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.

FLEX 6500 OVERSHOOT TO transverter

Doug Allen
Doug Allen Member ✭✭
edited August 2020 in FLEX-6000 Signature Series
The FLEX 6500 is configured  and works well with my Elecraft 2M XVTR at 0 dBm input to the Elecraft, but there is bad bad OVERSHHOOT at all settings I've tried.  This overdrives the XVTR well beyond specs for a fraction of a second at the beginning of any DIGU or SSB transmission.  I'm afraid for the safety of my transverter and afraid to use my 150 watt brick which will also be dangerously overdriven by the XVTR.  I've tried the DAX TX streaming and WINDOWS soundcard DAX TX audio levels, but haven't been able to correct the problem.  
If I can solve this problem I'll be able to run more than 20 watts in the CQWW VHF contest this weekend.  Any similar experience or ideas?

Doug K4LY

Comments

  • Sergey R5AU
    Sergey R5AU Member ✭✭
    edited July 2019
    Doug can you show details with value? I am utilize 3 transverter by DEMI with my 6700 without overshoot issue. BTW no changes in transverter setup within transition between SSDR versions 1-2-3
  • Ken - NM9P
    Ken - NM9P Member ✭✭✭
    edited June 2020
    Control the drive to the transverter in the Transverter Setup tab. You can define a maximum drive level. Save it in your TX Profile. You can also control the transverter drive via the power output slider in the transmit control panel of SSDR. But setting a maximum drive in the transverter setup is safer. In V.3, there is a new TX setup form where you can set individual power maximum levels for each band, then save the whole chart as part of a TX Profile.
  • dlwarnberg
    dlwarnberg Member ✭✭
    edited July 2019
    Ken has it right... check you XVTR settings also what are the jumper settings for your transverter?  I have two 144 and 432 and no overshoot problem.. here are my settings to help




  • Doug Allen
    Doug Allen Member ✭✭
    edited September 2019
    Thanks David,
      My settings are the same as yours above, and i have the Elecraft JP jumpers set for 1 milliwatt.  It works FB except for the overshoot which may be related to my Mic Steam driver error and the wrong setting of DAX Reserved Audio RX 1 which is the only choice i can get to work.
    BTW, I have the 222 and 432 Elecraft transverters and hope I can get them working with the Flex 6500

    Doug K4LY
  • dlwarnberg
    dlwarnberg Member ✭✭
    edited July 2019
    Doug, they work well.. I use mine for Sat work and no issues. 
  • Doug Allen
    Doug Allen Member ✭✭
    edited September 2019
    Thanks for feed back. I have come to the conclusion that there is no significant Flex overshoot problem and that the problem is in my Elecraft transverter.

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.