Hi - There has been a wave of new members (5 in 24 hrs) joining the
group, and I would like to welcome them - I hope they will find (and
existing members continue to find) the group useful.

There has been little activity in this group recently, perhaps because
the question it has been asking has mainly been answered.

Meanwhile, I am very pleased with the qrss rx I have made, which
embodies the ideas discussed here, and I use it daily on the 10.140MHz
qrss subband. It is described here -

http://g4oep.atspace.com/qrss/qrss.htm

I would like to develop a technique for measuring its IP3 point, but
at present I am holding off because I am not confident that I can make
a rf 2-tone source which has sufficiently low intermod components, or
measure them in anything I might make.

As far as I know, no-one has made a ssb qrss tx using one of the
filters we have talked about.

http://g4oep.atspace.com/crystal_filters/signal_frequency_crystal_filters.htm

Newcomers might find it useful to look in the 'Files' section of this
group - there is a huge collection of resource material there.

I am curious to know where our new members have been recruited from -
has this group been referenced on some other group which we should
know about ?

On the subject of groups, I hope that newcomers know about the 'Knights' -

Knightsqrss mailing list
Knightsqrss@...
http://mail.cnts.be/mailman/listinfo/knightsqrss_cnts.be
Knightsqrss clipboard http://www.on5ex.be

73, Andy G4OEP