Martyn668
27th Aug 2007, 11:37
Hello there - I bought a Super Stud Mount from Thunderpole last week.
Since it's bank holiday I can't phone them, and I can't seem to register for their forum, so I've come here.
Just need to know how to mount it. I've got a bracket welded to a roll cage on my Defender, with a 3/8" hole in it to take the Super Stud Mount. This will therefore provide a good earth (groundplane?) if required. I also bought a Thunderpole Orbitor Aerial and 3m of cable. The question is regarding the mount.
The metal stud with copper/brass insert which goes through the 3/8" hole appears to have a rubber inner which sits slightly proud of the nut. This would prevent the outer touching the mounting bracket of a perfectly dimensioned hole, UNLESS I use the included washer underneath the bracket. However, I suspect the included washer goes above the bracket, because the large rubber washer is moulded to fit the metal washer. However, if the metal washer goes above the bracket, the whole assembly is insulated from thh roll cage bracket by virtue of the fact that the rubber washer is moulded to insulate it.
So do I need to make a good earth? Between the roll cage and what? Reading some of the other posts on their forum, they talk about the rubber being a conductor. Is this the case? If so, I guess it's special rubber, charged with metal particles. In which case a good earth between the metal washer and the roll cage would seem to do it.
Thanks in advance for your help. Why don't they put instructions with these things for beginners like me?
Thanks
Martyn
Since it's bank holiday I can't phone them, and I can't seem to register for their forum, so I've come here.
Just need to know how to mount it. I've got a bracket welded to a roll cage on my Defender, with a 3/8" hole in it to take the Super Stud Mount. This will therefore provide a good earth (groundplane?) if required. I also bought a Thunderpole Orbitor Aerial and 3m of cable. The question is regarding the mount.
The metal stud with copper/brass insert which goes through the 3/8" hole appears to have a rubber inner which sits slightly proud of the nut. This would prevent the outer touching the mounting bracket of a perfectly dimensioned hole, UNLESS I use the included washer underneath the bracket. However, I suspect the included washer goes above the bracket, because the large rubber washer is moulded to fit the metal washer. However, if the metal washer goes above the bracket, the whole assembly is insulated from thh roll cage bracket by virtue of the fact that the rubber washer is moulded to insulate it.
So do I need to make a good earth? Between the roll cage and what? Reading some of the other posts on their forum, they talk about the rubber being a conductor. Is this the case? If so, I guess it's special rubber, charged with metal particles. In which case a good earth between the metal washer and the roll cage would seem to do it.
Thanks in advance for your help. Why don't they put instructions with these things for beginners like me?
Thanks
Martyn