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 Ladder line ?? 
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Post Ladder line ??
Hi
If i am putting up a wire with a ladder line how important is it the the ladder line is straight down ? problem is the ladder line is 30ft but i can only get it on the wall about 18ft high ??

tonynw


Sat Dec 14, 2013 4:57 pm
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 Ladder line ?? 
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Get as much as you can vertical, dropping away from the feedpoint. You can then go horizontal if you need to, but try to keep it several inches away from anything conductive or lossy. Don't lay it on the ground!

Steve G3TXQ


Sat Dec 14, 2013 5:08 pm
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 Ladder line ?? 
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on the vertical drop it will have to go over some tv coax about 10ft from the top of the ladder.

tonynw


Sat Dec 14, 2013 5:15 pm
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 Ladder line ?? 
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I would not let it come anywhere near to the coaxial cable as the RF will not see PVC coating and only see the actual copper braid, my doublet was fed over the coaxial cables of my Hexbeam and it caused no end of RFI in the shack as it coupled and detuned with the coaxial cables and this was just at the entrance to the shack.

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Sat Dec 14, 2013 5:59 pm
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 Ladder line ?? 
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if i avoid the tv aerial coax i have no choice it is going to have to cross over the lead from a sat dish.

tonynw


Sat Dec 14, 2013 7:16 pm
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 Ladder line ?? 
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Hmmm will have to await the guru G3TXQ and see what he can suggest, I am only going off past experiences when I had issues with mine.

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John G Ritson CMH


Sat Dec 14, 2013 7:20 pm
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 Ladder line ?? 
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A simple "right angle" crossing with reasonable separation should minimise problems. Running the coax and the ladderline in parallel, with a small separation, is almost sure to give you problems.

What separation can you achieve?

Steve G3TXQ


Sat Dec 14, 2013 7:25 pm
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 Ladder line ?? 
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You could always do what I have done . My satellite cable runs horizontally pinned against my brickwork across the path of my vertical feeder ,the way the antenna is mounted means the feeder runs vertically pretty close to the brickwork . I think I got over any possible adverse effects by using a wooden standoff and now the feeder runs across the cable but with about 10 inch clearance .. The feeder is pinned to the standoff via one of the spacers which was made longer than the rest ..

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Voice is for CBers, amateur radio operators, the average citizen, and the military. In other words, voice is for everyone with a mouth. CW is for those who choose this newer mode of communication. Newer? Why yes. Voice has been around for a million years.


Sat Dec 14, 2013 7:33 pm
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 Ladder line ?? 
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i can't avoid crossing over 1 sat cable or 1 tv coax cable but i have some 10" square ally sheet i can cover one of them with when i cross over ? or just make a bracket to bring the lead away from the wall before it crosses over.

tonynw


Sat Dec 14, 2013 7:45 pm
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 Ladder line ?? 
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I can't really picture what you are trying to do :scratch:

Are you trying to run the ladderline along a wall? Assuming the ladderline is stood off the wall, wont it be separated from the coax where it crosses it?

Steve G3TXQ


Sat Dec 14, 2013 7:55 pm
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 Ladder line ?? 
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The only other option i have is to use one of these mounted on the patio instead of mounting a fixed vertical on a pole

http://www.ebay.co.uk/itm/prowhip-prtab ... 19e5b7873e


Sat Dec 14, 2013 7:56 pm
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 Ladder line ?? 
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i was going to mount a g5rv on the wall and bring the legs out in a v and run the ladder down the wall.

tony


Sat Dec 14, 2013 7:58 pm
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 Ladder line ?? 
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You need to stand the ladderline away from the wall by a few inches using some insulated stand-offs.

Steve G3TXQ


Sat Dec 14, 2013 8:02 pm
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 Ladder line ?? 
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the easy option for me would be one of these but are they any good ???

http://www.ebay.co.uk/itm/prowhip-prtab ... 19e5b7873e


Sat Dec 14, 2013 8:06 pm
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 Ladder line ?? 
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Post Re: Ladder line ??
My ladderline is two black wires running down either side of a black plastic drainpipe secured with black cable-ties.

If you can find it, you can object to it :)

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Sat Dec 14, 2013 8:09 pm
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