[Antennas] Re: balun ratio
Roy
royanjoy at ncn.net
Sat Jun 23 12:15:49 EDT 2007
About,
"I just found and old balun in a shack's closet. It's marks are erased.
How
do I know its in to out ratio?"
Thanks.
Dave, W4DN
(EX-KP4AM)
Dave,
Hook its output side to a 50 ohm resistor load made of series/parallel junk
resistors. Run just enough power to see if your swr reads 1 to 1. If it does
(and this is likely because more baluns are 1 to 1), then it is a 1 : 1
balun. If your swr reads about 4 to 1, it's a 4 : 1 step-up.
73, Roy K6XK
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