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Discussion in 'CB Antennas' started by BIONIC_TEXAN88, Aug 4, 2005.
If you want to go vertical, there are a lot of other things to take into consideration. Tuning will NOT be the same! Most people think you can just flip it to vertical, but that is not true.
You should try and get it up at least 10' above the rooof if possible, that is if the roof is "composition", if it is metal, then that's not going to work very good for you.
Horizontal yagi's don't like them metal roof's very well.
A horizontal antenna will be useless for local communications. It will work, but you will have 20db of isolation from the stations running vertical. Also, the distance this antenna is above ground will change your take off angle. If it is too low, you will not be a happy camper.
Take heed to the comments about the metal roofs! They are right!
My personal opinion, setting up this antenna the way you have described is a total waste of your time and money.
Horizontal my good man. If you had a beam that went back and forth between horizontal and vertical, like the Moonraker IV, you would see that some times there is an advantage of one over another.
If you only have the one option, always go horizontal for DX.
Don't waste your time with the 55 gallon drum. Sink a foot or two into the ground to stop the bottom of the mast from moving and bracket it to the side of the house. Use a rafter beam coming from inside the house to secure the mast to! Most people think the facia board is secured good enough. This is NOT true! Only a couple of nails hold those in place! I would even go as far as to support the rafter you tie off to, INSIDE the roof of the house.
If you go 60', make sure you use guy wires to support the pole.
Bionic Texan, I was in the same situation a few years ago and the solution that I came up with was to mount a vertical 5/8 and a horizontal 3 element yagi on the same mast. Running two feedlines down to the radio with a coaxial swich so I can change from vertical to horizontal with the flick of a switch. As Mater chief says horizontal is best for skip and this is true 95% of the time but occasionally the reverse happens. Sometimes in skip conditions polarity gets reversed and a signal transmitted horizontally gets recieved better vertically so it is nice to be able to change over without having to go outside.