login about faq

Will metal gutters work as an antenna if I use an antenna tuner with them, or am I better off throwing a spool of wire out my second floor window?

asked Dec 14 '09 at 02:55

KB1QHX's gravatar image

KB1QHX
256


Depending on the length of the gutters, you might be able to use them as a perfectly viable antenna along with a tuner with a wide matching capability. That said, be aware that the tuner is only adjusting what the radio "sees". It won't make a bad antenna work any better.

I've loaded up all kinds of stuff with my MFJ 949E, including my 17 foot Grumman canoe (aluminum) and the shell of my 13 foot Scotty camper. Made a 20m contact on the canoe, but not the camper.

A local operator does a great presentation on loading up weird things. He's made a dipole from watermelons (and made a contact on the local repeater with it), and two station wagons.

answered Dec 14 '09 at 21:05

KV3SPA's gravatar image

KV3SPA
191

I never expected this answer... Especially using a canoe... HAHA! Now I want to experiment...Thanks for the great answer... Time to pull out some meters and safety goggles!

(Dec 14 '09 at 21:51) W4NKR W4NKR's gravatar image

Should work, but several possible issues. The gutter needs to be floating from ground, or grounded far away. Check where downspouts are. Another problem is the roof flashing (drip edge, etc.), it might be connected with nail holes even though it's painted, or coupled capacitively, and it might go places the gutter doesn't. The issue I would be most worried about is intermittent connections - gutter connections are not made to be reliable electrically. Might be different antenna at different times/temperatures, maybe even noisy.

Of course, it's fun to just hook up to something metal and see how it works. You might get lucky. Or you could go to the trouble of isolating two sections to make a nice dipole, keeping it away from the roof drip edge and fascia aluminum, etc. Probably a real pain to do that on most houses, but maybe easy in some cases. Might work better than throwing a wire out.

-Dan, KW2T

answered Dec 15 '09 at 04:58

KW2T's gravatar image

KW2T
2162

You could possibly make a dipole out of the gutters if you put plastic sections in the middle and at the appropriate lengths. Also make sure that the sections of the gutter that you will be using have no corners on them. But you definitely will need that tuner.

answered Dec 14 '09 at 21:36

KJ6CLX's gravatar image

KJ6CLX
1435

I've been told that an operator here did in fact put in the plastic isolator and used his gutters as an antenna. Wonder if you could get fancy and rig up a folded dipole or a rhombic....

answered Dec 15 '09 at 00:18

AJ4UQ's gravatar image

AJ4UQ
1163

Your answer
toggle preview

Follow this question

By Email:

Once you sign in you will be able to subscribe for any updates here

By RSS:

Answers

Answers and Comments

Tags:

×26

Asked: Dec 14 '09 at 02:55

Seen: 1,045 times

Last updated: Dec 15 '09 at 04:58

©2010 elmershack.com | about | faq | privacy | support | contact

powered by OSQA