Balanced vs Unbalanced (#688)

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Larry, WD8MWS, has a mix between a wooden and metal fence and knows that the metal portion will affect his antenna. He wants to know if he should make his antenna unbalanced or balanced in order to move the center of the dipole from the metal fence?

Edited by Callum Jakeman

Theme music is "Sour Tennessee Red," by John Deley and the 41 Players, courtesy YouTube Music Library.

Twitter: @dcasler

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Thank you. I have run dipoles with and with out 1:1 baluns. The antennas with a 1:1 baluns always preformed better. Your explanation was very informative. Thanks.

Larry-jfjm

Thank you.
I have power lines, chain link fences, lightning rods on top of the house and metal rain gutters - this makes antenna placement a challenge.
Your video was helpful.

glenmartin

Trying to make understanding easier:
When using the polarized electrical paradigm, instead of neutral, use: “neutral carrying conductor”. Emphasize both the black and white wires always carry current. The green or / bare copper conductor “only” carries current when there is a “fault” condition.

ebones

Sir, I have learned so much from you over the years. Thank you so much.

brucejohnson

I have always had a problem with it when people say that the sheld doesn't have current. It must! If it doesn't have signal then why would you connect it to the dipole? Plus what is the return path for the current going out the center?

donaldsmith

I buy antenna cord for my dipole antenna from a well-known hamradio company in norway and it was just as you describe miserable quality it was chia quality at its best. and it cost a lot

qutips

Try it one way for several days, then turn around the polarity. You may find it works better one way than the other.
I’ve never seen a dipole make any difference, but a OCF, can make a big difference.
Just my experience.

dougtaylor

Everything affects everything, the big question is how much. I suspect that the fence won't be too bad, just tune the antenna in place.

KillerSpud

Never understood why in the USA for mains wiring they use black (for hot/live) and white for neutral? Green as earth is pretty universal in all countries. Years ago in the UK we used red and black for live and neutral and green for earth, but around 1970 they adopted the EU mains wiring colour code which is brown (live) blue (neutral) and green with a yellow stripe for ground.
However, I still reckon the UK fused 3 pin plugs are the best (and safest) in the world. Much better than the crappy round Chucko plugs which are used in Europe. Those BTW can be plugged in reversed!

ejmills