Networked Digital Datalink – Specifications

NDD
Networked Digital Datalink Radio
Physical Dimensions
Size 180 (l) x 85 (w) x 70 (d) mm
7.08 (l) x 3.35 (w) x 2.76 (d) in
Weight 1800 g (64 oz)
Operating Modes
Transmission Frequency Hopping Spread Spectrum (FHSS),
Direct Sequence Spread Spectrum (DSSS)
Access Control Time Division Multiple Access (TDMA),
Self-Organising TDMA, 500 slots
Interfaces
Data & Control IEEE 802.3 Ethernet (Data & Control)
Power Supply 28V DC
Synchronization TTL Pulse
Design Requirements MIL-STD 704E
Connectors
Ethernet MIL-C 38999 or MIL-C26482
Power & TTL MIL-C 38999
Radio Frequency SMA
Tunable Range
S-Band Version 300 MHz within 2.185 GHz - 2.485 GHz in
0.5 MHz steps (Extended NATO S-Band)
L-Band Version 300 MHz within 0.39 GHz -1.55 GHz in 0.5
MHz steps (Customisable)
Note Solutions are available for operation in other
frequency bands such as HF, VHF and UHF
Transmitter Section
RF Power output Maximum 23W ±10%
Programmable to ½, ¼ and 1W
Wave shaping scheme Direct Digital Synthesis (DDS)
Range 70 nautical miles A/A (130km/80 miles)
LOS (Max), without relay
Frequency Switching Digital Control
Data Rate 1 Mbit/sec (nominal)
5 Mbit/sec (max)
Receiver Section
Receiver Sensitivity <-94.5 dBm
Receiver Analog
Bandwidth		 5 MHz
Receiver Architecture Software Defined Radio
Tuning Method Digital PLL tuning
Receiver maximum
non- destructive input
power		 <15 dBm
Tuning Step 0.5 MHz
Supported Modulation
Digital Modulation Frequency shift Keying (FSK)
Gaussian Minimum Shift Keying (GMSK)
(Differential)
Quadrate Phase Shift Keying (QPSK)
Binary Phase Shift Keying (BPSK/DBPSK)
Analog Modulation AM (Amplitude Modulation)
FM (Frequency Modulation)
ECCM Features
Frequency Hopping (configurable schemes),
Direct Sequence Spread Spectrum (DSSS)
Others
Error Correction Turbo Coding
Network Capacity Dependent on update rate
Environmental
EMI-EMC MIL-STD 461 E
Shock & Vibration MIL-STD 810 E
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