In article ,
"David Eduardo" wrote:

"Telamon" wrote in message
...
Yeah, with the IBOC on that's true but with just the analog signal it's
not. I have the luxury of knowing since I have a receiver that will go
out to 16KHz.

The NRSC study had nothing to do with HD... it was based on finding the
optimal bandwidth for AM with today's environment and today's receivers
in
analog mode. The feeling had been that the NRSC 10 kHz standard was,
indeed,
too wide for the best sounding AM operation... and they were right.

Well, in my own tests I'd say about 8KHz is best. This what I use most
of the time for BCBAM and SW.

However, I would imagine the bandpass of your receiver is better than the
stuff sold at WalMart and Bed, Bath and Beyond... and that's what most home
radios are like today. Most, the study found, were down 10 db at 3.9 kHz, so
wide bandwith at the transmitted end ended up causing apparent distortion at
the receiver.

Well, the passband is brick wall DSP on one radio but the other two are
low frequency LC type with good filter shape.

--
Telamon
Ventura, California