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elevation help

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Anonymous   07-13-2004 at 02:10:46 AM

Archived from groups: alt.internet.wireless (More info?)

 

I would like to link to locations together but I need the elevation between
the them how can I find that.

I need to plot it to see if the dish can see each other.

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Anonymous   07-13-2004 at 02:10:47 AM
- 0 +

Archived from groups: alt.internet.wireless (More info?)

 

On Mon, 12 Jul 2004 20:10:46 -0500, "Shampoo Store" <GoAway@spam.com>
wrote:

>I would like to link to locations together but I need the elevation between
>the them how can I find that.
>
>I need to plot it to see if the dish can see each other.

I use several tools.

Topo! and DeLorme Topo USA mapping software can give you elevation
contour plots. They weren't really designed for propogation studies
(no Fresnel zones) but they do work work:
http://maps.nationalgeographic.com/topo/
http://www.delorme.com/topousa/

I use Radio-Mobile (freeware) with the SRTM (Shuttle Radar Topography
Mission) maps.
http://www.cplus.org/rmw/english1.html
http://www2.jpl.nasa.gov/srtm/
The RMPATH program is a minor part of the package, but it does what
you want. However, learning the package is probably overkill.

There a several online terrain contour calculators:
http://gbppr.dyndns.org:8080/path.main.cgi
http://www.qsl.net/n9zia/wireless/page09.html
http://users.rcn.com/acreilly/los_form.html
http://www.megalithia.com/elect/terrain.html (UK only)
There are probably more...


--
Jeff Liebermann jeffl@comix.santa-cruz.ca.us
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 AE6KS 831-336-2558

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Anonymous   07-13-2004 at 04:23:01 PM
- 0 +

Archived from groups: alt.internet.wireless (More info?)

 

In article <hvadnWwmZLgKq27dRVn-gw@comcast.com>, Shampoo Store
<GoAway@spam.com> writes
>I would like to link to locations together but I need the elevation between
>the them how can I find that.
>
>I need to plot it to see if the dish can see each other.
>
>
>

Radiomobile is your friend, takes a bit of setting up but its superb for
all these sort of problems, links and coverage at most any usable
frequency and aerial height.

http://www.cplus.org/rmw/english1.html

Totally free of charge, and uses the SRTM data for terrain data basing
which covers most all of the inhabited world!....
--
Tony Sayer

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