WSJT-X Unable to transmit

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  • Question
  • Updated 3 years ago
  • Answered
I have WSJT-X 1.7 configured to connect and work with SmartSDR 1.10.15 and a 6700

When WSJT-X goes in to transmit mode:
  • 6700 keys up (green LED goes red)
  • DAX Control Panel TX button is Blue and the meter is showing audio present 
  • SmartSDR P/CW panel shows the correct level i.e. right carat just below 0 and audio on the level meter, DAX button blue
  • If I turn on monitor I can hear the JT65 tones
However, I am getting zero RF power not matter to what I set the RF Level in SmartSDR

Some smart SDR info: Mode is DIGU (I also tried USB), Passband 3K

Note I can transmit no problem using my PR-781

I have rebooted both computer and radio multiple time

Any help appreciated


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Posted 3 years ago

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Photo of YV5WZ


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Do you Check This?

Photo of Bill W2PKY

Bill W2PKY

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Official Response
Check the Low and High Cut settings, should be 0-4000
Photo of W9TVX


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That was it, and it makes perfect sense!   I was fixated on the pass band envelope under RX and failed to see the TX low cut and high cut. 

Thank you!

Photo of David Livingston

David Livingston

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You may have to setup a PTT in CAT. I don't know your total setup...
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Phil m0vse

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This is where the 'fake-it' split setting in wsjt-x is useful as on transmit it automatically moves frequency so that the transmitted tones are around 1.5khz, well within the usual TX passband.
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Tony WV2C

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Flex 6500..Same issue here still unable to get power output. Works fine on JT65, no issues

Any other suggestions?  

Photo of NX6D Dave

NX6D Dave

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There is a defect registered on the code for occasional drop-outs similar to what you are reporting.  This may not explain what you are seeing, but if it does, it's on the list to investigate and deal with.