The UBlox Neo 6M is a 50 channel GPS receiver, supporting regional WAAS, EGNOS, MSAS SBAS correction services.
It can provide up to 2 meter accuracy, with tracking receive strengths as low as -162 dBm, and update rates as high at 5 per second (5Hz).
However, where this GPS really shines is its high altitude capability. UBlox modules interpret the COCOM limits as AND instead of OR. While traditional GPS receivers will cut out at a certain altitude OR a certain speed, UBlox Neo 6M modules require both to be true, vastly increasing its altitude capability.
This is extremely important for high altitude balloon flights (HAB).
You can utilize the UBlox Neo 6M with our HamShield to provide APRS positions of your balloon, or our new HamShield: LoRa Edition module for even longer range balloon positioning.
So how high can UBlox Neo 6M go? Up to 160,000 ft (50,000 meters), assuming you enable dynamic platform model 6, 7, or 8 on startup. See page 119 of the datasheet for details on how to configure this. We are also working on a tutorial on how to configure this within your sketch.
Input voltage: 3-5V
Interface: 5 volt tolerant TTL Serial
Backup Power: board mounted coin cell
Backup Flash: installed
Comes with 4 pin header
U-Blox U-Center software for PC: https://www.u-blox.com/en/product/u-center