My vehicle mounted Yaesu ATAS-120A antenna suddenly stopped working yesterday, the antenna lowered itself right down and then wouldn’t tune again or move.
I disassembled the antenna completely today suspecting either water damage from the horror stories shown online of water ingress or a failed solder joint, neither was correct the antenna looked like new inside.
Back on my vehicle the ATAS-120A still wouldn’t work, so I disconnected the power supply from my Yaesu FT-857D radio and reconnected it.
This time the antenna showed INIT on the radio display when I tried to tune and after about 30 seconds it worked perfectly again.
Wish I had done that first before I took it all apart!
73 de Philip G0ISW