RadioBanter - 4:1 balun question

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PDRUNEN

January 23rd 04 03:54 AM

4:1 balun question

Hi Group,

Put up a off-center dipole, 80 feet on one side and 40 feet on the other side
and use a 4:1 to step down the impedance.

How does a 4:1 balun change a complex impedance? Is the j part of the antenna
also divided by 4? for example, 200+j200 will step down to 50+j50 ?

de KJ4UO

Reg Edwards

January 23rd 04 10:39 AM

Just do what the arithmetic tells you to do.

Z/4 = (R+jX)/4 = R/4 + jX/4

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