Hi Gene, Sorry I am rather late to this thread but which ICOM radio are you using ? On most early ICOM radios, the IC-V commands do not have a provision to directly change the frequency in the

I have been running Linux WSJT-X on a Ubuntu machine for several months, with excellent results. Recently, WSJT-X stopped decodes, even though there are very good signal showing in the waterfall. I am

Hi Gene, all CAT QSY commands are to an absolute frequency, but WSJT-X does monitor the current frequency and calculates the split offset based on that. Therefore incorrect or corrupt frequency

There are ferrites on the USB cable, but that is probably irrelevant because there is no RF being sent. This is only occurring when changing the TX offset. During all other activities, including

Long explanation, see page 78 of the current manual. 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist, RFI ARRL Asst. Director, NW Division,

Hi Dick, the WSJT-X User Guide has the answer to that. https://physics.princeton.edu/pulsar/k1jt/wsjtx-doc/wsjtx-main-2.4.0.html#_ap_decoding 73 Bill G4WJS.

In following window, what is the meaning of the "a1" and the "?" which is shown on some lines on the right side? Thanks and 73, Dick,, KD4S

Thanks Bill. I will try that. Kind regards - Terry

Gene, it was only a suggestion, CI-V Transceive Mode causes the rig to emit unsolicited CAT traffic which can collide with commands from a PC, that can result in very strange

Gene: You haven't said how you're implementing the CAT control of the 7300 but if it's CI-V via the 7300's USB port then you'll need to ensure that there's no RF getting into the USB connection - that

> make sure you have "CI-V Transceive Mode" disabled on your IC-7300 Makes no difference. Out of curiosity how would this effect the commands WSJT-X is sending out and how would this make the rig

For general HF work I choose to call CQ in the time slot with the strongest signals. There is a benefit to having all the RX signals near the same level without one or more big signals in your RX. Bob

Thanks

Hi Gene, make sure you have "CI-V Transceive Mode" disabled on your IC-7300. 73 Bill G4WJS.

7300 when in Rig split mode only. No problem all other modes. V2.4.0 When changing the TX offset frequency enough to require a change in the split frequency occasionally the base frequency will

There will always be a frequency change, as the frequencies of the FT4 'areas' are different from the FT8 areas. As far as why its missing, have you tied doing a Frequency List reset?

Hi Jack, FT8 and FT4 use different transmit periods so are not compatible, they are used in different frequency sub-bands. The WSJT-X "Settings->Frequencies->Working Frequencies" table defines the

When switching from FT8 to FT4 (under the Mode pulldown), I get a different set of frequencies and there is no choice for 14.080. In fact there is no 20M choice at all. What am I doing wrong? Jack

Bill - Thanks for the input. The sound card has analog audio out (of course) but I don't know how much, if any amplification, it has. I modified my settings by decreasing the KX3 mic gain to 10, and

Hi Terry, you can diagnose which end the problem lies by using the test application message_aggregator that ships with WSJT-X. Run that with two instances of WSJT-X and use it to initiate QSOs to see