>
JE>Here's some antenna discussion fodder:
JE>
JE>A typical dipole cut for the lowest frequency you plan on working
JE>(ie: 80m)
JE>
JE>|-----------------------| |------------------------|
JE>                        | |
JE>                        | |  <--Feedline
JE>                        | |
JE>                     ___|_|___
JE>
JE>
JE>|-----------------------| |------------------------|
JE>         |              | |                 |
JE>                        | |   <--Feedline
JE>                        | |
JE>                     ___|_|___
JE>
JE>
JE>Above, the same 80m dipole with 40m 'tassles' installed.
JE>
JE>A 'tassle' is just a chunk of wire around 4 to 6" in length, soldered
JE>onto
JE>the existing dipole, at the distance from the feedpoint calculated for
JE>40m,
JE>to allow for resonation at 40m.
JE>
JE>The result is a dual-band HF antenna that will not only work on 75/80,
JE>but
JE>40/15m as well.  (15m being the third harmonic of 7MHz)
JE>
JE>Don't see why this won't work for a 40/20m situation, either.
JE>
JE>Pro's: a substantial savings on the amount of wire used for the dipole -
JE>only one coax run needed, if setup right no tuner/balun needed.
JE>
JE>Am interested in hearing from anyone why they think this will/will not
JE>work.
JE>
I thought traps were required, not just 4 to 6 inches of wire.  Interesting
idea, but I've never tried it.  The only thing I've done is 80 and 40 meter
dipoles fed with a single coax.  I've tried adding 20 meters, but I've never
been able to get it to work.  Hopefully, this will be the summer I get some
of my HF antennas back up.
James Aeschliman               KD7MK
Black Diamond, Washington      bb840@scn.org
                                         
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