what is (WAAS/EGNOS?)

 

What is WAAS/EGNOS? It is a mode on my Garmin but i got no clue what it does

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Nicpfeif12 Garmin Nuvi 5000 =)/ Winnebago 24f Minnie/ PHILLIES 07 NL east champps/ Philidelphia PHILLIES 2008 World Champss/ PHILLIES 09 NL CHAMPS/ 2010 NL EAST CHAMPIONS

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Wikipedia

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Computers are useless. They can only give you answers. - Pablo Picasso (Bob - Garmin c530, eTrex Vista HCx)

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