DUP-ARQ-2

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 DUP-ARQ - DUP-ARQAutomatic Repeat reQuestAutomatic Repeat Query-2 - DUP-FEC-2 
DUP-ARQAutomatic Repeat reQuestAutomatic Repeat Query-2
DUP ARQ-2.jpg
Frequencies 3 MHzMegaHertz (MHz) 10^6 Hz3,000,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
3,000 kHzKiloHertz (kHz) 10^3 Hz
,30 MHzMegaHertz (MHz) 10^6 Hz30,000,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
30,000 kHzKiloHertz (kHz) 10^3 Hz
3,000 kHzKiloHertz (kHz) 10^3 Hz
MHzMegaHertz (MHz) 10^6 Hz
30,000 kHzKiloHertz (kHz) 10^3 Hz
30 MHzMegaHertz (MHz) 10^6 Hz
Frequency Range MHzMegaHertz (MHz) 10^6 Hz3,000,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
3,000 kHzKiloHertz (kHz) 10^3 Hz
- 30 MHzMegaHertz (MHz) 10^6 Hz30,000,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
30,000 kHzKiloHertz (kHz) 10^3 Hz
Mode USBUpper Side Band Modulation (Radio, referring to reception and modulation mode)Universal Serial Bus (Computer, referring to USB Ports and cables)
Modulation FSKFrequency-Shift Keying
ACFAutoCorrelation Function
Bandwidth 1.3 kHzKiloHertz (kHz) 10^3 Hz1,300 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
0.0013 MHzMegaHertz (MHz) 10^6 Hz
1.3 kHzKiloHertz (kHz) 10^3 Hz
0.0013 MHzMegaHertz (MHz) 10^6 Hz
1.3 kHzKiloHertz (kHz) 10^3 Hz
0.0013 MHzMegaHertz (MHz) 10^6 Hz
Location Worldwide
Short Description DUP-ARQAutomatic Repeat reQuestAutomatic Repeat Query-2 (also known as ARTRAC II) is a further development of the DUP-ARQAutomatic Repeat reQuestAutomatic Repeat Query system and the system characteristics are very similar. DUP-ARQAutomatic Repeat reQuestAutomatic Repeat Query-2 allows transmission of ITA-2 (Baudot) or ITA-5 (ASCII) characters depending on the application.
I/Q Raw Recording
Audio Sample
DUP-ARQAutomatic Repeat reQuestAutomatic Repeat Query-2 (also known as ARTRAC II) is a further development of the DUP-ARQ system and the system characteristics are very similar. DUP-ARQAutomatic Repeat reQuestAutomatic Repeat Query-2 allows transmission of ITA-2 (Baudot) or ITA-5 (ASCII) characters depending on the application. DUP-ARQAutomatic Repeat reQuestAutomatic Repeat Query-2 is twice as fast as DUP-ARQAutomatic Repeat reQuestAutomatic Repeat Query, running at 250 BdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second.. Norway was a major user of DUP-ARQAutomatic Repeat reQuestAutomatic Repeat Query-2


Decoding Software[edit]

Professional Equipment/Software
  • Wavecom W-Code
  • Wavecom W-Spectra

Additional Links[edit]


Additional Images[edit]