[BC] Overcrowding & noise floor on AM

DHultsman5@aol.com DHultsman5
Tue Mar 20 10:30:07 CDT 2007


 
If a station was on the lower frequencies, below 500 kHz. and digital only,  
there would probably be enough bandwidth for full response audio.  The  
digital would be on the main carrier of the LF transmitter the analog would  remain 
on the MW carrier  (No  IBUZ).   Similiar to what is  being done in Europe 
with DRM.  
Now lets see if there will be a rush to buy Blaupunkt car radios??
 
D
 
In a message dated 3/19/2007 8:56:20 AM Central Daylight Time,  
tonne at comcast.net writes:


>  Let the clears have real clears again below 500 and 
> require them to  simulcast but with full digital and
> max audio quality on the low  frequency. 

The antenna bandwidth "down there" starts to get  "iffy"
as you go lower and lower in frequency (below 500 kc).
So there  would be a set of compromises between 
upper-end audio limit, operating  frequency and tower 
height.  I'm not saying   not  doable   but there would be
some problems in those  areas.

- JimT








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