[Elecraft] Listening to SSB on K2 without KSB2

[Dave Lowenstein]

Thanks for the replies Don, David, & Philipe.  Sounds like it ought to work.
I'm a CW man on the verge of ordering a K2 but like to just listen to SSB
while I'm puttering around the shack.

73,
Dave
N7AF

----- Original Message ----- 
From: "W3FPR - Don Wilhelm" <w3fpr at earthlink.net>
To: "Dave Lowenstein" <cyberider at gmail.com>; <Elecraft at mailman.qth.net>
Sent: Tuesday, February 22, 2005 10:12 AM
Subject: RE: [Elecraft] Listening to SSB on K2 without KSB2


> Dave,
>
> The variable filter is not completely unsuitable for SSB listening, it
just
> has a high passband ripple which can become tiring after a time to some
> people's ears.  I use the variable filter as a narrow SSB receive filter
to
> combat high pitched QRM (1.8, 1.7 or 1.6 kHz widths), but it does OK out
to
> about 2.2 or 2.3 kHz.  The passband is relatively flat up to about 1.2 kHz
> and above that the ripple becomes progressively greater as the width is
> increased.
>
> 73,
> Don W3FPR
>
> > -----Original Message-----
> >
> > Is the K2 unsuitable for listening to SSB if the KSB2 isn't installed?
> >
> > 73,
> > Dave
> > N7AF
> >
> > > The SSB filter is much more pleasant to use than the CW filter set for
> > > a wide bandwidth. The SSB filter has a flat passband, whereas the CW
> > > filter, being varactor controlled, develops a lot of ripple by the
time
> > > you widen it out. We experimented with variations on the filter
> > > topology before releasing the K2 to production, but it was getting too
> > > complex.
> >
> >
>
>