Mounting VHF antenna on roof

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ckm554

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Hey, I have a Comet GP1 antenna, a 4ft long fiberglass antenna similar to the Diamond X-30, that I want to mount on the eave of my roof. I am considering either an eave mounting kit or simply two wall mounts on the fascia board and a ~5 foot mast similar to this "http://socalfreenet.org/files/images//8-377_0.jpg"

Is one method sturdier than the other or are they about the same?

Chris
 

celsasser

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If you are considering an eave mounting kit similar to the one shown in this pic vs the 2 wall brackets shown in your post, then I'd be inclined to go with the eve mounting kit. The separation between the top mount and the bottom mount on the eave mounting kit is larger, so would tend to spread the lateral stress across a much larger area of the mounting surface. On the downside, you will loose about 2 ft in the length of your mast pipe, when compared to the 2 wall brackets, because of this.

http://www.usbcable.com/82-6377.gif

Just my choice, but I've been known to overkill.... :roll:
 
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n5ims

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Be sure to have the mounts secured solidly into the support structure (aka studs) and not just into the siding. Also, since you're planning to only use a 5' mast, you may want to go with a 10' mast and install the mounts further apart, which will give you a much stronger mounting. Two mounts a foot apart can easily be ripped off in very strong winds (with a fairly large antenna) while the same mounts 4 or 5 feet apart can hold up to a much stronger wind load without pulling out due to the leverage.
 
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