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High Cut indicator

Pat N6PAT
Pat N6PAT Member ✭✭
edited January 2020 in New Ideas
This morning I had 3 slices open and noticed that Slice A had a fluctuating power output for FT8 on any band. I confirmed this with DDUtil. Slices B and C did not have this problem.

Turns out I had high cut set to 1500 and had set FT8 for Slice A audio TX freq to 1480.  The other slices had the audio TX set to lower values so there was no problem with them. Changing the high cut to 2500 solved the issue.

I've experienced a lack of output power due to the high cut setting a few times already so I thought it would be nice to have an indicator to alert the op when the high cut was being approached or exceeded for a given slice. Then I would know right away what the issue is rather then start checking power cables, coax, etc.






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  • Martin AA6E
    Martin AA6E Member ✭✭✭
    edited January 2020
    I usually run my 6500 tx ~100 - 4000 Hz for wsjtx modes. No issues except a little variation when running ~200 Hz. Fluctuations at the 5% level are not worth worrying about. 73 Martin AA6E

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