On 9/12/10 8:43 PM, Richard Evans wrote:
So obviously either they use more channels or they have less bandwidth
than that, because these sat systems are not good sounding ones.

I was wondering about this.

Could 60 channels in 4.5 Mhz of spectrum produce good sound quality?
Not sure, but thinking about it, it sounds unlikely.

Do they actually do this (providing 60 good sounding channels)?
I seriously doubt it.

They don't. Far from it. 4,5 MHz of spectrum is quite a lot by the way,
but the signal strength from the satellite is not going to be strong.
For high efficiency or bits per Hertz you need a strong signal. ISTR the
average for the channels is 46 kbps.

gr, hwh