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Mike Member ✭✭
edited April 2022 in Third-Party Software

I've noticed something now on 40m and I am not sure if it is a radio oddity or mode oddity. When I qsy to 40m, in particular 7074 for FT8. I sometimes see transmissions on 7078 with the exact same timing as FT8. I know there are alternate freq to use if you are the rare DX and figure that might be what is afoot. When I change freq to 7078 then the transmissions seem to disappear. Other times some of the signals remain but do not decode.

Am I experiencing some weird ghost effect and it is an actual rig problem or am I missing something and it is some strange mode that uses FT8 timing that I am unaware of at this time.

For the record, Using a Flex 6600, 2.7.6 software, Win 10.


  • Martin AA6E
    Martin AA6E Member ✭✭✭

    People should back off their audio drive! A 2 kHz ft8 Tx signal can also appear at 4 kHz or other harmonic if there is audio overdrive/distortion. Not decodeable because channel spacing is wrong.

    73 Martin AA6E

  • Bill NE1B
    Bill NE1B Member ✭✭✭

    7078 is a JS8Call frequency.


    Bill, NE1B

  • Mike
    Mike Member ✭✭

    Thanks Bill. That is probably what I am seeing then that isn't decoding.

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