GNSS receivers with a lower number of supported frequency bands (e.g. only L1+L2, or L1+L5, such as the u-blox ZED-F9P or Quectel LG69T / LC29H) will receive rewards, albeit at a lower level than triple/quad band receivers
A high quality GNSS antenna which supports the receiver’s frequency bands.
The GNSS receiver should either directly support connection to an Ethernet/Wifi network, or be connected to a host (Raspberry Pi, ESP32, or equivalent) that acts as a bridge. It must also have "NTRIP Server" functionality.
Please note that GNSS receivers only receive signals, hence, there is no additional electromagnetic transmission originating from operating the receiver.