Image of General Dynamics - X-Band High Rate Mission Data Transmitter (HRT-440) on the satsearch marketplace

Key highlights

The General Dynamics X-Band High Rate Mission Data Transmitter (HRT-440) is an X-band/Ka-band/Ku-band transmitter that uses CCSDS Low Density Parity Check (LDPC) code to maximise the data downlink.

The Shannon theoretical limit for channel capacity is approached by the system performance due to the underlying CCDS LDPC code. SQPSK modulation at the X-band frequency of 8.2 GHz is the standard operation of the system while customization available for Tracking and Data Relay Satellite System (TDRSS) operations at Ku-Band or Ka-Band.

ASIC, FPGA and GaAs MMIC technology used in the HRT-440 are space-qualified and radiation-hardened. The product implementation is based on the space-proven design techniques resulting in high reliability and performance.

The system features a low power and level-controlled output which makes it be suitable for driving power amplifiers. For powering the downlink antenna, a 15 Watt solid state power amplifier (SSPA) can also be provided as an option.

Key features

SQPSK modulation
Optional dual-data rate capability
Data rates can be custom ordered
Option for Ka Band output
Built-in commandable test patterns
223 - 1 PN pattern included
Forward Error Correction Coding
CCSDS (8160,7136) LDPC
Optional Codes - CCSDS Reed-Solomon - Convolutional Encoding
Redundant 8-bit parallel LVDS data interfaces
Output source clock for synchronous operation
Redundant 8-bit Serial Command and Telemetry
DRO/TCXO frequency source
Internal level controlled output for driving phased-array antenna or high-power amplifier - optional 15 W SSPA available

Customization

Customizable for Ku-band, Ka-band and X-band outputs.
15 Watt solid state power amplifier (SSPA) can also be provided optionally.
Data rates can be custom ordered.

Disclaimer: satsearch is not responsible for any mistakes on this page, although we do our best to ensure correctness. Please report any mistakes to us.

Last updated: 2022-02-28

General Dynamics