Max Power when Running MSK144

  • 1
  • Question
  • Updated 2 years ago
  • Answered
Thinking of running MSK144 during FD if 6m is slow. What is the maximum power I can run with my Flex 6500. Duty cycle is 15 seconds on and 15 seconds off.
Photo of John K4SQC

John K4SQC

  • 25 Posts
  • 1 Reply Like

Posted 2 years ago

  • 1
Photo of David Warnberg

David Warnberg

  • 698 Posts
  • 91 Reply Likes
I would assume it would be like any other digital mode... The flex has a thermal protection circuit so run 100 watts if you want.. just like WSJT-X

Sure others will correct me if I'm wrong
Photo of Ken - NM9P

Ken - NM9P

  • 4239 Posts
  • 1351 Reply Likes
i run up to full power on that mode.
Just be sure that you are not over-driving the audio circuit.

 (Adjust power level in WSJT-X or on the DAX TX slider to prevent going into the red.  Actually I run it just a notch or two under the red and get between 80-100 Watts out, depending upon the band.)

After a long digital session with my 6500, sometimes the cooling fan shifts to "hurricane mode" and moves a lot of air, noisily.  Most of the time, the fans on my 6500 are pretty quiet, if I keep them clean.

Ken - NM9P
Photo of AH0U


  • 351 Posts
  • 52 Reply Likes
I run full power too and even on PSK31 and only on long winded exchanges does the fan go to high speed but other than that, no problems