ICOM-7300 -FT8 Issue of USB-D going to USB on transmit

[Peter Wolczko]

Lately, while on FT8, the mode SSB mode changes on it’s own, when the 7300 goes from receive to transmit. The USB-D  changes to USB. I have to manually reset the mode to USB-D during transmit.  No clue as to what may be causing this problem.

Any ideas of what it might be?

Thank you,

73, Peter  KC1FNF

 

[Fred Kemmerer]

Hi Peter,

You might check all of the transceiver interface settings in WSJT-X. Make sure you are using “fake-it” and that WSJT-X is configured for the IC-7300 and you are using the CAT interface for PTT. Also, make sure that the Mode setting is set for “Data/Pkt”. You should also be using 8 data bits, one stop bit, and no handshake. Finally, make sure that you are not forcing any of the control lines.

You should also check that you don’t have any other software (loggers, etc.) that is trying to interact with the radio at the same time. The best way to test for this is to stop all programs that might be using the radio EXCEPT for WSJT-X and see if the problem is still there. If it goes away, then you probably have another program trying to manipulate the radio at the same time as WSJT-X.

I hope that this helps.

[Peter Wolczko]

FRED,

Your information solved my ICOM-7300-FT8 problem.  Fantastic!

I had  to change the following on WSJT-X:

Radio Settings             From                   To

Data Bits                            Default                   8

Stop Bits                            Default                    1

Handshake                        Default                  None

I just confirmed that I had it corrected,  as I made contact in Colorado and the software did it all.

Many thanks,

73, Peter  KC1FNF

[Tom Mahon]

Check your Connectors settings on screen 2/4 DATA OFF MOD set to MIC and DATA MOD screen 3/4 set to USB.

Tom Mahon
AB1NS

[Peter Wolczko]

Tom,

I appreciate the info.  I verified  that I now have all of the correct settings. Those settings you referred to were set, as I had checked previously.

I now have FT8 working as it should.

Thank you very much.

73,  Peter   KC1FNF

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