+Team Cotati Posted April 27, 2006 Share Posted April 27, 2006 You've heard the term WAAS, seen it on packaging and ads for Garmin® products, and maybe even know it stands for Wide Area Augmentation System. Okay, so what the heck is it? Basically, it's a system of satellites and ground stations that provide GPS signal corrections, giving you even better position accuracy. How much better? Try an average of up to five times better. A WAAS-capable receiver can give you a position accuracy of better than three meters 95 percent of the time. And you don't have to purchase additional receiving equipment or pay service fees to utilize WAAS. The origins of WAAS The Federal Aviation Administration (FAA) and the Department of Transportation (DOT) are developing the WAAS program for use in precision flight approaches. Currently, GPS alone does not meet the FAA's navigation requirements for accuracy, integrity, and availability. WAAS corrects for GPS signal errors caused by ionospheric disturbances, timing, and satellite orbit errors, and it provides vital integrity information regarding the health of each GPS satellite. How it Works WAAS consists of approximately 25 ground reference stations positioned across the United States that monitor GPS satellite data. Two master stations, located on either coast, collect data from the reference stations and create a GPS correction message. This correction accounts for GPS satellite orbit and clock drift plus signal delays caused by the atmosphere and ionosphere. The corrected differential message is then broadcast through one of two geostationary satellites, or satellites with a fixed position over the equator. The information is compatible with the basic GPS signal structure, which means any WAAS-enabled GPS receiver can read the signal. Who benefits from WAAS? Currently, WAAS satellite coverage is only available in North America. There are no ground reference stations in South America, so even though GPS users there can receive WAAS, the signal has not been corrected and thus would not improve the accuracy of their unit. For some users in the U.S., the position of the satellites over the equator makes it difficult to receive the signals when trees or mountains obstruct the view of the horizon. WAAS signal reception is ideal for open land and marine applications. WAAS provides extended coverage both inland and offshore compared to the land-based DGPS (differential GPS) system. Another benefit of WAAS is that it does not require additional receiving equipment, while DGPS does. Other governments are developing similar satellite-based differential systems. In Asia, it's the Japanese Multi-Functional Satellite Augmentation System (MSAS), while Europe has the Euro Geostationary Navigation Overlay Service (EGNOS). Eventually, GPS users around the world will have access to precise position data using these and other compatible systems. It just keeps getting better Quote Link to comment
Jeremy Posted April 27, 2006 Share Posted April 27, 2006 (edited) Tired of posting your own threads? Copy some random web page with little to no effort! Or am I missing something? Edited April 27, 2006 by Jeremy Quote Link to comment
+briansnat Posted April 27, 2006 Share Posted April 27, 2006 (edited) Your forgot something Edited April 27, 2006 by briansnat Quote Link to comment
Voigt54601 Posted April 27, 2006 Share Posted April 27, 2006 Tired of posting your own threads? Copy some random web page with little to no effort! Or am I missing something? dude, why? Were you thinking you were informing us? I like your enthusiasm, but copy and paste sessions are frowned upon, obviously Quote Link to comment
+Team Cotati Posted April 28, 2006 Author Share Posted April 28, 2006 Well you caught me Jman. That ought to teach me a good lesson to not try and slip one by you. I just cannot imagine what came over me. Must have been a flashback to the 'adrenaline' rush that I experienced earlier. Man, it was a real doozie I'll tell you. Quote Link to comment
+Adrenalynn Posted April 28, 2006 Share Posted April 28, 2006 Where'd I put that troll repellent? Deet just never seems to be strong enough for ugly, well established Trolls... The hundred percent backwoods stuff does an ok job of keeping baby trolls off, though... Quote Link to comment
+Airmapper Posted April 28, 2006 Share Posted April 28, 2006 (edited) I found this cool info on a site, maybe I should copy/ paste it into a new thread!! Edited April 28, 2006 by Airmapper Quote Link to comment
+Team Cotati Posted April 28, 2006 Author Share Posted April 28, 2006 This one's even neater........skeeter: http://www.bobcat.com/index.html Quote Link to comment
+Adrenalynn Posted April 28, 2006 Share Posted April 28, 2006 Oh yeah, here it is... Quote Link to comment
Pto Posted April 28, 2006 Share Posted April 28, 2006 You people obviously are bored, have too much time on your hands or really live for this <_____> ® is a dead giveaway isnt it? Quote Link to comment
+Googling Hrpty Hrrs Posted April 28, 2006 Share Posted April 28, 2006 You people obviously are bored, have too much time on your hands or really live for this <_____> ® is a dead giveaway isnt it? Took the words right out of my mouth! Quote Link to comment
+Airmapper Posted April 28, 2006 Share Posted April 28, 2006 Adrenalynn, can I have your troll repellent? I'll trade it for this: Quote Link to comment
+Adrenalynn Posted April 28, 2006 Share Posted April 28, 2006 Adrenalynn, can I have your troll repellent? I'll trade it for this: Sure - but I tossed it together kinda quick. I planned on making a better one tonight... Quote Link to comment
+Airmapper Posted April 28, 2006 Share Posted April 28, 2006 Ohhh, I'll wait for the Extra strength troll repellent! Quote Link to comment
vagabond Posted April 28, 2006 Share Posted April 28, 2006 Kind of reminds me of of my 7 year old grandsons playing cards Quote Link to comment
+Wild Thing 73 Posted April 29, 2006 Share Posted April 29, 2006 (edited) Adrenalynn, can I have your troll repellent? I'll trade it for this: Sure - but I tossed it together kinda quick. I planned on making a better one tonight... Keep on keeping on I love it, and yes I'm bored Your comments lite up my life Edited April 29, 2006 by Wild Thing 73 Quote Link to comment
+Sagefox Posted April 29, 2006 Share Posted April 29, 2006 Gone a little Off-Topic have we? Quote Link to comment
uperdooper Posted April 29, 2006 Share Posted April 29, 2006 yeesh! that's 2 days in a row we've had to use this. Quote Link to comment
+LauraG8019 Posted April 29, 2006 Share Posted April 29, 2006 yeesh! that's 2 days in a row we've had to use this. LMAO!!! Quote Link to comment
+Robespierre Posted April 29, 2006 Share Posted April 29, 2006 (\___/)(='.'=) This is Bunny. Copy and paste Bunny into your (")_(") signature to help him gain world domination. are you sure it's not a hamster? Quote Link to comment
+The Leprechauns Posted April 29, 2006 Share Posted April 29, 2006 (\___/)(='.'=) This is Bunny. Copy and paste Bunny into your (")_(") signature to help him gain world domination. are you sure it's not a hamster? No, it's not a hamster. Hamsters have already achieved world domination. Bunnies are just wannabes. Quote Link to comment
nobby.nobbs Posted April 30, 2006 Share Posted April 30, 2006 your thinking about lab mice aka Pinky and the Brain!! Quote Link to comment
+Team Cotati Posted April 30, 2006 Author Share Posted April 30, 2006 (edited) your thinking about lab mice aka Pinky and the Brain!! You're Edited April 30, 2006 by Team Cotati Quote Link to comment
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