[AMRadio] Proposed AM 9 KHz BW limitation


Edward B Richards zuu6k at juno.com
Mon Aug 16 09:33:15 EDT 2004


  I see that the 9 kc bandwidth is at -26 db (not dbm in which 0 db is
set at 1 mw). -26 is way down there. Normally bandwidth is measured at -6
db, the half way point. Since the sides slope, what is the bandwidth at
-6 db? It could easily be 6 kc or so. 

73, Ed Richards K6UUZ


On Mon, 16 Aug 2004 06:11:39 -0500 Mark Miller <markm at kramrellim.com>
writes:
> Since we are talking AM I think the audio would have to be 4.5 kc 
> wide to 
> produce an AM signal at 9kc -26dBm.
> 
> 73
> Mark N5RFX
> 
> At 10:02 PM 8/15/2004, you wrote:
> >And, just for the sake of me knowing, why would you (or ANY AM'er 
> for that
> >matter want to have audio that was 9kc wide?
> 
> 
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