Hi ghifarirp, and thanks for posting.
Yes, GPS should work worldwide wherever you have a clear view of the sky.a. May i know if this item can work in small airport for my project?
You'd need 1 GPS for a base station and a second GPS to mount to your drone.b. How many rtk module needed if i want to use it on drone (rover) and base station in small airport?
It shouldn't be, no.c. Will the accuracy reduced if im using drone as rover?
It looks like these are in stock right now, but if they were not, the 'Add to cart' button would be replaced with a 'Backorder' button. Clicking 'Backorder' and then checking out will reserve a unit for you and those would ship once they are back in stock.d. If this item is available, but not is stock (Backorder Item). What i need to do to oder this item? Also how long will it shipped?
For shipping times, it really varies by the shipping method you choose. It can take from 1-2 business days to 6 or more weeks depending on what method you choose for shipping. For more information on our shipping methods, check our shipping page out at the link below.