HP 842264-001 CA Antenna 18.5 is a replacement part identified for the RPOS15 system. Its listing name, SPS-RP9 CA Antenna 18.5 RPOS15, ties the part number to this antenna and the system it is intended for.
The antenna is a service part for restoring or replacing the corresponding component in an RPOS15 setup. The listing identifies it as part number 842264-001 and describes it specifically as a CA antenna, helping distinguish it from other antenna parts.
This description covers the identified antenna and its stated RPOS15 association; the listing does not provide further technical details about construction or package contents.