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#1
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Mikey wrote:
Jeremy, is your RV skinned with fiberflas or sheet metal? Obviously, you're going to have more problems with sheet metal. Also, you said you had the antenna installed. Maybe you need to go behind the installers, and beef up the grounding system? Screwdrivers also give you a few more options. You can take the whole antenna and mount it inside a PVC tube on the roof of the RV, and run it horizontally. You can also run the motorized coil inside, and use it to feed a separately-mounted whip (only a short distance away). In either case, you still need to beef up the ground systems. 73, Mike KI6PR El Rancho R.F., CA The RV is fiberglass with a metal frame. I hadn't thought about running it totally horizontally on the roof inside of a piece of PVC, that could work. But then the antenna is still right next to a fiberglass surface, just about 10 feet higher in the air. As far as the ground goes, I did the installing and it is grounded to the Metal frame underneath the RV, which runs the length of the RV with big metal supports.. etc. I'm not sure i understand how a seperately mounted whip would work, the idea sounds interesting but I can't picture it. -- Registered Linux User #346565 |
#2
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Jeremy Salch wrote:
I'm not sure i understand how a seperately mounted whip would work, the idea sounds interesting but I can't picture it. Try this idea. Run the base of the antenna vertically up about three feet. From that point, run the screwdriver coil horizontally. Then from the other end of the screwdriver, run a non-destructable whip as high as possible. It would look something like this: | | | whip | +---screwdriver coil---+ | X 3' | Base non-conductive support _________|______________________X_____ Top of RV -- 73, Cecil http://www.qsl.net/w5dxp -----= Posted via Newsfeeds.Com, Uncensored Usenet News =----- http://www.newsfeeds.com - The #1 Newsgroup Service in the World! -----== Over 100,000 Newsgroups - 19 Different Servers! =----- |
#3
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Cecil Moore wrote:
Jeremy Salch wrote: I'm not sure i understand how a seperately mounted whip would work, the idea sounds interesting but I can't picture it. Try this idea. Run the base of the antenna vertically up about three feet. From that point, run the screwdriver coil horizontally. Then from the other end of the screwdriver, run a non-destructable whip as high as possible. It would look something like this: | | | whip | +---screwdriver coil---+ | X 3' | Base non-conductive support _________|______________________X_____ Top of RV Ok 3 feet would be a bit difficult... this RV is a 1990 Airex by Rexhall.. and it is 14ish feet tall. so it is about as tall as it is safe to go with anything that can't take a beating if it might need to. but the basic idea is to have the coil horisontaly mounted.. and a short wire or some sort to the mount that the whip is on if i understand it, that makes sense. the roof looks kinda like the following sketch there is a rail around the back of the roof and then the ladder, which the two are connected. then there is the ac unit in the middle in the back ------------------------------------ ------- | [] | |= -- ladder [AC]| | [] | | ------- | ------------------------------------ -- Registered Linux User #346565 |
#4
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Jeremy Salch wrote:
Ok 3 feet would be a bit difficult... this RV is a 1990 Airex by Rexhall.. and it is 14ish feet tall. Great goobs of goose greese, that's a tall RV. Are you sure it's not an 18-wheeler? :-) Any chance of mounting your antenna on the front bumper? Do you have a hood? Some hams use hamsticks on a mag mount on the hood. -- 73, Cecil http://www.qsl.net/w5dxp -----= Posted via Newsfeeds.Com, Uncensored Usenet News =----- http://www.newsfeeds.com - The #1 Newsgroup Service in the World! -----== Over 100,000 Newsgroups - 19 Different Servers! =----- |
#5
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Cecil Moore wrote:
Haha well the entire thing is fiberglass.. and there is no bumper to speak of... its a difficult job to mount anything to this guy Jeremy Salch wrote: Ok 3 feet would be a bit difficult... this RV is a 1990 Airex by Rexhall.. and it is 14ish feet tall. Great goobs of goose greese, that's a tall RV. Are you sure it's not an 18-wheeler? :-) Any chance of mounting your antenna on the front bumper? Do you have a hood? Some hams use hamsticks on a mag mount on the hood. -- Registered Linux User #346565 |
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