Sbsyncro Posted May 26, 2021 Report Share Posted May 26, 2021 So most people with Jeeps and trucks are not installing their NMO antennae in a "through the roof" mount and are instead using external brackets. NMO mounts such as the "Midland 6 Meter Antenna Cable with NMO Connector" are obviously designed to be water proof (with an o-ring seal) when installed on a flat panel where the underside is protected from weather by the panel that it is mounted to and the o-ring on the top side of the panel. In a bracket type mount, the underside of the NMO mount is completely exposed to the elements. Is this a problem? Should one somehow protect it from the elements? Most installations I see just leave it exposed, so I wonder if the o-ring is merely to seal the roof panel from leaking and not to necessarily protect the back side of the antenna mount. Duck218 1 Quote Link to comment Share on other sites More sharing options...
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