. WVMV, WOMC and WKQI all are less than the normal 500'.

HD only had three ratings, Unusable, Intermittant, and OK.

Analog had Bad, Poor, Fair, Good, and Excellent.
 
audiophile. said:
It's an interesting chart with a few anomolies

The WMXD is odd. As is the WVMV, the WKQI and The Big "O" (Are they still called the Big "O")

I'm a little confused (Which I know will start at ^%$^% Storm,) but what would have had to happen for an HD station to get an excellant? I mean you either get them or you don't, right. Are they dropping out? Bad sound quality?

Clouseau
Click to expand...

WMXD was surprising. My guess WVKS 92.5 from toledo was mostly to blame. WVMV, WOMC and WKQI all are less than the normal 500'.
HD only had three ratings, Unusable, Intermittant, and OK.
Analog had Bad, Poor, Fair, Good, and Excellent.
Click to expand...


I've done a few of those surveys labeled like that at work. ;) Your position is noted, without skewing your data. ;D


On looking at the Radio Locator data for WVKS and WMXD.... Well I shouldn't do that. Let's try...

When looking at the FCC maps at
http://www.fcc.gov/fcc-bin/FMTV-service-area?x=FM234061.htmland
http://www.fcc.gov/fcc-bin/FMTV-service-area?x=FM242077.html

Those two stations "ARE" pretty close.

It's actually funny. I thought by looking at the map that "Hey, that Detroit station must be co-located with Tower 92". Duh. It's been 24 years... they ARE the old Tower 92.

This is really peculiar. By looking at the maps this should not have happened. According to the "NO BS" results I've seen, 1st adjacent at that level "Which is admittedly close" SHOULD work. (Based on the Other sideband).

According to data, height should not really be a problem. If anything, wattage has a greater effect due to building penetration. And 1st adjacent in this situation shouldn't be a problem.

I know the Local CC engineer here in my town... Let me see if I can get an answer to this. After all, if this is fact, it's not like you're the only one getting these results.


Clouseau

BTW be advised that often this method of getting info through CC doesn't work. We tried to get a local 1510 AM to shut down after dark to protect WLAC, but the CE there wasn't interested in getting involved... We'll do our best. C-
 
audiophile. said:
You're welcome! Some of you may have missed I made a nice chart:

http://s08.picshome.com/26f/iboc.jpg
Click to expand...

Thanks again for your research.
The chart was great. I printed it out to keep in my HD radio files, and would like permission to include it along with my communications about HD radio.

Besides poor HD Radio reception, many stations are receiving interference from adjacent channel buzz of HD signals.

HD radio does much more harm then good, and hardly begins to provide the benefits that it claims. HD benefits iBiquity and the corporate giants of the HD cartel, not the listener, or local station owners.
 
audiophile. said:
SUPERCASTER said:
audiophile. said:
You're welcome! Some of you may have missed I made a nice chart:

http://s08.picshome.com/26f/iboc.jpg
Click to expand...

Thanks again for your research.
The chart was great. I printed it out to keep in my HD radio files, and would like permission to include it along with my communications about HD radio.
Click to expand...

You have my permission...
Click to expand...
You have my appreciation.
I wonder who will be chairing the Commerce Committee this next term?
Perhaps they can get an explanation about how a defective, interfering, system like HD Radio got interim approval with no independent technical revue, from the FCC.
Very unusual.
 
Notice the chart shows that MOST HD stations with good analog reception were also receivable in stable HD. That goes for AMs as well as FMs.

Was the ratio 100 percent? Nope. Question: Have you ever lived in a city where you could receive 100 percent of the local FM stations in noise and interference-free stereo? I'll bet the ratio was similar to what's detailed on the chart.

Another point...assuming that SOME of the stations on that chart have an HD2 channel, then (counting analog and digital) the addition of HD to a radio in that market still results in MORE listening options (than would analog reception alone)! See how rosy life can be when you're a "half-full" kind of guy?
 
Stop cooking the books, I only listed stations in HD for brevity.

Analog reception was good on 200 watt high school stations at the same distances the HD wouldn't work.

WFHR at 51 dBu was listed as good.
WEMU at 50.7 dBu was listed as good.
WDTR at 42 dBu was listed as fair.

There is no problem with the Radio Disney station WFDF with transmitter in Monroe county (very close by) with 73.9 dBu in analog. HD only kicked twice but not long enough to even hear it...

WRDT at 77.8 dBu wasn't much better...
 
Uh, it isn't "cooking the books" to say that, even if you received half as many stable hd signals, it still adds to the quality, and quantity of available signals :D
 
I can't wait see the cartoons appearing that say "Honey, the HD-2 reception is better without you in the room... [with a picture of the wife holding a rolling pin]" :D
 
Actually Audiophile that's funny as hell. MAKE the cartoon, and I'll tape it to my Accurian :)
 
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