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Recs on accurate (5M) GPS devices

Posted on 2/19/21 at 2:02 pm
Posted by tigerpawl
Can't get there from here.
Member since Dec 2003
22321 posts
Posted on 2/19/21 at 2:02 pm
Hoping to get recommendations on either hand-held GPS devices or Bluetooth smartwatches with highly accurate GPS capability. By highly accurate, I would like to get within 5 meters with short signal acquisition times.

Thanks in advance...
Posted by tenfoe
Member since Jun 2011
6847 posts
Posted on 2/19/21 at 2:41 pm to
What are you trying to do with it?
Posted by Boudreaux35
BR
Member since Sep 2007
21530 posts
Posted on 2/19/21 at 3:05 pm to
quote:

What are you trying to do with it?


Sounds like get within 5 meters of a location with short signal acquisition times
Posted by TheCurmudgeon
Not where I want to be
Member since Aug 2014
1481 posts
Posted on 2/19/21 at 3:07 pm to
I read OP differently. I thought he was trying to get within 5 meters of a location with short signal acquisition times.
Posted by tenfoe
Member since Jun 2011
6847 posts
Posted on 2/19/21 at 3:47 pm to
quote:

Sounds like get within 5 meters of a location with short signal acquisition times



There are tons of different applications a GPS can be used for. From surveying to finding a deer stand in the dark, accuracy and features required differ. The application will determine what type of unit he should get.
Posted by tigerpawl
Can't get there from here.
Member since Dec 2003
22321 posts
Posted on 2/20/21 at 9:21 am to
So after getting off my butt and googling, it looks like you need a WAAS-enabled device to get within 5 meters/quick acquisiton.

Wide Area Augmentation System

How it Works
WAAS consists of multiple ground reference stations positioned across the U.S. 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 1 of 2 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.

A WAAS-capable receiver can give you a position accuracy of better than 3 m, 95 percent of the time.

LINK
This post was edited on 2/20/21 at 9:30 am
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