[Elecraft] An interested link

[David Gilbert]

The History section of that web site applauds the fact that ESSB 
enthusiasts have been able to push their 3 KHz bandwidth rigs to 4 KHz 
and beyond using external equalization, and it points out that the 
leading edge for EESB is now moving past 6 KHz in transmitted bandwidth 
thanks to some of the new SDR rigs.  Here are a couple of illuminating 
and disturbing quotes:

"It's becoming more recognized that the improved fidelity of ESSB has 
signal-to-noise advantages over the old traditional forms of narrower SSB"

"... with the decline of new amateur radio operators to populate the 
bands, the wider bandwidth necessary for high quality SSB is not as much 
of an issue as it was 10 or 20 years ago."

One of the hams lauded in that section for his work with ESSB lived near 
me when I was still in Scottsdale, and you could hear his splatter as 
much as plus/minus 8 KHz when he was on the air with his buddies on 20m 
in the evening.  He was a casual friend of mine so I mentioned it to 
him, and his dismissive answer was that he must be overdriving my rig 
... even though I told him that I had checked for that by using a piece 
of wire for an antenna to keep his signal below S7.  I often monitored 
those guys while I was doing work-related stuff on the computer.  They 
constantly tweaked their equalizers and critiqued the sound of each 
other's modulation, but I never once heard any of them check to see how 
wide they were.

I have no problem at all with people experimenting with ESSB as long as 
they avoid interference with other activity on the band, but promoting 
ESSB as a mainstream mode on the HF bands seems to me to be the same as 
advocating an across-the-board return to AM, complete with its power 
inefficiencies and waste of spectrum.  I just don't get it.

It's just another reason for me to stick with CW, I guess ...

Dave  AB7E



Hector Padron wrote:
> Some ones might be interested to read this:
>  
> http://www.essb.us/index.html
>  
> AD4C
>
>
> "The difference between genius and stupidity is that genius has its limits". -- Albert Einstein
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