[Leica] [LRflex] Antenna vs. roof
Aram Langhans
leica_r8 at hotmail.com
Tue Mar 9 19:11:23 PST 2021
I would say, since you are looking uphill, and the line from the top of
your tower roughly lines up with their roof line, that their roof is
quite a bit higher than your tower since it is further away yet appears
lined up vertically. If you could go across the street and maybe
decrease the angle of view to the top of the tower and roof, you could
probably see this better. Other than that I guess you could wait for
some sunshine and a few shadows to use some long forgotten trig to
calculate the height of each from the ground assuming the sun shines in
a suitable direction.
Aram
On 3/9/2021 7:00 PM, Peter Klein wrote:
> This is sort of off-topic, but does involve photography. Is the top of
> my roof tower a bit higher than my neighbor's roof, as it appears to
> be? Or does my iPhone 7 camera's distortion or where I stood make the
> picture meaningless? This is significant because I'm thinking of
> putting up a directional antenna for VHF (ham radio), and having a
> unobstructed view of the horizon is very desirable.
> <http://gallery.leica-users.org/v/pklein/temp/IMG_1036RoofAntennas-w.jpg.html>
>
> If you know of a reasonably easy way to determine this without
> expensive surveyor's tools, please tell. ("Brother, can you spare a
> Theodolite?")
>
> Background: When the roof tower was installed, the house on the left
> was a one-story rambler. Now it's a McMansion.
>
> --Peter
>
>
--
Aram Langhans
(Semi) Retired Science Teacher
& Unemployed photographer
“The Human Genome Project has proved Darwin more right than Darwin himself would ever have dared dream.”
James D. Watson
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