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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) -- Optional memory module (VM9800) required
Built-in video capture function (NTSC). Compresses the signal into our original adaptive JPEG format.
Send and receive images (similar to analog slow scan TV) in the Digital mode. Built-in video output
connector (NTSC) allows viewing the picture on an external monitor.
Built–in high grade Vocoder (AMBE)
Utilizing high grade digital voice compression; delivers 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 for field use.
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