[RFI] 2nd harmonic help

Missouri Guy n0tt1 at juno.com
Tue Feb 3 23:21:21 EST 2009

> 1) Increased antenna separation  2) Antenna directivity  3) minimize 
> feedline 
> interaction with SERIOUS coax chokes at the feedpoint of each 
> antenna 4) Buy 
> a K3 to improve the overload capability. 5) Add resonant stubs to 
> both 
> feedlines. 6) Avoid twinlead as a feedline -- it's not practical to 
> choke it. 

All good suggestions.   For item 5, resonant stubs, there
was a QST article written long ago.  Search the QST index
for "The BOA, a constrictor for unwanted radiation".  I think
you'll find what you need there.

Charlie, N0TT

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