Hi , i dont know if it a really bad coincidence but i upgrade one of my relay with a sxt to make a ptp to a 802.11a AP on vertical polarity temporary . I waiting the winter finish to upgrade the AP with another SXT. I use the SXT in Station mode on 5.12 with vpls over. I never touch TX power (leave at default). I aim the antenna got -70 TX/RX. I leave the antenna for like 1-2 days. And the TX DROP to -86 and rx keep up at -70. It's the second SXT i install there and got the same problem. I reset the antenna with NETINSTALL. i keep a 20-25 DB diff between TX and RX. I got a bad batch or something else... Anybody got this kind of issue????