GB3WB Gallery GB3WB_Gallery LDF5-50 feeder installation for 2.4GHz Internet link at GB3WE. Photo 3 Close up of the RS232 remote controlled PCB. This is what controls the GB3WB camera you watch on the Internet. Cold solder tinned board. PCB collection. Cleaned video board in the lab.. nice. GB7WE FM/DV DUAL MODE LOGIC CONTROLLER