DUP-FEC-2

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 DUP-ARQ - DUP-ARQ-2 - DUP-FECForward Error Correction-2 
DUP-FECForward Error Correction-2
DUP FEC-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 1.1 kHzKiloHertz (kHz) 10^3 Hz1,100 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
0.0011 MHzMegaHertz (MHz) 10^6 Hz
1.1 kHzKiloHertz (kHz) 10^3 Hz
0.0011 MHzMegaHertz (MHz) 10^6 Hz
1.1 kHzKiloHertz (kHz) 10^3 Hz
0.0011 MHzMegaHertz (MHz) 10^6 Hz
Location Worldwide
Short Description DUP-FECForward Error Correction-2 is a further development of the DUP-ARQAutomatic Repeat reQuestAutomatic Repeat Query system and the system characteristics are very similar. Uses FECForward Error Correction instead of ARQAutomatic Repeat reQuestAutomatic Repeat Query and runs at either 125 bdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. or 250 bdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second..
I/Q Raw Recording
Audio Sample
DUP-FECForward Error Correction-2 is a further development of the DUP-ARQ system and the system characteristics are very similar. Uses FECForward Error Correction instead of ARQAutomatic Repeat reQuestAutomatic Repeat Query and runs at either 125 bdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. or 250 bdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second.. Like DUP-ARQ-2, DUP-FECForward Error Correction-2 allows transmission of ITA-2 (Baudot) or ITA-5 (ASCII) characters.


Decoding Software[edit]

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

Additional Links[edit]

Additional Images[edit]