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FT8 works FT4 Does Not


 

Hello,

I am new to digital HF. I am using an early FT-817 with W-SJTX or JSTX and experience the same issue, that has me stumped. I am able to use FT8 without any issue, but FT4 just does not work. I have tried changing settings and levels, with no success. The interface is Rigblaster Plug And Play (6 pin data jack) with USB soundcard.

I am using the following:
PKT RATE 1200
DIG MODE USER-U
DIG DISP 0
DIG MIC 12
DIG SHIFT 0


I saw a post where someone said to adjust menu #55 USB offset, but my radio goes to #51.

Any wisdom on this would be appreciated.

Thanks,

Marc

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