The Model 4426 2U/3U from GDP Space Systems is a Digital Multi-Band RF Receiver designed to support high-performance telemetry and satellite communication applications. Available in single, dual or quad-channel configurations within a compact 2U rack-mountable chassis, this advanced receiver enables flexible deployment for a wide range of ground station and communication system architectures. Each channel operates independently and supports multiple RF bands including S-Band (2185–2485 MHz), Upper L-Band (1700–1850 MHz), Lower L-Band (1427–1545 MHz), optional P/UHF Band (100–1150 MHz) and C-Band (4400–5260 MHz), with an IF input frequency range from 100 Hz to 80 MHz.

This high-performance receiver incorporates advanced digital signal processing for fully digital demodulation and baseband bit synchronization. It supports multiple waveform formats including PCM/FM, SOQPSK, CPM, BPSK, QPSK and OQPSK, enabling compatibility with diverse telemetry and communication standards. The system provides a typical noise figure of less than 4 dB and a wide dynamic range greater than 90 dB, ensuring reliable signal reception even in challenging RF environments. The Model 4426 integrates three demodulators per channel along with dual bit synchronizers to maximize data recovery performance and operational flexibility. 

It supports data rates from 5 bps to 10 Mbps for PCM/FM signals and up to 20 Mbps for PSK-based waveforms, delivering efficient high-speed data processing for mission-critical telemetry systems. Compact and scalable, the Model 4426 Digital Multi-Band RF Receiver is ideal for satellite ground stations, telemetry reception systems, aerospace communication networks and advanced RF monitoring applications requiring high sensitivity, wideband coverage and flexible digital demodulation capabilities.