I’ve been on again, off again in amateur radio, and for the past year have been
on again with a vengeance! I am currently running a new Flex & Maestro at 100w
to an EFHW-8010 at 100ft. I love CW and DX and may try my hand at contesting at
some point. With this setup my noise is quite low, S1 - S2 typically, I I can
hear a lot more than can hear me. More power will come, but I would rather have
more directionality first. I’ve never had a directional antenna before, nor a
tower of any sort.
I understand Santa Cruz Co. says that “Antenna Support Structures” must be
below 50’. I have been eyeing a SteppIR DB-18E, although it might be tight in
my clearing in the forest of about 50’ in diameter. I could get the smaller
DB-11 that would fit more comfortably, although I hate to give up the gain on
40 & 30. Tree cover in the area of the clearing is 120’ pines (hmm, maybe mount
on top of one of those?), coastal oaks at 40’, and youngish redwood trees on
the uphill property boundary. To get my clearing I’ll have to trim back redwood
branches, take out an 8” dia. madrone, and take out 2 or 3 fairly large pine
branches. The site is up the side of a hill, 40’ elevation above the house, but
another 40’ to the hill top on the neighbor’s property. Access is poor for
anything larger than a bobcat or possibly a Deere tractor. Concrete will have
to be pumped in.
I am reading and enjoying “Up the Tower”, which clued me to this reflector -
very useful book!
Obviously I can benefit from all sorts of guidance. To stir the pot a bit here
are some questions:
1. Is a crank up out of the question, given the location? Not sure how to get
it up a sandy/loose dirt hillside. I hear some will not climb crank ups, afraid
of guillotine effect... I don’t think I would have room to do a tilt over.
2. Guyed or unguyed? Is the primary consideration the cost difference? Looking
at Rohn 65G 65SS050 as it says it can handle 29.3 sq ft antenna at 70mph & 19.7
sq ft ant at 80mph, 14.5 sq ft at 90mph. DB-18E is 12.1 sq ft. The
antenna/tower location is on one side of a saddle point and winter winds come
whipping in sometimes during storms. Once had a micro tornado or something that
ripped the live top out of one of the coastal oaks and carried it 25’ leeward.
Don’t know that any tower would hold up to that, top branch was 6 - 8” in
diameter.
Given the tight space, hauling the antenna straight up next to the tower
without having to wig-wag or use a rather tight tram-line, not having guys
seems an advantage.
3. Am going into the county offices on Tuesday on another matter, and thought
perhaps I would begin investigating the Antenna Structure Permitting process.
Advice? How prepared in advance should I be?
4. There’s a lot of additional safety equipment, tools, parts, etc. that goes
along with this erection process. Am I better off finding a company to do this
for me? I’m pretty handy, and also like climbing, I’ve done indoor rock
climbing for many years - I just figured that improving / maintaining /
fiddling with things would be non-stop once it was erected.
5. What am I likely overlooking?
Thanks everyone for your insights,
Ken WC6Y
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