[SMCARA] Antenna help

Dave Q quickskys at gmail.com
Sat Aug 16 16:21:07 EDT 2014


Thanks to all for the fast and excellent responses.

Rene,
Thanks for the pics.  If the homemade stand-offs don't work the one you
have will be my next choice.  Your ladder line to coax at the house is sort
of what I'm thinking of for entrance into the house.  But mine will be coax
to coax as the Optimized G5RV I bought requires a minimum of 70' of coax to
function properly.

John,
Just finished cutting up the 4" PVC for the stand-offs and bought some
stainless eye screws for mounting the antenna.  One at the top with either
wire ties or 550 rope.  Decided not to put a pulley at the top because the
ladder line will be attached to the tree and will have to climb the tree
anyway to remove the stand-offs.

Sam,
I'll keep you in mind when it gets cooler and leaves are down.  Can't hurt
to have a couple of "spares".  Maybe even run several in different
directions.  I have a sling shot that I'm hoping will work for now.  I'm
going to tie some small diameter Dacron line to a ½ or ¾' nut and shoot it
from the height were I mount the center insulator.  I have a climbing tree
stand I plan to get up there.  Haven't climbed above 20' with it yet but
what's another 15'.  I may chicken out.

Grant,
Eye screws into the tree to hold the antenna center insulator attached with
length of rope.  Not going to use a pulley at the top as stated above but
plan to put one at each end.  Will attach 550 rope to the end insulators
then run through pulleys with weights on the end.  Window weights?  Boy I'm
getting old, I know my kids don't know what they are.  You mentioned knife
switches one time.  How do/would they fit into the picture?

If you're still with me:

I have a 2' by 3' piece of 0.062 copper flashing I've been saving for the
past 22 years when they built my house.  I was thinking of putting a piece
of this on a poly cutting board, drilling holes for SO-239 bulkhead feed
throughs then placing this inside some type of waterproof enclosure
attached to the outside of the house.  The copper will be grounded to a ½ x
8' copper tube I hope to "auga drill" into the ground.  I'm thinking of
burying ½" Type L copper tubing soldered and thru bolted with stainless
bolts and nuts from this ground pipe to the house ground rod.  Will also
put several 8' copper tube grounds along the path.  Plan to use in-line
PolyPhasers also attached to the copper for the coax to SO-239 fittings. Do
PolyPhasers provide the ground or do I have to somehow ground the coax
also? (may be completely out to lunch on these things)  Station ground to
be attached to brass all thread also attached to the copper outside.

Let me know if I'm completely out to lunch or if this may be workable.
 Most of this info I've found on the internet so it must be true and work
really, really well.

73
Dave - W3DLQ


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