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are their any AM HD Stations left but one

W

wibgradio99

I am in the Philly Metro Area and I thought at night I may pick up some distant AM HDs. I tried late at night 7 nights in a row received a station on every frequency and the only one in HD was WPHT 1210 nothing else. My question is are their any left besides 1210. Is there a list of AM HD signals, the HD Radio directory only shows FM.
 
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Not sure about the east coast but there's a few big ones out west... KSL 1160 in SLC, KCBS 740 in SF. Also a number around Denver -- KLZ 560, KLTT 670, KLVZ 810, KDCO 1370 off the top of my head. I know KLZ owns the first 3 and possibly LMAs the 4th and if they have any others around CO -- not sure if they own stations in other markets, but they are the only actual group that seems to truly believe in AM Digital on their existing stations. WWFD 820 is all-digital (no analog) and I believe another station is going to do the same... apparently the coverage is much better than analog-only, and the fade and noise issues are gone.

That said, in my corner of the pacific NW, pretty much all stations that ran digital at one time or another have turned it off... KEX, KHHO, KPTR, KUOW-AM have all turned theirs off, and I know there are others I am forgetting.

I remember an older engineer once told me (not sure how correct it is) that AM HD products were only ever made with Gen 1 and Gen 2 exporters and the newer stuff really hasn't been designed for it -- so the reason that you are seeing AM HD just go off the air is that the old exporter goes out and they just don't bother to replace it. Frankly the injection levels were so low at AM digital didn't really make sense because by the time you got to an area with enough noise to disturb the analog signal, the digital signal was long gone. I remember that KEX (50kw) would lose digital signal within about 10 miles, and KUOW-AM (1kw) in about 1-2 miles from the tower -- so that very well could be the truth... I haven't dealt with much AM, and what little I have has not been digital -- so I'm not sure... but makes sense to me. I know there were a number of first adjacent complaints as well.
 
ssndradio said:
Not sure about the east coast but there's a few big ones out west... KSL 1160 in SLC, KCBS 740 in SF. Also a number around Denver -- KLZ 560, KLTT 670, KLVZ 810, KDCO 1370 off the top of my head. I know KLZ owns the first 3 and possibly LMAs the 4th and if they have any others around CO -- not sure if they own stations in other markets, but they are the only actual group that seems to truly believe in AM Digital on their existing stations.
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KDCO is on 1340 and is not in HD.

Crawford Broadcasting owns 560 KLZ, 670 KLTT, 810 KLVZ, 1220 KLDC, all of which are running HD. Pillar of Fire has HD on 910 KPOF. When 1190 KVCU in Boulder gets its new transmitter in operation, it may be an HD station as well. Crawford owns multiple stations around the country; for example 770 KCBC in Manteca, CA, sort of a Bay Area and Sacramento rimshot.

KCBS in San Francisco dropped AM HD broadcasting years ago.
 
The only AM HD you're going to get in Philly besides WPHT is possibly 820 WSHE from Maryland via skywave at night, which is a digital-only signal.
 
Have picked up WBBM 780 and KMOX 1120 skywave in HD a couple of years ago. WYDE 1260 broadcasts in MA-3 and while I hear their digital signal hash at my home near Huntsville, I'm too far away to unlock their signal.
 
About a year ago in the Midwest along I-35 ...
From Southern Kansas, Oklahoma & North Texas,
I Found These AM Stations broadcasting in HD:

1170 KOTV - Tulsa, Oklahoma (News)
1080 KRLD - Dallas Texas (News)

There was another AM Station Broadcasting in HD in Dallas ... Tho I can't recall with 100% certainty, it was broadcasting in Spanish, and not too far up the dial from the other HD on 1080 ...
 
Ke4kls said:
Have picked up WBBM 780 and KMOX 1120 skywave in HD a couple of years ago. WYDE 1260 broadcasts in MA-3 and while I hear their digital signal hash at my home near Huntsville, I'm too far away to unlock their signal.
Click to expand...

WBBM and co-owned (and co-sticked) WSCR 670 each turned off HD a few years ago when the diplex at the Blomingdale transmitter began. It was just too much trouble for the minuscule AM-HD audience.
 
KyleSmith1988 said:
About a year ago in the Midwest along I-35 ...
From Southern Kansas, Oklahoma & North Texas,
I Found These AM Stations broadcasting in HD:

1170 KOTV - Tulsa, Oklahoma (News)
1080 KRLD - Dallas Texas (News)

There was another AM Station Broadcasting in HD in Dallas ... Tho I can't recall with 100% certainty, it was broadcasting in Spanish, and not too far up the dial from the other HD on 1080 ...
Click to expand...

I think that station you're referring to is KFLC/Benbrook on 1270 AM. I'm not sure if the station still broadcasts in HD or not, as there's no information about it on the station's Wikipedia article, but it and KRLD are one of only a handful of stations to have AMHD broadcasts in north Texas.
 
Probably, and maybe likely.
Both had a strong signal in Ennis TX but still had plenty of HD dropouts on AM at least once or twice a minute.
 
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