DXing with JT 65

Made a great DX contact this afternoon to South Africa using the digital mode known as JT-65. JT65 is a digital protocol intended for Amateur Radio communication with extremely weak signals. It was designed to optimize Earth-Moon-Earth (EME) contacts on the VHF bands and conform efficiently to the established standards and procedures for such QSOs. The most popular sub-mode of JT65 is JT65A. JT65 gets ’65’ from the 65 tones it uses.

Working some JT-65 DX

The signals are usually found in the data portion of the Ham Radio Band plans between the CW (Morse) and the PSK/RTTY windows. They are always transmitted in USB mode regardless of band.

The most popular JT65A frequency is in the 20 Meter band.

  • 160m: 1838.0 kHz USB
  • 80m: 3576.0 kHz USB
  • 40m International: 7039.0 kHz USB
  • 40m USA: 7076.0 kHz USB
  • 30m: 10139.0 kHz USB.
  • 20m: 14076.0 kHz USB
  • 17m: 18102.0 kHz USB.
  • 17m Alternate: 18098.0 kHz USB
  • 12m: 24917.0 kHz USB
  • 6m EME: 50276 kHz USB
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