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There are three ways I've seen it done. The old way that I don't recommend anymore involves insulating the mast from the antenna hardware. We started with electrical tape, you want to use enough that there is minimal capacitance between the mast and the mounting brackets, so more is better, as long as you can fit the hardware around the electrical tape. Unlike a magnet mount antenna, you want as little capacitive coupling as possible. One person found a rubber sleeve that just fit over the mast, and inside the mounting hardware. It was a tight fit but it worked. I suppose if you have a dense piece of rubber you can wrap that around for the same effect as well. Might be worth looking at some of the flat floor mats used in cars if they still make them, although they might be to thick...

I mentioned above a 1 inch fiberglass rod. You bolt the rod to the mast, and the antenna to the other side of the rod. A two foot rod is generally enough. Depending on where you get them from they can be somewhat expensive. I will generally paint them to help prevent UV from the sun wearing out the rod to quick.

Much more recently, and still being experimented with, we have used one of the half inch diameter high density cookie sheets. We cut it to size, and use clamps to bolt it to both the mast and the antenna with separate but close hardware. So far the two I have seen done this way are holding up well, although I want to give it a little more time before giving it my seal of approval. It is cheaper in general than using a fiberglass rod, and I paint these for the same reason as I paint the fiberglass rods...

The DB

<blockquote data-quote="The DB" data-source="post: 571002" data-attributes="member: 21346">There are three ways I&#039;ve seen it done.&nbsp; The old way that I don&#039;t recommend anymore involves insulating the mast from the antenna hardware.&nbsp; We started with electrical tape, you want to use enough that there is minimal capacitance between the mast and the mounting brackets, so more is better, as long as you can fit the hardware around the electrical tape.&nbsp; Unlike a magnet mount antenna, you want as little capacitive coupling as possible.&nbsp; One person found a rubber sleeve that just fit over the mast, and inside the mounting hardware.&nbsp; It was a tight fit but it worked.&nbsp; I suppose if you have a dense piece of rubber you can wrap that around for the same effect as well.&nbsp; Might be worth looking at some of the flat floor mats used in cars if they still make them, although they might be to thick...I mentioned above a 1 inch fiberglass rod.&nbsp; You bolt the rod to the mast, and the antenna to the other side of the rod.&nbsp; A two foot rod is generally enough.&nbsp; Depending on where you get them from they can be somewhat expensive.&nbsp; I will generally paint them to help prevent UV from the sun wearing out the rod to quick.Much more recently, and still being experimented with, we have used one of the half inch diameter high density cookie sheets.&nbsp; We cut it to size, and use clamps to bolt it to both the mast and the antenna with separate but close hardware.&nbsp; So far the two I have seen done this way are holding up well, although I want to give it a little more time before giving it my seal of approval.&nbsp; It is cheaper in general than using a fiberglass rod, and I paint these for the same reason as I paint the fiberglass rods...<a href="http://hittman.us" target="_blank">The DB</a></blockquote>

[QUOTE="The DB, post: 571002, member: 21346"] There are three ways I've seen it done. The old way that I don't recommend anymore involves insulating the mast from the antenna hardware. We started with electrical tape, you want to use enough that there is minimal capacitance between the mast and the mounting brackets, so more is better, as long as you can fit the hardware around the electrical tape. Unlike a magnet mount antenna, you want as little capacitive coupling as possible. One person found a rubber sleeve that just fit over the mast, and inside the mounting hardware. It was a tight fit but it worked. I suppose if you have a dense piece of rubber you can wrap that around for the same effect as well. Might be worth looking at some of the flat floor mats used in cars if they still make them, although they might be to thick... I mentioned above a 1 inch fiberglass rod. You bolt the rod to the mast, and the antenna to the other side of the rod. A two foot rod is generally enough. Depending on where you get them from they can be somewhat expensive. I will generally paint them to help prevent UV from the sun wearing out the rod to quick. Much more recently, and still being experimented with, we have used one of the half inch diameter high density cookie sheets. We cut it to size, and use clamps to bolt it to both the mast and the antenna with separate but close hardware. So far the two I have seen done this way are holding up well, although I want to give it a little more time before giving it my seal of approval. It is cheaper in general than using a fiberglass rod, and I paint these for the same reason as I paint the fiberglass rods... [URL='http://hittman.us'][COLOR=#000000]The DB[/COLOR][/URL] [/QUOTE]

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