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QSK in V3

Igor  Rybin
Igor Rybin Member
edited March 2020 in FLEX-6000 Signature Series
In Flex 6400, QSK works for the same antenna only for version 2.49 (2.5 did not check), and starting from 3.019 only for different ones. When you turn on one antenna for reception and transmission, QSK is immediately turned off. What is the reason?


  • Lionel
    Lionel Member ✭✭✭
    edited March 2020
    I use QSK all the time on 251. Works fine at 25 to 30 same antenna. Curious about feedback on V3.
  • Sergey R5AU
    Sergey R5AU Member ✭✭
    edited July 2019
    For me looks good on my 6700 with 3.0.27 https://m.youtube.com/watch?v=Du5UdmCsC5k
  • Igor  Rybin
    Igor Rybin Member
    edited July 2019

    Problem solved! Tim explained that starting from version 2.5 there is no possibility to work with QSK on one antenna if the ATU is installed and enabled. In my case, Flex 6400 + ATU. That was the problem. When you turn off the ATU, QSK runs on a single antenna. The question is removed!
  • Mark Erbaugh
    Mark Erbaugh Member ✭✭
    edited February 2020
    This is for Tim Could you share your explanation with the entire forum? I have other radios that support QSK and it doesn’t, matter wither the ATU In enabled or disabled. Does this imply that the ATU is bypassed on normal receive? Is so, why? Thanks, 73, Mark, N8ME

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