This
extended cellular modem antenna has been tested by ZPE with the cellular modems used in Nodegrid appliances
successfully:
Magneto MB.250.B Three Way Base Mount for LTE or Wi-Fi MIMO 2*2 antennas
Notes: Though not certified for 5G cellular, we have had success using two MB.250.B extended mounts with 4 identical 5G antennas. Be sure to install the mounts next to each other for the best performance. ZPE Systems also resells these via SKU: MB.250.B
Yagi Directional Antenna 3G/4G/LTE 9dBi 800MHz-960MHz and 1.7-2.5GHz SMA Male cable to TS-9 adapter
Notes: This is designed for 4G/LTE and will have degraded performance if used for 5G cellular.
These products can be purchased directly through the manufacture or their authorized
resellers.