GB3GG has 3 inputs, one on 23cms (1280Mhz), one on 13cms (2388Mhz) and 10Ghz (10315Mhz). Output is on 2420Mhz.
The three inputs allow 3 users to operate simultaneously. This is achieved by using a quad picture processor. Three quadrants display the received pictures from each of the inputs, leaving one to display the GB3GG ident and info pages. 

Please click on the area if interest on the block diagram for more detailed information on each component.