[Elecraft] Controlled Envelope SSB

Michael Walker va3mw at portcredit.net
Sun Jan 10 13:36:06 EST 2016


Hi David

I doubt you ever will.  If I remember correctly, what the CESSB does is
correctly clamp the gain while ensuring you continue to get full power.

The micro second you go over 100%, the radio starts to clamp RF out and in
fact reduces it considerably.  You would only be able to tell by watching
your RF envelope in a scope.

This is all off the top of my head, but that is what I remember.  I'll have
to read the paper on it again.

There are likely others that know more about it than I do.

Mike


On Sun, Jan 10, 2016 at 11:44 AM, David Anderson <gm4jjj at yahoo.co.uk> wrote:

> Mike,
>
> I don't know why but I kept using ECSSB when I meant CESSB obviously,
> sorry for any confusion!
>
> Although the Elecraft power levelling is excellent, and I have not ever
> had bad reports of audio quality or splatter with my KX3 with the processor
> on or off, it certainly would be nice to be able to increase the talk power
> further as CESSB promises.
>
> 73 from David GM4JJJ
>
> > On 10 Jan 2016, at 16:04, Michael Walker <va3mw at portcredit.net> wrote:
> >
> > This was presented at Dayton this year.  If memory serves me correctly,
> it
> > was installed in SmartSDR 1.2 back in March of 2015.
> >
> > http://www.flex-radio.nl/flex-6000-serie/the-flex-insider/
> >
> > It is very interesting just how big the impact of overshooting has on
> > killing your RF output.
> >
> > This is one of those ... less is more .. situations.
> >
> > Mike va3mw
> >
> >
> >> On Sun, Jan 10, 2016 at 7:53 AM, NC3Z Gary <nc3z at outlook.com> wrote:
> >>
> >> Thanks for the link, my ARRL magazines take more time to get to me now
> >> that I am out in the boon-docks. The new QEX article is a good read, and
> >> with flex incorporating CESSB we can hope that maybe Elecraft can
> >> incorporated it into at least the KX3.
> >>
> >>
> >> Gary Mitchelson
> >> NC3Z/4 Pamlico County, NC FM15
>


More information about the Elecraft mailing list