[GreenKeys] Fwd: [ham-hist] Hugo Gernsback's callsign?

[Richard Knoppow]

     See
 
http://www.radioworld.com/headlines/0045/opinion-39let39s-keep-am-sounding-good39/313449
     I have not researched any further but evidently the current FCC 
limit is 10Khz. 5 Khz has been adopted by a couple of large broadcasters 
but is not a regulation. I think the NRSC standards adopted by the 
industry in the 1980s probably started the snowball of low quality going.
     Also IMO there are far too many stations on the air. If they can't 
make money with the diluted audience one wonders why people want to own 
them. I have some ideas about that but they are rather political.

On 8/15/2017 3:10 PM, David I. Emery wrote:
> On Tue, Aug 15, 2017 at 02:52:35PM -0700, Richard Knoppow wrote:
>>     There was never a restriction on AM bandwidth but broadcasters have
>> decided to limit it in order to make room for digital signals.
> 
> 	My understanding has been that some time in the late 80s or
> early 90s the FCC required that AM stations meet a spectral mask...
> consistant with 5 Khz response but not beyond that...
> 
> 	Before that era I think there wasn't much of any restriction.
> 
> 
> 

-- 
Richard Knoppow
1oldlens1 at ix.netcom.com
WB6KBL