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= GPS =

== Networks Providing GPS GNSS ==
 1. NAVSTAR (US)
 1. GLONASS from Russia
 1. [[https://en.wikipedia.org/wiki/BeiDou_Navigation_Satellite_System|BeiDou]] / COMPASS from China’s
 1. Galileo from Europe ([[https://en.wikipedia.org/wiki/Galileo_(satellite_navigation)|As of December 2017, 22 of the planned 30 active satellites are in orbit.]])

The bottom line is that there is no question of  
== Phone GPS ==
 * GPS Accuracy [[https://www.gps.gov/systems/gps/performance/accuracy/]]
   * Quote: "most of today's civilian devices use only one GPS frequency, while military receivers use two."


== Google - Maps ==
 * To specify a location based on coordinates in Google Maps, use  '''(Name) loc:-24.4356,27.731626'''
    * URL build:  http://maps.google.com/maps?z=12&t=m&q=loc:38.9419+-78.3020
      * z=zoom
      * t=type,  ("m" map, "k" satellite, "h" hybrid, "p" terrain, "e" !GoogleEarth)
      * q=search query (prefixed by loc: then google assumes it is a lat lon separated by a +)
      * e.g. http://maps.google.com/maps?z=12&t=h&q=loc:-26.194707+28.279794&
 * Google Picasa client can upload/backup photos to web, Google maps photo's with embedded GPS coords.
 * Rough script to covert .csv commadelimited file to google .mkv [[attachment:csvtokml-20100330.py]]

== Tools ==
 * [[http://www.csgnetwork.com/gpscoordconv.html|Converter]] decimal to min/sec and back.
 * Google earth - Free Client
 

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CategoryNetworkManagement