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Effect of nearby metal roof on HF and VHF antenna

Sep 13th, 20:06

KA0GWU

Joined: Feb 22nd 2019, 19:41
Total Topics: 0
Total Posts: 0
Greetings! I have an extremely small backyard and have two antennas installed a no name HF multi band and a MFJ 6M/2M two segment antenna. Right now they are located about 8 ft from a wooden gazebo with a metal roof. I am about to replace the HF with a Hustler 6-BTV and am wondering if I should move it away from the gazebo. The basic question is: how much am I losing in performance with the antenna locations right now and is it worth the effort to move the HF or possibly both thr HF and the VHF. Thanks!
Sep 13th, 20:34

W1VT

Super Moderator

Joined: Apr 4th 1998, 00:00
Total Topics: 0
Total Posts: 0
You may want to figure some way of using the metal roof as the ground plane for the Hustler vertical antenna.

Zak W1VT
ARRL Senior Lab Engineer
Sep 13th, 20:44

KA0GWU

Joined: Feb 22nd 2019, 19:41
Total Topics: 0
Total Posts: 0
Unfortunately I cannot mount the antenna to the roof as it is not strong enough to hold the antenna nor will my HOA allow it (I am skirting the rules as it is
Sep 14th, 14:57

W1VT

Super Moderator

Joined: Apr 4th 1998, 00:00
Total Topics: 0
Total Posts: 0
The most practical way to see the difference is with on the air testing. Pay particular attention to the noise level on the different bands. Hamspots.net will collect FT8 signal reports for you. The Reverse Beacon Network can be used to collect CW signal reports.

Zak W1VT
ARRL Senior Lab Engineer

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