ARQ-M4-342

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ARQAutomatic Repeat reQuestAutomatic Repeat Query-M Series: ARQ-M2-242 - ARQ-M2-342 - ARQ-M4-242 - ARQAutomatic Repeat reQuestAutomatic Repeat Query-M4-342 
ARQAutomatic Repeat reQuestAutomatic Repeat Query-M4-342
ARQ-M4-342.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 600 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).0.6 kHzKiloHertz (kHz) 10^3 Hz
6.0e-4 MHzMegaHertz (MHz) 10^6 Hz
0.6 kHzKiloHertz (kHz) 10^3 Hz
6.0e-4 MHzMegaHertz (MHz) 10^6 Hz
0.6 kHzKiloHertz (kHz) 10^3 Hz
6.0e-4 MHzMegaHertz (MHz) 10^6 Hz
Location Worldwide
Short Description ARQAutomatic Repeat reQuestAutomatic Repeat Query-M4-342 (Also known as TDM 342, TDM-4, 192-TDM, and ARQAutomatic Repeat reQuestAutomatic Repeat Query-56) is a four-channel time division multiplexed telex system. This is the CCIRComité Consultatif International pour la Radio (Predecessor of the ITU-R) 342 standard version. Used in Aeronautical, Maritime, and Point-to-Point services.
I/Q Raw Recording
Audio Sample
ARQAutomatic Repeat reQuestAutomatic Repeat Query-M4-342 (Also known as TDM 342, TDM-4, 192-TDM, and ARQAutomatic Repeat reQuestAutomatic Repeat Query-56) is a four-channel time division multiplexed telex system. This is the CCIRComité Consultatif International pour la Radio (Predecessor of the ITU-R) 342 standard version. Used in Aeronautical, Maritime, and Point-to-Point services. This mode has been used by Chinese, Vietnamese and Spanish embassies, along with some French Military Forces stations.

ARQAutomatic Repeat reQuestAutomatic Repeat Query-M stands for Automatic Repeat reQuest, Multiplex, and as such, has a time-division based multiplex of two channels using ITA-3 7-bit encoding. FSKFrequency-Shift Keying shift of 400 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz)..

Uses 87 BdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second., 96 BdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second., 172 BdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second., 192 BdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second., or 200 BdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second..


Decoding Software[edit]

Professional Equipment/Software
  • Hoka Code 300-32
  • Shoc go2decode
  • Shoc go2monitor
  • Wavecom W-Code
  • Wavecom W-Spectra

Video Examples[edit]

Additional Links[edit]

Additional Images[edit]