[Antennas] Emergency 80 meter dipole - choke balun
David Ring
n1ea at arrl.net
Sat Sep 13 07:49:38 EDT 2008
I'd replace the choke with a balun. You can use an Amidon Ferrite
FT-240-61. It would be much more efficient at supressing radiation
from the feedline.
They also sell balun kits .
73
DR
On Fri, Sep 12, 2008 at 10:01 PM, Jim Miller <JimMiller at stl-online.net> wrote:
> Quick - Going up tomorrow in some form - (today for those of you who aren't up late) -
>
> How many turns and how large for a 75 meter dipole at average of 35 ft using about 130 ft (not including choke balun) of RG213 and running full power. Yes the feedline will be ON the ground running back mostly right under one leg. Which leg is best???
>
> 8 turns at 8 inches ??? Seems like that sticks in what's left up there but don't remember if that was for 80 or some other band (IF that even matters).
>
> Also - about the wrap, is it better to be pretty as if it is on a form or is scramble wound OK and does it affect the inductance?
>
> Thanks es 73, de Jim KG0KP
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