DTRB70 RT Logic Digital Transmitter Receiver

The Kratos / RT Logic DTR70 Series Digital Transmitter Receivers support multiple IF and baseband communication functions. The signal processing is digitally implemented, allowing the board to be easily tailored to specific customer requirements. A broad range of modulation and demodulation functions have been developed that support most satellite commanding, ranging, and telemetry functions.

Current software and firmware for the DTR70 supports SGLS, USB, STDN, and TDRSS waveforms, and other customer signaling formats. This includes various PSK, PM, and FM formats, both direct and on subcarriers. The board can modulate and demodulate all supported signals, which provides transmit and receive capabilities, and loopback testing. The PCI Mezzanine Card (PMC) is designed for use in PCI, cPCI, and VME systems. The DTR-70 is used in Kratos / RT Logic-s Telemetrix 70/70 systems (T70/70) for satellite ground station operations and satellite testing, although it is a general purpose communications board that can support many communications applications.

The DTR-70 is manufactured in two implementations: DTRB-70 and DTRD-70. It provides both baseband and IF inputs and outputs. The DTRD-70 replaces the baseband input with a second IF input for diversity combining. The signal processing is performed in the Field-Programmable Gate Array (FPGA). Digital signal processing provides tremendous accuracy, capability, and repeatability. The FPGA is loaded over the PCI bus, which allows different personalities to be loaded for different applications. Kratos / RT Logic can manufacture existing firmware application personalities or develop new ones for specific customer requirements.