electric gates

We have electric gates, driven by FAAC control unit that uses remote key fobs to open the gates. The fobs are FAAC XT2 433 SLH LR. As the name suggests they operate on 433 MHz. However, the range is non-existent. Literally need to be next to the gate to open it. This does not seem correct...

Hi all I've got a CAME ZA4 PCB and CAME F1000 motors. Bit of a puzzler - our gates have started tripping the main RCD in the house (but never their own MCB in the garage), and I'm not familiar enough with the circuitry to work out why... Things I've discovered so far... With both gate motors...