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Multi-Gbps Space-to-Ground Communications
Multi-Gbps Space-to-Ground Communications Gigabit communication links
In addition to turnkey gigabit link assemblies, Northrop Grumman offers wideband communication components for space applications.
Northrop Grumman is a leader in the development and manufacture of gigabit-per-second Kt and Ka band communication links. The company’s proven TRL-8/9 links have been designed for high-reliability Class A missions and include full redundancy at rates up to 9.0 Gbps.
Northrop Grumman has more than three decades of experience integrating gigabit links into high performance missions. Emerging product offerings include further terminal integration, miniaturization, and standards-based channel encoding.
A high speed serial interface, an optional LVDS (low-voltage differential signaling) interface slice, Symbol Clock and Local Oscillator are also available.
Link products Product
3 Gbps Subsystem
9 Gbps Subsystem
Multirate up to 3Gbits
Multirate up to 9 Gbits
1 b/s/Hz (BEM-1)
3 b/s/Hz (BEM-3)
Frequency
Ka, Kt
Ka, Kt
Modulation
MSK
QPSK (1.5, 3.0 Gbps) 16 APSK (4.5, 9.0 Gbps)
Uncoded
RS-TCM
14” x 10” x 4”
15” x 12” x 12”
Weight
35 lbs
49 lbs
Power
91 W
74 W
Data Rate Bandwidth Efficiency
Coding Size
Modulator Assembly
32 Data, 4 Clocks Bus Power
Secondary Unit Voltages
TWTA or SSPA
Link Modulator Unit (Internally redundant)
Symbol clock
LO freq
External Frequency source (integral PC; internally redundant)
BPF
26.25 GHz or 19.5 GHz S/C Cmd/Tlm
Gimbal
Antenna
Legend: TWTA = Traveling Wave Tube Amplifier, SSPA = Solid State Power Amplifier, BPF = Bandpass Filter, LO = Local Oscillator Example Gigabit Link Subsystem
For more information, please contact: Northrop Grumman Aerospace Systems Doug Hixon 310-814-6168 •
[email protected]
www.northropgrumman.com/aerospacesystems © 2014 Northrop Grumman Systems Corporation Printed in USA Marcom Space Park 13-0635 • AS • 100 • 12/13 • 55540
