Review on Proxicast 10dBi LTE High Gain Omni-Directional Outdoor Antenna - Verizon, AT&T, Sprint Compatible by Ashwin Patel

While this didn't improve my signal that much on my mofi LTE modem, it did make the signal MUCH more stable. Using only the high gain antennas included with mofi I get random dropouts that cause speed and connection to stall on their way. After installation, I only lost connection once and it was due to a WiFi issue, not LTE. (I installed it in the attic, so I'm sure the signal strength could be better outdoors.) Build quality is very good and I believe it can withstand years of harsh weather.