[1000mp] bandpassfilters and coaxstubs

[Marc Wullaert]

Noel,
40M is not simply as that to reduce.I have build a M/S station in my garden
with a separation of antennes off max 70 feet in half circle.
I use on one radio W3NQN bandpassfilters and on the other one ICE filters
see http://users.telenet.be/on4ma/OT5G.html
I have build coaxial stubs for each band .The book from W2VJN is a must have
item
maybe under the christmas tree to build stubs on your one.You can order also
coax stubs
from him or dunestar if you have not a annalyzer.Ant-analyzer is one thing
but a borrowered a computer
controlled one
http://www.qsl.net/iw3hev/Antenna%20Analyzer%201.8-60%20MHz-Eng.htm
where you can see multiple freqeuncies.
We still have some little noise on 40m and 15m even with a configuration of
multiple stubs for
this bands.Second or tird harmonics you always detect buth with reduced
signal.I can run radios
now near 20kc of the second or third harmonics.

marc on4ma
73