I plan on building two antennas and want to know if I can put them both on one mast. The antennas are a simple 2mtr ground plane, like the one seen at http://www.hamuniverse.com/2metergp.html
, for local FM repeater work and a 6mtr square halo like http://www.qsl.net/k4pwo/sloop.htm
My plan is to mount them both to the same mast. And mount the mast on the roof of the house. I would set the base of the mast into a mount similar to the one shown at the bottom of http://www.bwantennas.com/pro/mast.pro.htm#mk114-rm
. That mount would set on an 18" x 18" steel plate to distribute the weight better. (All then anchored to the roof.) Then I would run guy lines to keep the mast upright.
My main questions are these...
Can the 6mtr square halo be positioned at mid-mast or should it be at the top? If it can sit mid-mast then I can put the 2mtr antenna at the top. Also, how close can the halo be below the 2mtr antenna? If the halo has to go at the top, then I will probably need a separate mast for each antenna.
I am thinking of using a 20' mast. (I am not sure a 10' mast will be long enough for everything) Is there going to be room for both antennas and still get my guy lines high enough up the mast for good support? Can I attach my guy lines above the halo and below the ground plane? I would prefer to use wire guys rather than synthetic so they will be more permanent.
Which would be better for the mast? A couple of sections of Radio Shack type mast? I have seen some people use a 20' (I think) piece of chain-link fence rail for a mast. Or maybe one long piece of electrical conduit? Also, how many guy lines? Three or four?
I'm trying to keep the price down as much as I can and still put up a good stable mount. ANY suggestions or ideas would be appreciated. Also, there are not really any tall trees around other than a couple palm trees. And the house is one of the few two story houses in the neighborhood so I have some height advantage there as well. It's about 25' at the peak and since the terrain is pretty flat here I can see a LONG ways from my roof.
Sorry about the long post, but I was trying to be clear about the details.