• You can now help support WorldwideDX when you shop on Amazon at no additional cost to you! Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs.

CB beam question

NF822WNY

New Member
Aug 4, 2017
39
21
8
Western NY
I was wondering if it were possible to put a beam antenna on a mast. I was looking at the L2 Quad from Lightning Antennas.

http://www.lightningantennas.com/quad-models/l2-quad-bis/

I have read and heard that masts should not be used with beam antennas but this beam is a small 2 element beam weighing 11 lbs with a wind area of 1.8 square feet. I was hoping this may be small enough to use with a mast. I understand that i would have to use guy wires and was thinking a Rohn 50 mast would be suitable. I would also have to use a small tv rotor to move this around.

Has anyone had a set up like this before? is it possible?
 

Attachments

  • L2chica.jpg
    L2chica.jpg
    34.8 KB · Views: 8
  • Like
Reactions: Shadetree Mechanic

When you put guy lines for example 3m below top of the tower, under strong wind all over that point is bending, that means less force on the rotator.
When you guy that right under rotator, all bending force under the wind is on the rotator.
It is tower design basics man.
Mike
 
  • Like
Reactions: tecnicoloco
When you put guy lines for example 3m below top of the tower, under strong wind all over that point is bending, that means less force on the rotator.
When you guy that right under rotator, all bending force under the wind is on the rotator.
It is tower design basics man.
Mike
Tell you what I know first hand. I did it the way you've described when i first set it up. Because you have more unsupported weight/inertia free floating, it will allow the mast to fold. Wasn't pretty; had to take the beam apart and straighten each piece and I also lost four feet off of the top of the mast. Remember, we are talking about a mast here; not a tower. Been there; done that.
 
So after I fixed everything and put it back together, I put the guy ropes at the base of the rotor and every ten feet below it and never had a problem since. Had some pretty severe winds come thru and it didn't even flinch after that. So you are wrong sp5it - sorry . . .
 
Sooooo, just put a rotating ring above the rotor and attach the guys there.
525x525px-LL-92dcfd0c_vbattach7952.gif
 
  • Like
Reactions: NF822WNY

dxChat
Help Users
  • No one is chatting at the moment.
  • dxBot:
    Tucker442 has left the room.
  • @ BJ radionut:
    LIVE 10:00 AM EST :cool:
  • @ Charles Edwards:
    I'm looking for factory settings 1 through 59 for a AT 5555 n2 or AT500 M2 I only wrote down half the values feel like a idiot I need help will be appreciated