[Ottawa_users] re: database of towers
samper.d at gmail.com
Sat Oct 4 12:26:52 EDT 2008
Industry Canada houses all this info...
their DB holds info such as:
* tower height,
* base elevation,
* Antenna Elevation
* antenna type.
the searches and results are by frequency and deal with the antenna. I
have found that the towers are listed as part of the antenna spec
instead of solo.
So you have to find an antenna based on a particular frequency and then
extract the tower data.
I took a wuick look for it and it looks like their site has moved
around... it will take a few hours of digging probably but try the usual
* Location, lat/long
* tower location
* antenna database
you'll find it....
I had a dunp of the DB from a few years ago and plotted cell phone
towers of the ottawa area so the info (once you find it) will be useful.
Post the link back to the list once you've found it.
P.S i think CRTC just does all the policy work, Industry Canada holds
all the licencing info.
> This isn't an an open source question as such but I'd like to tap into the geospatial knowledge of all the smart people here to see if someone can help me.
> I'm looking for spatial data with regard to towers i.e. communications, microwave, TV, etc. I know some of these show up on NTS maps but I'm hoping for something complete that is kept current and would be precise at a larger scale than topo mapsheet. These towers always have flashing red lights for warning low flying aircraft. Would NAV Canada maintain this kind of information?
> Any help the group could provide will be much appreciated.
> Paul Churcher
> GIS Specialist / Spécialist de SIG
> Department of National Defence - DRAP 3-3-4-2
> NDHQ - 9CBN,
> 101 Colonel By Drive,
> Ottawa, ON K1A 0K2
> Ottawa_users mailing list
> Ottawa_users at lists.osgeo.org
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