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Author Topic: What Balun  (Read 577 times)
KB3FFH
Member

Posts: 162




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« on: December 19, 2011, 11:23:30 AM »

Can I use a 4 to 1 current balun for a Carolina Windom up 40 feet.
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KG6YV
Member

Posts: 512




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« Reply #1 on: December 19, 2011, 11:41:03 AM »

Not if you have a RadioWorks Carolina Windom.  The Carolina windom with the 22ft. radiating coax needs to have a 4:1 Voltage balun.  A current balun will choke off the RF at the balun and you won't get any radiation from the vertical section.
Any 4:1 voltage balun will work.  In fact I just ordered a 4:1 voltage balun from Balun Designs to replace the 15 year old
balun on my Carolina Windom. 

Greg
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WB6BYU
Member

Posts: 13280




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« Reply #2 on: December 19, 2011, 12:03:14 PM »

Yes, you can.  The vertical section doesn't make much difference in the radiation
pattern anyway, and it will be a big help in reducing common mode currents on the
feedline (which the choke further down the feedline doesn't do a very good job of
suppressing.)

It may change the resonant frequency on some bands, but you're probably using
a tuner anyway.
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