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Multiple Participant Airborne S-Band TDMA data link with up to 400 slots per second.
Transmission rate is up to
625KB/sec.
A data link built for 20 airborne
participants includes 200 time slots per second. This enables each
participant to broadcast 300 bytes of useful information 10
times per second (Hz).
Using standard airborne omni directional antenna, the DataLink has
a useful range of 60-70NM range. Ground station with high gain
antennas achieves ranges exceeding 120NM.
The system includes a Pentium M based computer, a
data link modem, and a 50Watt FM transceiver.
Computer PCM (NRZ-L) data pulses are transmitted in selected time-slots. Demodulated bit streams from the FM receiver are processed by BES Systems' digital
Bit-Synchronizer and handed over to the application program in the host
computer.
The system interfaces with aircraft Mission
Computer via MIL-STD-1553 or Ethernet bus.
A sound blaster board is
capable to output audio messages to plane intercommunication system.
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Frequency Band: |
2.2-2.35GHz (32
frequencies in 100MHz Band) |
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- Transmitter power: |
>
45Watt |
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Data modulation: |
PCM NRZ-L |
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Transmission: |
up to 714Kbit/sec |
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Typical bits per slots: |
2500 bits |
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Slots per second: |
100-400 time slots. |
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Receiver sensitivity: |
-94dBm at E/N = 18dB. |
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Control |
1553 or RS-422 |
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Members |
Up to 100 |
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