[Elecraft] Multi-band (Fan) Dipoles

Niel Skousen nskousen at talisman-intl.com
Sun Apr 17 18:43:31 EDT 2011


On a similar vein...   I've seen in the past an antenna that used to be a common 'emergency' antenna.  I cant remember the name or dimensions, so hopefully someone can understand my description and point me to additional information.

The mult-band antenna is similar to a 3 wire fan dipole, but the elements are generally paralleled (not 'fanned out).
A dumb ascii art diagram follows with the feedpoint (a), only half of the symmetrical antenna is shown
- The middle element is approximately the length of the dipole,  
- one of the outside elements is only about 70% of the full length, 
- the last and longest element is  folded around the end of the middle wire
  with a gap (b) between the end of the short wire and the long wire.
  (generally the guy wire is attached at the fold point (c)

dumb ascii art ....
         ---------------------.  (b)  ------ 
       /                                               \
      /                                                  \
(a) -------------------------------------   |--(c) ---- (guy)
      \                                                 /
        \___________________/


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