Welcome to the JT65A Digital Mode for High Frequency Weak Signal Communications.

I started using JT65A (click to hear what JT65 sounds like) on HF and it feels a bit odd but I can understand why it has become so popular, even addictive. It takes up little band space and doesn't interfere with other band users unlike other digital modes.

Picture from NW7US

JT65 Software

JT65 Bandplan

The JT65 frequency 20 meters 14076.0 kHz USB VFO
The JT65a sync frequency is 14077.27 kHz.
The JT65 signal frequency is about 14077.3 to 14077.7 kHz

The JT65A frequency 30 meters is 10139.0 kHz USB VFO
The JT65a sync frequency is 10140.27 kHz
The JT65 signal frequency is about 10140.3 to 10140.7 kHz

International JT65A frequency 40meter is 7039.0 kHz USB VFO.
The International JT65A sync frequency is 7040.27 kHz
The JT65A signal frequency is about 7040.3 to 7040.7 kHz

The JT65A frequency 17 meters 18102.0 kHz USB VFO
The JT65A sync frequency is 18103.27 kHz
The JT65A signal frequency is about 18103.3 to 18103.7 kHz

The JT65A alternate frequency 17 meters is 18098.0 kHz USB VFO

The JT65A frequency 12 meters is 24917.0 kHz USB VFO
The JT65A sync frequency is 24918.27 kHz
 

All you need to know about JT65 curiosity of WSJT

How much power do you really need to transmit, with JT65A? Here is a calculator to help you figure that out, based on the reports you receive from other JT65A stations.

 

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