CQL-736 is a part of the Polam-Elta family of multi-band communication receivers used by the Polish Armed Forces. It is an air combat radio system, providing VHF/UHF communication and navigation services. The system includes a transceiver, control module, and antennas. The transceiver is capable of transmitting and receiving signals over a broad frequency range in both narrow- and wide-band modes. It is capable of providing secure transmission of voice and data messages, allowing for secure communication between aircraft and ground stations. It can also be used for navigation and emergency location services, allowing pilots to pinpoint their position in case of distress.