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Should the power button stay illuminated on my 6600M after installing a GPSDO?

The installation was successful and everything seems to be working correctly.

Best Answers

  • Mike-VA3MW
    Mike-VA3MW Administrator, FlexRadio Employee, Community Manager, Super Elmer, Moderator admin
    Accepted Answer

    Yes. The colours are explained in the SmartSDR manual, but as long as it is getting a valid GPS signal, you will have a Blue button.


    • FLASHING GREEN: Radio is starting or shutting down 

    • SOLID GREEN: Radio is in receive mode 

    • FLASHING RED: See Error Conditions below 

    • SOLID BRIGHT RED: Transmitting on PA 

    • SOLID DIM RED: Transmit engaged, but transmit interlocks are not ready. Refer to the SmartSDR documentation for description of the transmit interlocks. 

    • SOLID ORANGE: Transmitting on XVTR port with low power 

    • SOLID PURPLE: Radio is performing a software update 

    • FLASHING WHITE: Radio is performing a reset to factory defaults 

    • OFF: Radio is off 


    When the optional GPS Disciplined Oscillator is installed:

    • SOLID AMBER: Radio is off, GPSDO is powered for stability 

    • FLASHING YELLOW: GPSDO is warming up 

    • SOLID YELLOW: GPSDO is “holdover” mode (has lost satellites) 

    • SHORT FLASH BLUE: GPSDO is locking 

    • LONG FLASH BLUE: GPSDO is in “hold phase” mode 

    • SOLID BLUE: GPSDO is locked 

  • Bill Boedeker
    Bill Boedeker Member
    Accepted Answer
    Thank you Mike. I had only read the installation instructions and the 6600M manuals.

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