Collins Naval Military Antenna Coupler CU-1134 AN/SRA-33A SRA-33 Ham Radio Rare For Sale

Part of a very old and incredibly large setup, CU-1134/SRA-33 Antenna coupler in fair condition. I have no means of testing this, therefore as is and assume a little work may need to be done. Very heavy and feels complete given weight. I have many of these as reference for sale. I also have other pieces that go with this listed as well. Please see photos for additional details and reach out with any questions you may have. ThanksGenerated description (unverified)The CU-1134/SRA-33 is a component of the AN/SRA-33 antenna coupler group, designed for UHF (225–400 MHz) shipboard communications. Developed by Rockwell Collins in collaboration with Naval Electronic Systems, this system enables up to four transmitters and receivers to operate simultaneously through a single broadband antenna, optimizing space and efficiency aboard naval vessels.
The AN/SRA-33 system comprises four antenna couplers (CU-1131/SRA-33 through CU-1134/SRA-33), a control power supply (C-4586/SRA-33), an electronic equipment cabinet (CY-3852/SRA-33), and specialized cables. It is primarily designed to interface with shipboard radio sets like the AN/WSC-3Each coupler in the system provides isolation between transmitters, incorporates tunable bandpass filters to suppress harmonic and spurious outputs, and includes matching networks to reduce antenna impedance, ensuring efficient and interference-free operation.For modern applications, the OA-9123/SRC multicoupler serves as a state-of-the-art replacement for the AN/SRA-33, offering similar functionality with reduced space requirements