Multimedia High Speed Modem

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AMSAT DL
DJ0ABR Homepage
DD1US Homepage

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DOWNLOAD

• Versions

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FAQ:

• Frequency Tuning
  
• Raspberry
  
• Digital Voice modes
  
• QO100 Multimedia Beacon
  

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Introduction:

• Overview
  
• Technical specifications and limits
  
• Modes comparison
  
• Technical data
  
• Transceiver requirements
  
• Transmission times
  
• Modem structure

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Installation:

• Practical advice
  
• Installation Windows
  
• Installation Linux
  

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Connections:

• Transceiver Connection
  
• SDR Solutions
  
• an SBC (Raspi, Odroid..)
  
• virtual audio cable
  

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User Interface GUI:

• User Interface
  
• SETUP: Configuration
  
• BER: RX/RX test data
  
• Images: RX&TX
  
• Files: RX&TX
  
• Digital Voice (experimental)
  
• RTTY
  

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Live Data Streaming:

• Introduction
  
• Usage RX
  
• QO100 Multimedia Beacon
  

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TRX Settings:

• Transceiver
  
• ICOM: USB
  
• ICOM: Filter
  
• ICOM: Frequency
  
• ICOM: TX/RX-level
  

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using SDR Console:

• Typical Setup
  
• Virtual Audio Cable
  
• SDR Console Settings
  
• HSmodem Settings
  
• Operation in practice
  
• Operating Adalm Pluto
  

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Technical Specification
for Developers

• Physical parameters
  
• Frame Coding/Decoding
  
• Frame Format
  
• GUI Interface: UDP/IP/Initialization
  
• Data Transfer: App>Modem
  
• Data Transfer: File Format
  
• Data Transfer: Modem>App
  
• External Data Interface
  

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References:

• Wikipedia: Shannon-Hartley
  
• Shifra Error Correction
  
• libsoundio Audio Library
  
• FFTW3 Library
  
• liquid-SDR library
  
• Codec-2
  
• Microsoft Packages

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