Buckeyes2001
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« on: March 07, 2013, 10:00:39 PM » |
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Noticed that 690 and 710 had IBOC hash and sure enough, my HD radio showed HD again for WLW.
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KR4BD
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« Reply #1 on: March 07, 2013, 10:23:07 PM » |
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Noticed that 690 and 710 had IBOC hash and sure enough, my HD radio showed HD again for WLW.
This is not good.... |
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Alumni of....
WKTR-TV Kettering/Dayton, OH 1968
WVUD-FM Kettering/Dayton, OH 1968-70
WILO AM/FM Frankfort, IN 1970
WGEE AM/FM Indianapolis, IN 1970-71
WCGW AM Nicholasville/Lexington, KY 1994-2001
ARRL Member Since 1975
Medium Wave DXer Since 1955 - NRC Member
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MarioMania
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« Reply #2 on: March 08, 2013, 03:40:39 AM » |
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Did they give any reason why it's back?
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ddsparxx
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« Reply #3 on: March 08, 2013, 03:49:31 AM » |
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They have got to be out of their minds to have the IBOC back on. I can hear the loud hash on 690 at night.(but less hash on 710)
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rbrucecarter5
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« Reply #4 on: March 08, 2013, 07:18:56 AM » |
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They obviously don't care about building penetration in the Cincinnati area, or about coverage in the suburbs on cheap radios.
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Schroedingers Cat
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« Reply #5 on: March 08, 2013, 10:15:41 AM » |
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I have a more sinister theory, but I won't mention it. Who was the respected radio person who said that IBOC was legalized jamming? I recommend that no one mention when IBOC is turned off on a station, as it alerts the authorities that support it to get it back on.
How often has it been that just when we think a station has dropped IBOC permanently, they turn it back on? I live in an area that currently has at least a dozen useable first adjacent signals blocked by sidebands. When you count the main channel that is about 1/7 of the AM band. The FM is worse as far as blocked signals. AMs are packed at 0.5/0.5 mV/m first adjacent, not the newer 0.5/0.25 first adjacent, on which interference levels were set. Also, FMs are nearly all short spaced with first adjacents is the most populated areas of the country. Often listenable adjacents that were listenable before no longer are listenable on FM also. It makes even a McIntosh MR-78 or MR-80 obsolete.
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« Last Edit: March 08, 2013, 10:28:53 AM by Schroedingers Cat »
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rbrucecarter5
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« Reply #6 on: March 08, 2013, 10:44:34 AM » |
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I have a more sinister theory, but I won't mention it. Who was the respected radio person who said that IBOC was legalized jamming? I recommend that no one mention when IBOC is turned off on a station, as it alerts the authorities that support it to get it back on.
Let's try the theory: HD is off on WOAI. OK, guys, go get WOAI to turn it back on. |
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1L6E6VHF
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« Reply #7 on: March 08, 2013, 07:07:39 PM » |
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I just noticed that EVERY AM station that is on a frequency adjacent to one carrying Sean Hannity has its IBOC off!  |
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audioguy
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« Reply #8 on: March 09, 2013, 09:33:07 AM » |
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Very disappointed that they turned their jammer back on!! Just another reason to abandon AM radio.
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Proud owner of a classical low power high-fidelity AM radio station
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Tom Wells
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« Reply #9 on: March 09, 2013, 12:22:15 PM » |
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Well, at least Chicago AM stands as a pretty good example of droppage.
Only 620 ( Milw), 780, 1390, and 1690 continue to spew forth.
The nature of ionospheric "saturation" from solar radiation is what supresses AM in daytime.
Its effect, as AM is propogated and decoded, is exactly the same as the wideband "outside the mask"
rf real power that becomes part of the sum total at rectification.
This is why I have always maintaned that iboc makes even the most immense-sounding 50 kw AM sound like
a 1kw daytimer over in the next county's county seat on a December day.
The truly competing AM stations gave it up quite a while ago as an audio embarassment.
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Valparaiso Technical Institute 1982, Analog engineer, AM pt 15, inventor with 2 issued patents, former SW pirate. Now offering antique radio repair/restoration and alignment. Stop just wishing that old radio worked! AM1620 podcasts -> http://thomasjwells.podomatic.com/ |
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