The DR-900/ RP-900 is a 19" Dual Rack Mount Kit for 2 x JTS Half rack receivers into a 1U space. The RP-900 is a half rack panel cover.
Please order RTF-UF-20 to mount the antennas on the front panel.
RM-901 - 1U, Rackmount Kit for SIEM 111T and UF-20S