[BC] AM Interference

Robert Meuser Robertm
Fri Dec 16 10:34:18 CST 2005


Mike McCarthy wrote:

> It might be that the night time operation will occur when the analog 
> sunsets.  At which point, most of the interference issues will be moot 
> and actually might allow many more non-class A stations to ditch their 
> DA arrays and go omni or to increase their night power. Some might 
> even be able to offer night service for the first time. WHY...because 
> the D/U ratios to the adjacent channels will all go out the window.  
> Especially on 2nd and 3rd adjacent channels.  You could almost 
> co-locate stations only two channels apart instead of the 4 channel 
> spacing we have now.
>
> I think THAT's where digital will shine in the eyes of the station 
> owners. But only when everyone goes digital and back to 10KHZ primary 
> occupied bandwidth.
>
Mike

 The channel occupancy will still be 20 khz. The will still be a first 
adjacent channel problem only with digital a station will fall back to 
the core mode, loosing added services. In my opinion we are expecting 
too much from digital on medium wave. We could have a better digital 
service with fewer bells and whistles.

R


R


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