Recently, while flying one of my Phantom 3 pro drone, I notice that when I get a signal loss (both video and RC), it takes longer than usual for the signal to return.  I know the RTH failsafe is triggered and the drone starts heading home, but the time it takes for the signal/video feed to return is much longer.  I compared by flying my second Phantom 3 pro drone using the same radio controller and the same flight route and where it loses signal and triggers RTH, the video/signal feed comes back a lot sooner.  Flight parameters (altitude, RTH altitude, speed, flight mode (P-GPS)) are all kept constant between both drones.

Would slower signal reaquisition be a sign of a faulty, deteriorating OFDM module?  I have visually inspected the antenna connectors and all four are properly secured to the OFDM board.  This drone was recently rebuilt due to stress fractures on the motor arms.  I meticulously made sure all connectors and wires are properly routed and connected. Other than the slower signal reaquiring problem, all other flight aspects are stable and normal.   

Recently, while flying one of my Phantom 3 pro drone, I notice that when I get a signal loss (both video and RC), it takes longer than usual for the signal to return.  I know the RTH failsafe is triggered and the drone starts heading home, but the time it takes for the signal/video feed to return is much longer.  I compared by flying my second Phantom 3 pro drone using the same radio controller and the same flight route and where it loses signal and triggers RTH, the video/signal feed comes back a lot sooner.  Flight parameters (altitude, RTH altitude, speed, flight mode (P-GPS)) are all kept constant between both drones.

Would slower signal reaquisition be a sign of a faulty, deteriorating OFDM module?  I have visually inspected the antenna connectors and all four are properly secured to the OFDM board.  This drone was recently rebuilt due to stress fractures on the motor arms.  I meticulously made sure all connectors and wires are properly routed and connected. Other than the slower signal reaquiring problem, all other flight aspects are stable and normal.