AOR ARD9800 Operating Manual page 3

Features:
Digital voice communications using existing analog 2 way radios. The ARD9800
uses the same audio frequencies (300 Hz ~ 2500 Hz) as microphone audio to
modulate the voice signal. This allows you to use an analog radio as a digital voice
transceiver.
Digital voice communications in the Single Side Band (SSB) mode. The automatic
frequency clarifier function adjusts frequency drift automatically in the SSB mode.
(Approximately up to +/- 125 Hz). Utilizes the ODFM (Multi Carrier Modulation)
circuit that is effective against Multi-path or Selective Fading.
Automatic digital receive. Automatic voice signal detector recognizes the received
signal as analog or digital, automatically switching to the appropriate mode.
Digital Slow Scan TV (SSTV). Built-in video capture function (NTSC or PAL
depending on version). Compresses the signal into our original adaptive JPEG. Send
and receive images (similar to analog slow scan TV, but higher resolution) in the
Digital mode. Built-in video output connector (NTSC or PAL depending on version)
allows viewing the picture on an external monitor.
Built-in high grade Vocoder (AMBE). Uses high grade digital voice compression to
deliver quality digital voice communications.
Built-in FEC error correction. A powerful error correction circuit delivers stable and
reliable communications.
Data communications on the HF band Data communication is possible on the HF
(High frequency) bands at no extra cost. (Speed may be limited by regulations in
certain jurisdictions.)
Small and compact unit. Easy to operate. Simply connect the ARD9800 to the
microphone jack. No complicated or risky radio modifications are necessary.
Utilizes a uniquely designed high performance DSP (Digital Signal Processor)
engine.
Battery operation possible for field use.
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