-=> On 07-08-97  13:54, Jeff Edmonson said to Rob Dennis,<=-
-=>"About J-Pole antenna...,"<=-
 
Hi, Jeff;
 
[snip]
 
 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,
 JE> soldered onto the  existing dipole, at the distance from the
 JE> feedpoint calculated for 40m, to  allow for resonation at 40m.
 
I haven't heard of using "tassles" for multibanding an antenna.  The
nearest I have seen is something that is commonly used:
 
    |------------------------| |------------------------|
           -----------------/| |\----------------
                             | |
                             | |
                             | | <--Feedline
                             | |
 
If you only need 2 elements, you can use standard 300 ohm twinlead for
such an antenna.  If you need more, you could use 4-conductor rotor
wire for a 4-element version.  If you are using 4-conductor rotor cable
and only need 3 elements, I suggest carefully peeling off the unused
conductor.
 
Of course, there is nothing stopping you from experimenting with your
tassle idea... hey, it might work great!  After all, isn't that what
amateur radio is all about?
 
 JE> Am interested in hearing from anyone why they think this will/will not
 JE> work. 
 
Personally, I think it may be disrupted by the resonance of the longer
arm, but I could easily be wrong.  Give it a try and let us know!
 
73 de KB9QPM (Ex WD0BZK)
   Ivy
 
 
 
... Antenna... Isn't that Uncle Harry's wife?
... Do it near resonance!
... When the band is open you can work the world on a piece of wet string!
 
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           ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ> Ivy Iverson, KB9QPM <ÄÄÄÄÄÄÄÄÄÄÄÄ¿
           ÀÄ> Ivy's WALL BBS - USA Co-Moderator, INTBBS_WK <ÄÙ
 
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