A borrowed s-band diplexer has been installed (06-09-12) in between the SRCP LNA and the RF Box SRCP In.
It filters out the s-band uplink RFI from USN's AUWA01 13m antenna.
See the Delta Microwave webpage for details of the S5933 diplexer:
http://www.deltamicrowave.com/sites/default/files/models_pdf/S%20Band/S5xxx/S5933/lab/S5933%20rev%20-.pdf