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Predistortion Outputs?

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Butch
Butch Member ✭✭✭
edited April 2020 in Power Genius XL Amplifier
I'm curious what the two Predistortion Outputs on the back of the PG-XL are for?  Perhaps something to do with a future Adaptive Predistortion feature?  Is there a link to the PG-XL manual available yet?

Answers

  • Tim - W4TME
    Tim - W4TME Administrator, FlexRadio Employee admin
    edited April 2020
    Options
    They are an attenuated tap for RF feedback needed for adaptative pre-distortion.
    The PGXL manual is still in draft form.  It should be made publicly available in the near future.
  • Butch
    Butch Member ✭✭✭
    edited February 2018
    Options
    Tim, is the purpose of the adaptative pre-distortion feature to provide less distorted  transmit audio?
  • Tim - W4TME
    Tim - W4TME Administrator, FlexRadio Employee admin
    edited February 2018
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    It isn't just for audio as it operates on the transmitted RF.
    https://en.wikipedia.org/wiki/Predistortion
  • Butch
    Butch Member ✭✭✭
    edited February 2018
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    Where will these adaptative pre-distortion ports connect to?
  • Tom
    Tom Member ✭✭
    edited February 2018
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    Here is an interesting presentation:
    http://video.openhpsdr.org/HRF2014/PureSignal1.2.mp4

    Tom, SP7WT

  • Tim - W4TME
    Tim - W4TME Administrator, FlexRadio Employee admin
    edited February 2018
    Options
    KF4HR - an RF input on the radio
  • clare
    clare Member ✭
    Options
    [{"insert":"Add pure sig sware and a coupler and Flex would 2x their sales---Tom Ve7ATP\n"}]

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