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For blind ham radio operators <[log in to unmask]>
Date:
Thu, 5 Apr 2007 13:07:22 -0500
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if i use my imagination i can see digital fm but not am

----- Original Message ----- 
From: "mike" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Thursday, April 05, 2007 1:32 AM
Subject: Re: Fw: [NYDXA-List] FCC Approves IBOC Go Ahead


> Who is the stupid idiot in the FCC who thought of AM digital It will be
> useless the idea of digital is a high quality signal you just wont get at 
> AM
> not only that fading will kill the signal and gaps will be received. Not 
> to
> mention interference to analogue signals VHF is the only band that can 
> take
> it
>
> -----Original Message-----
> From: For blind ham radio operators [mailto:[log in to unmask]]
> On Behalf Of Lou Kline
> Sent: 05 April 2007 03:24
> To: [log in to unmask]
> Subject: Re: Fw: [NYDXA-List] FCC Approves IBOC Go Ahead
>
> There goes the neighborhood!
>
> 73, de Lou K2LKK
>
> At 05:35 PM 4/3/2007 -0400, you wrote:
>>This may be old news to some of you, but it's the first I've heard of it,
>>and I thought I'd share it with the list.
>>
>>Steve
>>
>>========================================
>>
>> From the MT American Bandscan blog website:
>>
>>Thursday, March 22, 2007
>>Nighttime AM IBOC approved - final IBOC rules adopted
>>
>>The Radio Ink online news site reports the FCC has this morning approved
>>final
>>rules for digital terrestrial radio in the US.
>>
>>Read the link for more details. A few highlights:
>>
>>No prior FCC approval is necessary to begin digital operation.
>>
>>AM stations, previously limited to daytime-only digital operation, will be
>>allowed to run their digital signals at night.
>>
>>Stations must offer at least one free-to-air program stream, simulcasting
>>their analog signal. Additional program streams may be broadcast, either
>>free
>>or subscription (FM only; AM IBOC lacks the technical ability to
> multicast).
>>
>>Content rules - EAS, legal IDs, etc. - will be applied to all streams of
> the
>>IBOC signal.
>>
>>Digital-only stations will not be allowed at this time (apparently this
> will
>>stymie the plans of North Carolina stations WHDX and WHDZ which had
>>reportedly
>>planned to sign on as digital-only operations). IBOC stations must 
>>maintain
>>their analog operations.
>>
>>No deadline has been set for shutting down analog radio and going
>>digital-only.
>>
>>The FCC has not yet released a Public Notice on this (keep an eye on the
> FCC
>>website). Usually, this kind of proceeding takes effect 30 days after
>>publication in the Federal Register; said publication will take between a
>>few
>>days and a week. So one might expect AM stations to begin operating in
>>digital
>>mode at night in about 5 weeks, around the beginning of May. I would not
>>rule
>>out the possibility of stations that are already operating IBOC during the
>>day
>>receiving Special Temporary Authority to engage in nighttime digital
>>operation
>>before the new rules go into effect. Indeed, I would not rule out blanket
>>Special Temporary Authority to cover all IBOC stations.
>>
>>Many of the 50kw clear-channel stations are already equipped for IBOC and
>>will
>>likely begin operating at night as soon as the rules go into effect. The
>>likely result will be massive interference in the 640-1220 and 
>>1500-1580KHz
>>bands. I don't see the new rules spurring many stations to add IBOC 
>>though,
>>if
>>they aren't already running it. IBOC is not particularly popular among the
>>smaller stations in 540-630, 1230-1490, or above 1580KHz and I don't think
>>it
>>will become so particularly quickly.
>>
>>I guess time will tell.
>>
>>--
>>Charles J. Hargrove - N2NOV
>>NYC ARECS/RACES Citywide Radio Officer/Skywarn Coord.
>>US Coast Guard Auxiliary Flotilla 5-10 VFC & Div 5 Comms Officer
>>
>>
>>
>>--
>>No virus found in this incoming message.
>>Checked by AVG Free Edition.
>>Version: 7.5.446 / Virus Database: 268.18.26/746 - Release Date: 4/4/2007
>>1:09 PM
>
> Louis Kim Kline
> A.R.S. K2LKK
> Home e-mail:  [log in to unmask]
> Work e-mail:  [log in to unmask]
> Work Telephone:  (585) 697-5753 

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