[BULK] - Re: [SixClub] Antennas...

[Steve Katz]

You didn't say how far away the 13,000 foot peaks are.  If you're in a deep
crevasse with peaks that high only a mile or two away, that's a very bad
location!  But if the peaks are several miles away, simple trig will tell
you what your radiation angle needs to be to clear them.  If the angle
between your antenna location and the mountain peaks is less than 20
degrees, I'm sure you'll work out quite well.  If it's higher than 30
degrees, that's a bad thing, but there might still be hope.  If it's higher
than 45 degrees, I'd think about taking up another hobby...

I lived at a location 1400' asl with a 3600' hill directly behind me,
starting literally in my backyard.  Very steep, it was a literally
exhausting foot climb from my back patio to the "top end" of my own
backyard, and just kept climbing from there.  That's too close.  The only
way I could get over that hill was to aim 180 degrees away from it and
bounce off another set of hills in that direction, farther away.  Working
*anything* on 50 MHz in the direction of the big climb was pretty much
impossible, although, again, some backscatter was available by aiming away
from the hill.

Thankfully, at that site, I was "open" in the *other* directions, so the big
blockage only covered about 120 degrees of the compass.  And that blockage
was North (from NW to NE), so working stuff "short-path" over the pole was
literally impossible.  Everything far away on HF had to be long path, but I
could usually still work it (just at different times of day, not necessarily
during gray line).

WB2WIK/6

"There is no reason anyone would want a computer in their home." - Ken
Olson, Chairman & Founder, Digital Equipment Corporation (1977)

> -----Original Message-----
> From:	mike N0QFV [SMTP:n0qfv at stic.net]
> Sent:	Monday, August 02, 2004 9:38 AM
> To:	World Wide Six Meter Club
> Subject:	[BULK] - Re: [SixClub] Antennas...
> 
> Rental Cars LLC John Carson wrote:
> 
> >Happy Monday all,
> >
> >I would like to pose a question and any help in finding the answer will
> be
> >greatly appreciated.
> >I have a second home in the mountains of North central New Mexico at an
> >elev. of approx. 8900 ft. The area is a mountain valley with most of the
> >surrounding peaks rising as high as 13000 ft. I would like to put up a
> >mast of about 50 ft and then an hf antenna and a seperate 6m log
> periodic.
> >My question is can I get out of this mountain valley or an I going to be
> >fightting a losing battle?  All the tv (and fm radio) stations use
> >translators high up on the mountain ridges.
> >
> >so, what should I do to make sure I can get my signals out?
> >
> >73,
> >
> >John Carson  kd5srw
> >EM15hf
> >Norman, OK!
> >
> >  
> >
> Hi John, you don't specify but I would guess that your talking about 
> Cloudcroft ? Any way I remember that there were some hams there about 10 
> years ago. Sorry I don't remember any calls but some of them were in the 
> Roswell area. You might check with the Communications Battalion of the 
> Organized NM State Militia. A bunch of them were the ones I remember. A 
> bit vague but I hope this sorta answer helps.
> 
> Mike N0QFV
> 
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