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Re: [VHFcontesting] Vertical masts running thru horizontal yagis

To: "Mark Spencer" <mark@alignedsolutions.com>, <vhfcontesting@contesting.com>
Subject: Re: [VHFcontesting] Vertical masts running thru horizontal yagis
From: "Mike Wechsler" <n4ofar@charter.net>
Reply-to: Mike Wechsler <n4ofar@charter.net>
Date: Sat, 27 Jun 2015 07:22:14 -0400
List-post: <vhfcontesting@contesting.com">mailto:vhfcontesting@contesting.com>
Mark,
Lots of rovers take a non metallic mast and run it horizontal and put three or four microwave loop antennas. I ran my 432 and 222 antennas on a separate Horizontal fiberglass mast. Look at some photos of Rover configurations to get some ideas. Hope this helps with your rover efforts.

Mike Wechsler      N4OFA


-----Original Message----- From: Mark Spencer
Sent: Friday, June 26, 2015 10:37 PM
To: vhfcontesting@contesting.com
Subject: [VHFcontesting] Vertical masts running thru horizontal yagis

Hi. I'm pondering my likely roving / portable antenna setup for the UHF contest and am thinking of mounting a 432 yagi below a 1296 loop yagi.

Does any one have any practical experience they can share re running a metallic 1.5" to 2" mast (plus another feed line) thru a 432 MHz horizontal yagi. The antenna in question will be the a M2 21 element 432 antenna which would be centre mounted on the mast. The antenna at the top of the stack will be directive systems 55 element 1296 loop yagi.

I'll probably just try this at home before August but thought I would ask for comments first. It seems like a lot of metal to run thru the pattern of the 432 yagi. I'm thinking this is probably not going to work out very well but it would simplify the station set up. In the past I've just run one antenna per mast to avoid having to deal with this and I may end up just running separate masts for 432 and 1296 and forgoing the other bands.

Any comments are welcome.

Regards
Mark S
VE7AFZ


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