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Here is a beginner's guide to different satellite navigation systems. Hopefully it will be of use to someone on this forum. It includes GPS, GLONASS, Galileo, Compass, BeiDou, QZSS and IRNSS.
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Hi! We see you’re using an ad-blocker. We’re fine with that and won’t stop you visiting the site.
But as we’re losing ad-revenue from this then why not make a donation towards website running costs?. Or you could disable your ad-blocker for this site. We think you’ll find our adverts are not overbearing!