Up here in Alaska I can finally announce Spring is
here as the last of the snow melted in the garden today and 812
squadron Mosquito command has air superiority. We are effectively at 24
hours daylight so Dx on MF and LF is sparser than winter...
Ive had a project to clear which has been with me for 4 years and that
is to clean up the incoming and outgoing 2 phase AC mains connection to
reduce the conducted noise into the house wiring and what ever I do
here is fairly 'blocked" to some extent to the outside world - ie the
NSA snooping on my AC supply :-)
http://kl7uk.com/Corcom.jpg
Shows the ongoing installation of 2 x (up to) 3 phase 200A Corcom
filters - one for my emergency 100A board (with Gen bypass) and the
other for non-essentials. The system is now live and I can tell you my
general reception of 'mains" borne conduction QRM is lower, but I have
some work to quantify the overall results. Its not perfect as I do have
a little 'C and L" as Im using the same input and output Galv pipe for
all the conductors but in real terms the insertion losses are going to
be respectable.
Just thought Id share
Laurence KL1 X WE2 XPQ (about to change callsigns again to confuse)
