[Elecraft] Digital SSB..?

[Fred Jensen]

Brian Lloyd wrote:

> Yes, we are talking about the same thing. They take the voice and 
> digitize it and then put the data stream into multiple PSK carriers that 
> fill up the entire voice bandwidth (2.7KHz).

Ever see a digital TV signal on a spectrum analyzer?  A UHF FM group I 
belong to has a site at Meadow Lakes, CA ... the "Mt. Wilson of Fresno." 
  On the scope, a DTV signal is a rectangle, 6 Mhz wide, and constant 
envelope.  I suspect digital voice is pretty much the same only the 
rectangle is 2.5Khz wide.

73,

Fred K6DGW
- Northern California Contest Club
- CU in the 2007 CQP Oct 6-7
- www.cqp.org