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Flex 6300 to HL-1.5KFX connection

Doug Seyler
Doug Seyler Member ✭✭
edited January 2018 in FLEX-6000 Signature Series
I just received the Flex-6300. It works well on normal power. However, when I hook it up to my THP HL-1.5KFX (ALC and PTT) it doesn't seem to key the amp. I am running the amp in manual mode for band. I have used this amp successfully with an Icom 756 so I know that it works. Any suggestions/hidden menu selections?




  • Jim K4JAF
    Jim K4JAF Member ✭✭
    edited January 2018
    Have you gone into the settings menu and enabled the amp keying relay?  Settings on top left of the screen.  Jim K4JAF
  • Howard -W6HDG
    Howard -W6HDG Member
    edited September 2015
    I made the same error with the 6300. Flex (foolishly?) paired the ALC with PTT in. The amp keying RCA is on the opposite pair of RCA's on the chassis.
  • Doug Seyler
    Doug Seyler Member ✭✭
    edited August 2015

    Thanks, that did the trick. The naming of the connections is very unintuitive!

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