[Top] [All Lists]  [TowerTalk] RE: [CQ-Contest] Testing Stubs
To: <> From: ( Date: Tue Aug 5 12:48:54 2003 you are seeing what
i would expect if there were: 1. a source of harmonics after the
stubs, on the tower, near the tower, etc.   2. a leak between
the radio and stub that radiates the harmonic before the  stub
can do its job. 3. overload in your receiver thats generating
the harmonic there.  while the stubs are probably working ok the
other routes overwhelm the  radio/amp generated harmonics that
are properly suppressed.  ground rods are  probably not
involved.  grounding of equipment cases, good coax with properly
installed connectors, and in some cases fixing leaks caused by
bad cases on  radios, amps, swr meters, antenna tuners, antenna
switches, etc is necessary.  > Gee, I'm not alone in receiving
less-than-stellar performance from stubs.  I > have made several
sets of stubs using various methods of tuning them and > they
just don't work at my QTH.  But I took one of my stubs to a
friends QTH > on