Any recommendations for external LTE antennas?

I have a couple research stations with marginal signals. I’m looking at external antennas, of which there are several, but can’t find (real) reviews. Anyone have suggestions? I’m considering the Sierra Wireless Airlink High Gain Directional Antenna, mostly based on size, two connections, and will mount easily where I plan to install one.

Hi Gary.Hodges ,

You can use the AirLink® Antenna: 6-in-1 Dome. Please refer to below link for more antennas.