Chinese 4+4

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Chinese 4+4
CHN 4+4.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 PSKPhase-Shift Keying
ACF
Bandwidth 2500 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).2.5 kHzKiloHertz (kHz) 10^3 Hz
0.0025 MHzMegaHertz (MHz) 10^6 Hz
2.5 kHzKiloHertz (kHz) 10^3 Hz
0.0025 MHzMegaHertz (MHz) 10^6 Hz
2.5 kHzKiloHertz (kHz) 10^3 Hz
0.0025 MHzMegaHertz (MHz) 10^6 Hz
Location China
Short Description Chinese 4+4, also known as 4+4 or PRC 4+4, is a multi-carrier transmission mode. It used by Chinese Diplomatic services with most traffic originating from Beijing, China.
I/Q Raw Recording
Audio Sample
Chinese 4+4, also known as 4+4 or PRC 4+4, is a multi-carrier transmission mode. It used by Chinese Diplomatic services with most traffic originating from Beijing, China.

Characteristics[edit]

It consists of 8 carriers. They are 300 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). apart, except the 4th and 5th carriers, which are 450 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). apart from each other.

Samples[edit]

4+4 Idle

4+4 Traffic

Frequencies[edit]

Frequencies spotted at:

  • 4433 kHzKiloHertz (kHz) 10^3 Hz
  • 7671 kHzKiloHertz (kHz) 10^3 Hz
  • 8076 kHzKiloHertz (kHz) 10^3 Hz
  • 10314 kHzKiloHertz (kHz) 10^3 Hz
  • 10729 kHzKiloHertz (kHz) 10^3 Hz
  • 10845 kHzKiloHertz (kHz) 10^3 Hz


Decoding Software[edit]

Professional Equipment/Software

Additional Links[edit]