JT9

From Signal Identification Wiki
Jump to: navigation, search

JT9
JT9.png
Frequencies 3.578 MHz,28.079 MHz
Frequency Range 3.578 MHz - 28.079 MHz
Mode USB
Modulation MFSK
ACF
Bandwidth 20 Hz
Location Worldwide
Short Description JT9 is a very narrow 9-FSK mode for making contact (QSO's) under extreme weak-signal conditions.
I/Q Raw Recording
Audio Sample

JT9 is a very narrow 9-FSKFrequency-Shift Keying mode for making contact (QSO's) under extreme weak-signal conditions. JT9 is about 2 dBThe decibel (dB) is a logarithmic unit used to express the ratio of two values of a physical quantity, here the strength of a received signal. more sensitive than JT65A while using less than 10% of the bandwidth.


Frequencies[edit]

  • 3578-3579 kHzKiloHertz (kHz) 10^3 Hz
  • 7078-7079 kHzKiloHertz (kHz) 10^3 Hz
  • 14078-14079 kHzKiloHertz (kHz) 10^3 Hz
  • 21078-21079 kHzKiloHertz (kHz) 10^3 Hz
  • 28078-28079 kHzKiloHertz (kHz) 10^3 Hz

Decoding Software[edit]

Hobby Level Software

Video Examples[edit]

Additional Links[edit]



Additional Images[edit]