[TowerTalk] Measuring Terrain Slope / Elevation

[Pat Barthelow]

Hi Dave,

Gee...word travels fast on email....Unfortunately, TOPO only draws the
profile plots and you have to pick off the elevations and distances from
the plots..and enter your own ascii file ..great idea...someone should
call the Topo makers, and ask
them to also provide, in their next version, an ascii file of the
profiles....My guess is that you can buy it at better
outdoor/camping/hunting supply stores
	Also, there was a mention elsewhere on the reflector, of using
DGPS for acquiring data points for plotting profiles....Even Differential
((D GPS), which provides higher accuracy than raw GPS,) probably will not
provide the accuracy you need to for terrain
profiles used in antenna modelling...especially the elevation readings,
which are quite innacurate unless sophisticated equipment  is used....

73, DX, de Pat, AA6EG/N6IJ;
aa6eg@hh.tmx.com

599 DX Drive, Marina CA 93933
"The Contest Station from the Government"

On Tue, 22 Dec 1998, Dave D'Epagnier wrote:

> Hi pat,
> say... do you know what type of ground profiles Topo generates? Is in
> the format that TA or YT can read? Also, where can I buy Topo?
> 
> thanks,
> Dave
> 
> > ----------
> > From: 	Pat Barthelow[SMTP:aa6eg@hh.tmx.com]
> > Sent: 	Tuesday, December 22, 1998 1:27 PM
> > To: 	T A RUSSELL
> > Cc: 	TOWERTALK@contesting.com
> > Subject: 	Re: [TowerTalk] Measuring Terrain Slope / Elevation
> > 
> > 
> > HI Tom,
> > 
> > 
> > Sure...
> > 
> > Get the software Map Program called "Topo".  A CD ROM disk covering
> > your
> > area has the USGS Maps within, and the capability to generate ground
> > profiles  for you, using your inputs as to point of origin, and
> > azimuth
> > therefrom.....a great, cheap program....It also gives realtime
> > azimuths,
> > distances, bearings, Lat-Longs, and elevations, as you move the cursor
> > around on your selected map.
> > 
> > 73, DX, de Pat, AA6EG/N6IJ; 
> > aa6eg@hh.tmx.com
> > 
> > 599 DX Drive, Marina CA 93933
> > "The Contest Station from the Government"
> > 
> > On Tue, 22 Dec 1998, T A RUSSELL wrote:
> > 
> > > 
> > > Fellow Towertalkians:
> > > 
> > > I would like to create a more accurate terrain profile in front of
> > some
> > > of my antennas for say 500 to 1000 ft out, every 50 ft.
> > > 
> > > Other than using a transit, are there some simple methods for
> > > determining slope or changes in elevation?
> > > 
> > > Thanks for any clever ideas.
> > > 
> > > Merry Christmas to all,
> > > 
> > > Tom  N4KG
> > > 
> > > 
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