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.
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