Review on 📡 High-performance Yagi Directional Antenna for 3G/4G/LTE with 9dBi Gain, Supporting 806MHz-960MHz and 1.7-2.5GHz Frequencies, Equipped with 2FT Cable, SMA Male to TS-9 Adapter - Boost Cell Phone Signal - Tupavco TP514 by Alonzo Wilkins

This antenna worked about two months, improved the signal from -89dBm from Omni to -79dBm with two such antennas pointed at the nearest tower. However, over the past two months, the signal has steadily deteriorated, as has the quality of my internet. I thought it was the modem so I replaced it. Then I decided it was the antenna cables and replaced them. I finally decided to replace the antennas and my signal with a few different antennas dropped to -73dBm, better than even if those antennas were brand new! I haven't taken the antenna apart myself, but I assume moisture got in and corroded the poorly made internal connections. I recommend staying away from these nameless brands and sticking with a well-known brand if your livelihood or children's school for your rural internet solution depends on it.