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ARD9800 Specifications


Modulation Method: OFDM (Orthogonal frequency-division multiplexing)
Bandwidth: 300 Hz to 2500 Hz, 36 carriers
Symbol Rate: 20 ms (50 baud)
Guard Interval: 4 ms
Tone Steps: 62.5 Hz
Modulation Method: 36 carriers DQPSK (3.6k)
AFC: ± 125 Hz
Error Correction Voice: Golay + Hamming
Error Correction Video/Data: Covolution + Reed-Soloman
Header: 1 Sec. 3 tones + BPSK training pattern for synchronization.
Digital Voice: AMBE2020 coder, decoder
Signal Detection: Automatic detection and switching between analog and mode and digital mode.
Video Compression: AOR original adaptive JPEG
Video: NTSC Input/Output
Serial Port: RS-232C, 9600 bps, asynchronous
Power Requirement: 10 to 16 VDC (200 mA at 12 V DC)
Connectors: Radio: Microphone Output, PTT Push
  Speaker: Input
  Video In/Out NTSC 1V p-p (75 ohm)
Switches: Analog/Digital Switch
  Video capture/transmit switch
Size: 100x32x158 mm
  Specifications are subject to change.

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