A lot of SparkFun's GPS product pages link to this "GPS Tutorial by Michael Simpson", e.g.:
It leads to a 404 error; you might want to link to the wayback machine instead:
https://web.archive.org/web/20130415071 ... /GPS.shtml
Google: site:sparkfun.com "GPS Tutorial by Michael Simpson"
Tips and questions relating to the GPS modules from SFE
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