Logical signal path for 600 MHz observations.
All frequencies shown are in MHz.
Figures 1 to 3 show the logical signal paths for the front of the racks. Several pieces of equipment are duplicated to make this possible. In particular, there are separate down converters and LOs. To change from 600 or 400 MHz to 1400MHz only the following minimal changes should be required. The other end of these cables should remain plugged into the IEEE interface box.