[MRCA] coax recommendation sought

[Tim]

Hi Eugene - If you haven't already buried the pipe you might consider
laying in a length of bare copper wire alongside (outside) the conduit.  A
"freeby" ground radial trench for your grounding system....

Nice and stealthy - I like it!
Tim
N6CC


On Wed, May 21, 2014 at 11:16 AM, W2HX <w2hx at w2hx.com> wrote:

> Thanks to everyone who responded. I have some very solid leads to follow
> up on.  I should mention that I have two 90 degree elbows in the conduit
> (one going in and one coming out). Here are some pictures:
>
>
>
> Here is the 90 degree bend, it takes about 17 inches to complete the bend,
> I am not sure what that works out to in inches of radius..
>
> http://www.w2hx.com/x/Antenna-related/Vertical/90-degree.jpg
>
>
>
> and here are other pictures of the conduit laid into the trench.
>
> http://www.w2hx.com/x/Antenna-related/Vertical/
>
>
>
> these two pictures (which you’ve already seen if you went through the
> folder of pictures above) show where the hard conduit comes up into the
> soffit and into the shack (second floor above garage).  There is another
> 90-degree bend under the patio flagstone (Same bend as before).
>
> http://www.w2hx.com/x/Antenna-related/Vertical/IMG_20140521_140417_931.jpg
>
> http://www.w2hx.com/x/Antenna-related/Vertical/IMG_20140521_140428_266.jpg
>
>
>
> I am concerned about hardline (some folks have recommended) making those
> bends. But conversely, I am concerned about anything other than hardline
> just pulling apart under the force required to pull it.
>
>
>
> 73 Eugene W2HX
>
>
>
> *From:* Ray Fantini [mailto:RAFANTINI at salisbury.edu]
> *Sent:* Wednesday, May 21, 2014 1:09 PM
> *To:* W2HX; mrca at mailman.qth.net
> *Subject:* RE: coax recommendation sought
>
>
>
> Andrew LDF-450 ½ hardline would be my choice, as long as you are using
> broad sweep turns and have no more than two or three turns you can pull it
> thru by using a snake first and then a heavy pull line. I have no issues
> running 1 kW in broadcast service using this type of line with N connectors
> and they are available at a reasonable price. Think I have at least one or
> two long coils left over from other jobs or that was stripped from towers
> that you can have but will have to check the length first. I would also
> pull a small multi conductor cable at the same time and that way in the
> future you can build a remote relay at the far end to select different
> antennas to connect to that line. The problem is once its run you will not
> be able to fish anything else without pulling everything! Did you use
> conduit or interduct? Also keep in mind that if it’s a buried pathway and
> if both ends are above grade once water gets in it will be there forever.
> Bad news for PVC or soft skin coax.
>
>
>
> Ray F
>
>
>
> *From:* MRCA [mailto:mrca-bounces at mailman.qth.net<mrca-bounces at mailman.qth.net>]
> *On Behalf Of *W2HX
> *Sent:* Wednesday, May 21, 2014 11:26 AM
> *To:* mrca at mailman.qth.net
> *Subject:* [MRCA] coax recommendation sought
>
>
>
> Hello all,
>
>
>
> I need to run some coax from the shack out about 160 feet to a vertical.
> Here’s the story. While having a new kitchen built this past fall and
> winter, I had the workers bury a flexible 2” conduit out to a new antenna
> site.  It is a flexible conduit and I needed that because it had to meander
> a little to avoid bedrock and other outcroppings in the backyard.
>
>
>
> I am looking for some coax that is flexible so that it can be pulled
> through the conduit without too much trouble. I need legal limit HF and
> loss is not a huge issue for me considering its only 160 feet (total
> end-to-end) or so.  Also there will be a coupler at the base so I am not
> worried about loss in the coax caused by SWR.
>
>
>
> One last point, I need to make sure I can affix either a PL-259 or N
> connector, I haven’t decided yet. Can anyone make a recommendation? I’ve
> looked at bury-flex and RG-8X and some others but I am not sure what I
> should get.
>
>
>
> Some other details: I will pull a mule tape through first, and I will
> grease the cable bundle as it goes through. I plan to run 2 coax and some
> multi conductor cable. Hopefully it will all fit within 2”
>
>
>
> 73 Eugene W2HX
>
>
>
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