Updated Deep Space Communications Complex VLBI Processor

JPL VLBI Data Acquisition Modernization Program has two Current Purposes with two different recording systems. One for Radio Reference Frame and Time & Earth Motion Observations - Uses MarkIV formatters and Mark5A recorders. One for Double Differential One Way Ranging for spacecraft tracking - Uses Wideband VLBI Science Receiver. We are currently working on a new modernized system to merge functions into one new hardware platform. It will replace the current MarkIV, PCFS and Mark5-A equipment. The new system will be called the JPL Deep Space Communications Complex VLBI Processor (DVP) It is based on hardware development at JPL, NRAO and Haystack. It uses a JPL designed digitizer and the CASPER ROACH board to perform digital backend processing: sampling, channelization, formatting. It uses Mark5C disk units to record data. It aims for compatibility with other VLBI centers recording equipment while conforming to JPL DSN system interface requirements.