>> Anybody got any idea if the 5.8 sq. ft. "Surface Area" listed in the
>> Heathkit manual is a good number to use for wind load?
The surface area listed in the Hy-Gain TH4-190 manual on BAMA
<http://bama.edebris.com/manuals/hygain/th4-190/> is 7.5 ft^2.
Since surface area computations for antennas of that vintage are
notoriously low, I would use *at least* they Hy-Gain specifications.
73,
... Joe, W4TV
On 2019-07-05 8:11 PM, John Kemker wrote:
Anybody have any ideas?
If you reply, please do so on the list, not in a private email. I'd like
to tap into the collective wisdom of the group, not just one person's
opinion.
--73 de W5NNH
On Mon, Jul 1, 2019 at 6:01 PM John Kemker <kemkerj3@gmail.com> wrote:
I've purchased a used Heathkit SA-7010 from another ham and am in the
process of restoring it to usable condition. MFJ's Tech Support told me
that it's basically a TH-4 from Hy-Gain, marketed by Heath back in the day.
Anybody got any idea if the 5.8 sq. ft. "Surface Area" listed in the
Heathkit manual is a good number to use for wind load? I'd like to figure
out if the CD45 that I've got will be sturdy enough to turn this antenna.
--73 de W5NNH
--
--John E Kemker III
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