Affordable RTK Receiver
I'm currently looking into getting a cheaper RTK receiver for our organization for utilities to use to collect curb stops and water lines when our GIS department isnt available.
Im looking for...
1. centimeter accuracy.
2. somewhat durable.
3. user friendly to a person who has not done any GIS work.
4. Bluetooth connection to a ipad or phone
i have my eye on a the polaris s100. any feedback on this unit or something similar would be appreciated.
Try bad Elf. I'm not repping for them but in the real world it's probably your best option with the price and features you're seeking.
Your dilemma will be work flow and follow on data management and and and.....
The higher cost isn't always a legitimate up charge but sitting down to flesh out the bigger long term goal on geospatial data collection and goals for it's use are always overlooked until you buy something that has a short life span in software and hardware regardless of the inexpensive possibilities.
A Javad triumph 2 with Javad Mobile Tools running on a tablet would work. You can also output nmea messages now to be used with arcpad.
i have my eye on a the polaris s100.
I know a guy who has an Emlid Reach, which is in the same price range as the Polaris. His complaint with his Emlid is the radio range between base and rover. Less than 1/2 mile in practice. That, and he doesn't find it to be all that user friendly.
The answers above are valid but overlook one of your stated requirements, namely: cm accuracy.
You cannot obtain cm accuracy from any unit on the market without some sort of correction source to take the inherent randomness out of an autonomous position. That means either another receiver to run as a base or more likely, a network correction source. Centimeter level positioning is, by definition, a precise position and you can spend quite a lot to get from the submeter WAAS corrected units widely available today to the centimeter positioning you say is a requirement. Is that level of accuracy specified by the work you're doing? If so, what sets that specification? I was testing a Juniper Systems Mesa2 a couple of years ago, and using the internal WAAS corrected GNSS solution built into the computer, the distance between two observed points checked within less than 7 centimeters. That should be plenty precise for most GIS-type work. Don't know about the internal GPS in iPhone or Android devices. They certainly are not going to provide accuracy statements. Connecting to the app you're using is likely a separate issue.