[MRCA] remote antenna conduit?

[B. Smith]

Why not construct a wire  doublet antenna with as much wire as possible 
on each end and zig zag it through the trees. Don't worry about keeping 
the zig and zags equal. Don't worry about antenna formulas,your goal is 
an all band antenna.  If you can get close to 60-70 feet for each leg-  
great. If you can only do 30 or 40 feet try that. The more wire the 
better and you will actually have gain on the higher bands.  And no 
radials. Use  open wire line to feed the center and go to a balun inside 
your water proof box in the woods. Feed the balun with 50 ohm coax to 
your shack and use your tuner inside the shack for your conjugate 
match.  If you are going to install conduit then put a couple of extra 
wires inside to feed a simple(diode, choke, meter) remote field strength 
meter. This way you can confirm maximum field strength with your tuning.

Highly recommended reading:
http://www.worldradiomagazine.com/old_wro/products/books/easy_way.html

Z



On 9/8/2013 9:29 PM, W2HX wrote:
>
> Hello all,
>
> As part of building a new shack, I am taking this opportunity to run 
> some conduit from the shack out to the backyard for a vertical antenna 
> hidden amongst the trees.  In addition to coax, I'll need to run a 
> coupler control cable. I will either run my Mackay tuner out there or 
> my sunair 1KW tuner out there. Both of these tuners have an existing 
> cable with the circular MS-style connectors on the ends.
>
> Here's the question. When you guys run antenna cables out to your 
> antennas, what size conduit do you use? I ask because the antenna 
> coupler connectors are something like 2" in diameter! So I would 
> imagine I would need a 3" diameter conduit which isn't cheap (I am 
> thinking of using flexible PVC).
>
> OR: Do you guys run the cable first, then bring the soldering iron up 
> to the antenna site and solder on the connector there? A lot of work 
> to do in an uncontrolled environment but would allow a 2" conduit to 
> be installed since the connector doesn't need to be fished through it 
> (it would be soldered on after the cable emerges).
>
> What do you guys do?
>
> One other possible idea.  Take the existing cable with connectors on 
> both ends, and cut off say 3 feet from the antenna end. Then I have 
> one long cable with no connector that will end near the antenna. I 
> could then use a weather proof box with a barrier strip inside and 
> connect each of the wires in the control cable to this barrier strip. 
> Then take the 3 foot piece of cable with the other connector and again 
> attached the wires from the cut side to this same barrier strip.
>
> Thoughts?
>
> 73 Eugene W2HX
>
>
>
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