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GEN 2 (2017-2020) Ford F-150 Raptor Forums
Ford Raptor Audio/Video/Electronics Forum [GEN 2]
My Ham Radio Install
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<blockquote data-quote="OriginalToken" data-source="post: 1427824" data-attributes="member: 27465"><p>I have never used the third brake light to mount anything heavier than a short VHF antenna (on other trucks, not the Raptor) , I did end up bending one such mount and damaging the light (drove under a tree limb). So what follows is more of a guess, in regards to an HF antenna mounted there, than anything else.</p><p></p><p>I think i would be less worried about the wind loading and more concerned with the moment of inertia, particularly if you will be off road. As the vehicle rocks and rolls off-road that can whip the antenna around a good bit, and since an HF antenna is typically both longer and heavier than an VHF or UHF antenna the forces trying to bend the mount will be greater.</p><p></p><p>The other thing to consider is your total height. Adding an antenna that is 6+ feet tall (about the shortest all band HF antennas out there) with the mount and truck height you can easily end up with something 12+ feet up, and many HF antennas will push this to 13 or 14 feet. That can be an inconvenient height. That is one of two factors that drove me to mount the HF antenna at bed rail level. The other is that I can reach the whip of the HF antenna from the ground and easily remove it if needed.</p><p></p><p>T!</p></blockquote><p></p>
[QUOTE="OriginalToken, post: 1427824, member: 27465"] I have never used the third brake light to mount anything heavier than a short VHF antenna (on other trucks, not the Raptor) , I did end up bending one such mount and damaging the light (drove under a tree limb). So what follows is more of a guess, in regards to an HF antenna mounted there, than anything else. I think i would be less worried about the wind loading and more concerned with the moment of inertia, particularly if you will be off road. As the vehicle rocks and rolls off-road that can whip the antenna around a good bit, and since an HF antenna is typically both longer and heavier than an VHF or UHF antenna the forces trying to bend the mount will be greater. The other thing to consider is your total height. Adding an antenna that is 6+ feet tall (about the shortest all band HF antennas out there) with the mount and truck height you can easily end up with something 12+ feet up, and many HF antennas will push this to 13 or 14 feet. That can be an inconvenient height. That is one of two factors that drove me to mount the HF antenna at bed rail level. The other is that I can reach the whip of the HF antenna from the ground and easily remove it if needed. T! [/QUOTE]
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GEN 2 (2017-2020) Ford F-150 Raptor Forums
Ford Raptor Audio/Video/Electronics Forum [GEN 2]
My Ham Radio Install
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