This is the preferred GPS module for the DIY Blackout Comms T-Deck communicator.
 
What is Gravity: GNSS GPS BeiDou receiver module?
This GNSS BeiDou positioning module supports multi-satellite system joint positioning and provides high-precision, high-speed, and stable data such as longitude, latitude, time, and altitude. It is suitable for various outdoor positioning scenarios, such as vehicle positioning, item tracking, weather stations, and outdoor positioning.
 
Multi-Satellite System
This GNSS receiver module uses the GNSS positioning system and support satellite systems such as BeiDou, GPS, GLONASS, QZSS, etc. Compared with traditional single GPS positioning, joint positioning using multiple systems increases the number of visible and usable satellites, which improves positioning accuracy and speed. It can also achieve stable high-precision positioning even in complex environments, providing more accurate positioning data.
 
Specification
Operating Voltage: 3.3 to 5.5V DC
Output Signal: I2C/UART
Positioning Accuracy: 2.0m CEP
Time for First Positioning: 30s for cold start; 2s for hot start
Power Consumption: 40mA
Antenna Interface: IPEX1
Antenna Frequency: 1561-1575.42MHz±3MHz
Dimension: 27mm*37mm/1.06*1.46"
 
For more information, see DFRobot's TEL0157 Product Wiki