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flex 3000 PA

Hi all finally got my Flex-3000 up and running on DM-780, I only intend to use my radio for digital modes RTTY, PSK-31 and the likes.

Just wondering if the PA in these radio's are good enough to transmit full duty cycles for long periods, not constant but you know what I mean send a macro and then wait for a reply and so on.

I run a max of 30-40 watts in the digital modes.

any info would be good thanks

Keith M1VHT


  • Bill -VA3WTB
    Bill -VA3WTB Member ✭✭✭
    edited February 2018
    It is fine to run full duty at a 100W, The fan will speed up as it needs to. The amp is protected from over temp anyway. Have fun, that's a great radio.
  • Keith Morrison
    edited July 2017

    Excellent to hear thank you for your reply.

    73 Keith

  • Tim - W4TME
    Tim - W4TME Administrator, FlexRadio Employee admin
    edited March 2017
    As per the FLEX-3000 specifications, the PA in the FLEX-3000 is a 100w nominal class AB full duty cycle RF power amp operating on the 160-6m ham bands. Operating full duty cycle high power digital modes, like RTTY should present no problem with the FLEX-3000.  The fans will ramp up to cool the PA heat sink as necessary.
  • Keith Morrison
    edited July 2017

    Thank you

    73 Keith

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