jdemaille

yes those four, but also the antenna PCBs each one connects to, which requires you to disassemble almost the entire unit. those ones were looser, in my experience, than the cable ends connecting to the main PCB.

I FIXED THIS PROBLEM i opened the receiver, and had to disassemble the entire thing to get to the four antennas.... connecting them and the actual transmitter circuit are these pretty standard micro coaxial connectors, every single one on mine was loose... not disconnected but clearly loose... i gently squeezed the each one, and pressed them back in place, feeling that they were clearly connected much tighter, reassembled the device and voila! works like day one.