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Author Topic: 75ft vertical and outrigger wires.  (Read 755 times)
ZL1BBW
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Posts: 370




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« on: April 10, 2013, 03:35:12 PM »

I am in the final process of finishing off my new vertical for the winter.  It will be 70 - 75ft high.  I am going to put 4 (could be more)  wires around the tube with an outrigger at 25-30ft to give it more strength.  Now the question...  which should be the radiator, the tube or the outrigger wires, or both.  Was thinking of connecting the wires to the tube at the top, and then that would allow me to feed it like a half folded dipole against a ground mat, or should I bond the whole lot together. and feed it as a fat vertical against ground mat.   Any thoughts would be much appreciated.
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ex MN Radio Officer, Portishead Radio GKA, BT Radio Amateur Morse Tester.  Licensed as G3YCP ZL1DAB, now taken over my father (sk) call as ZL1BBW.
WB6BYU
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Posts: 13124




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« Reply #1 on: April 10, 2013, 04:17:04 PM »

Typically I'd use the main tube as the radiator, as I normally couldn't guarantee
the electrical contacts in the outrigger wires once you include the turnbuckles,
thimbles, hooks, etc.  That's not to say that you can't use the rigging as a fat
or folded vertical, as long as you ensure good electrical connections at all
points.
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KC4MOP
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Posts: 731




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« Reply #2 on: April 10, 2013, 04:53:32 PM »

That's a serious antenna. Can you post some pics when you reach the finish line?
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ZL1BBW
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Posts: 370




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« Reply #3 on: April 10, 2013, 06:08:23 PM »

That's a serious antenna. Can you post some pics when you reach the finish line?
  Will do for sure, it all started when I bought a load of 3" ali pipe as special offer, then what do I do with it.  :-)
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ex MN Radio Officer, Portishead Radio GKA, BT Radio Amateur Morse Tester.  Licensed as G3YCP ZL1DAB, now taken over my father (sk) call as ZL1BBW.
W5LZ
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Posts: 477




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« Reply #4 on: April 11, 2013, 05:40:03 AM »

All of the suggested forms have possibilities depending on your bands of interest.  And then, if you wanted to, using those guys or outriggers as 'sloppers' with the proper switching would be another possibility.  I'm almost glad it's you and not me!  I wouldn't know which/what to make either.
 - Paul
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ZL1BBW
Member

Posts: 370




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« Reply #5 on: April 11, 2013, 08:21:41 AM »

Only really two bands 160 and 80, intend doing something different for 40.  Am going the fat dipole way, so that will a) lower the resonant freq and b) make it broader to tune.  Thanks
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ex MN Radio Officer, Portishead Radio GKA, BT Radio Amateur Morse Tester.  Licensed as G3YCP ZL1DAB, now taken over my father (sk) call as ZL1BBW.
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