[aprssig] GPS 18 coordinates

[Andrew Rich (Home)]

This might be of interest - been doing some more work on my 434 MHz 19k2 GPS tracker

http://www.tech-software.net/aviation_026.jpg

----------------------------------------------------------
Andrew Rich 
Amateur Radio Callsign VK4TEC
email: vk4tec at tech-software.net
web: www.tech-software.net
  ----- Original Message ----- 
  From: Andrew Rich (Home) 
  To: TAPR APRS Mailing List 
  Sent: Saturday, August 08, 2009 3:22 PM
  Subject: [aprssig] GPS 18 coordinates


  Hello

  Doing some more work on a tracker here, in ASM for the 16F628

  I worked out my GPS18 does degrees minutes and decimal minutes 

  I am not sure what it will do in those areas where the degrees goes less than 3 and two digits, as I am at -2700.0000 and 15300.0000

  Can anyone help me to make my track "universal" by supplying some NMEA examples of a GPS 18

  At the moment I see

   2700.0000
  15300.0000

  My question is, does the GPS 18 zero pad ? when it gets to be smaller than two digits, assuming 90 is the largest and 180 is the largest

  ,0600.0000, or ,600.0000,  (-90 to +90) 6 degrees

  ,08700.0000, or ,8700.0000, (-180 to +180) 87 degrees

  ,00800.0000, or ,800.0000, (-180 to + 180) 8 degrees

  Andrew 




  ----------------------------------------------------------
  Andrew Rich 
  Amateur Radio Callsign VK4TEC
  email: vk4tec at tech-software.net
  web: www.tech-software.net


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