Welcome to the new FlexRadio Community! Please review the new Community Rules and other important new Community information on the Message Board.
If you are having a problem, please refer to the product documentation or check the Help Center for known solutions.
Need technical support from FlexRadio? It's as simple as Creating a HelpDesk ticket.

6700 Frequency Instability.

 

While running WSJT-X, I noticed the waterfall was very 'wobbly' and could not decode anything. I went to WWV at 15.000,000 and found the carrier had a slow back and forth +/- 50 hz instability (see attached picture). I reset radio to factory settings, checked PSU (Astron VS-35) and then replaced with a new Samlex PSU but no change to the instability. I didn't bother trying to recalibrate because with so much frequency shifting back and forth I didn't see how that would work. Its not my antenna/coax system, as everything looks great on my IC-705, so it seems the XO or its voltage supply is the likely problem.  Any advice or is this a return to factory?

Comments

  • KD0RC
    KD0RC Member, Super Elmer Moderator

    HI Jerry, I would submit a help desk ticket.

  • Larry _ NY8T
    Larry _ NY8T Member ✭✭✭

    I experienced this with my 6700 in the past, I gave the radio a rest with power disconnected and never seen it happen again. I was told Based on the screen captures I provided, the driver oscillator (the OCXO) may be periodically failing.


  • K4QXX
    K4QXX Member ✭✭

    I had this happen several years ago with my 6700. It required a trip to Austin to fix.

  • Butch
    Butch Member ✭✭✭

    I also had this issue occur with my 6700 a few years ago. I was sent to Austin for repair. No problems since.

    KF4HR

  • Johan SE3X
    Johan SE3X Member ✭✭✭
    edited March 3

    Had mine repaired in Germany, European Service Center, a couple of years ago. It was said that this was a known problem and it wasn't to expensive to fix.

    SE3X, Johan

Leave a Comment

Rich Text Editor. To edit a paragraph's style, hit tab to get to the paragraph menu. From there you will be able to pick one style. Nothing defaults to paragraph. An inline formatting menu will show up when you select text. Hit tab to get into that menu. Some elements, such as rich link embeds, images, loading indicators, and error messages may get inserted into the editor. You may navigate to these using the arrow keys inside of the editor and delete them with the delete or backspace key.