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Written by RadioReference.com LLC
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Thursday, 25 February 2010 |
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Here is some info for a Tilt-Over mast that I am constructing and hopefully give some IDEAS for people to build for their scanner antennas. Please remember that this is only to give people ideas and is not an engineered structure. Remember that you can be KILLED if you hit any power lines with this mast, so read here I wanted something that will be easy to lower and raise and mostly be very safe to work on. When building this mast you should get a good-quality winch to raise and lower the mast. I bought a motorized winch (2000 lbs.) that has a brake so if you let go of the buttons when raising and lowering the mast, it stops right away. I bought it on sale for $59.00. The hand winch I wanted was $50.00, so I went with the motorized since it was only $9.00 more. People that are thinking of building this would need a welder. If you don't have one you can get a welding shop to weld up the base for you. I got the idea from a old Fire Hall that had a mast to hold there flags up. From there I had this picture in my head for my scanner antennas. I started thinking about materials to build this monster mast and started to design it differently. The Fire Dept had C-channel for the base coming from the concrete that is in the ground. I needed some round pipe for the mast so why not have the round pipe for the base as well. I went to a plumbing supplier and looked for a pretty solid pipe, and the store employee directed me to 2" Schedule 40 pipe, which comes in 21 foot lengths. I wanted more height then that, so I also purchased a length of 1 1/2" Schedule 40 pipe to fit inside the 2" pipe. So I bought another 2" schedule 40 pipe 21 foot long for the concrete base. So total material so far is: 2 pcs 21'x2" schedule 40 pipe 1 pcs 21'x1 1/2" schedule 40. Top mast piece is cut down to 18' long for the top mast.Three feet of the top mast will be inserted into the bottom 2". {mos_fb_discuss:no_discuss} |
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Last Updated ( Thursday, 25 February 2010 )
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18/02/2010 30/11/1999 N5SHI 
