my stock avanti sigma4 with double skinned lower section stood up in 110mph gusts until a guy snapped and the top 43ft of a 73ft mast came down, its seen 90+mph winds plenty of times over the years,
they are one of the strongest aluminum antennas once you sort out the bottom section,
the gm works great in our tests, we just need 100mph winds to see if they are strong.
they are one of the strongest aluminum antennas once you sort out the bottom section,
the gm works great in our tests, we just need 100mph winds to see if they are strong.