Well, for comparison I originally bought the GPS module BN-220. He could find GPS satellites but sometimes lost connection. At the moment I don't know if it's due to interference (GPS is incredibly sensitive) or something with the module itself. I've tried everything to make it work reliably, including changing the ublox configuration. Eventually I gave up and soldered the module. When I got this module I soldered it on, powered up my drone and got 12 satellites into my apartment without messing anything up. I took it with me in the field and easily got 16 satellites and best of all it stayed solid. This GPS module is highly recommended. So far it seems incredibly reliable.
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