Last year I documented the process of upgrading the PM03 Meshtastic node to use a Station G2 and outdoor-rated 5.8 dBi antenna (though it was installed indoors). The hardware used for this installation is: Station G2 Rockland 5.8 dBi Outdoor Antenna Antenna Mount Bracket SMA Antenna Adapter N-Type to SMA Anker USB C Charger with USB C Cable, 20W (2-pack)