Welcome to the new FlexRadio Community! Please review the new Community Rules and other important new Community information on the Message Board.
Need the latest SmartSDR, Power Genius, Tuner Genius and Antenna Genius Software?

SmartSDR v3.8.19 and the SmartSDR v3.8.19 Release Notes | SmartSDR v2.12.1 and the SmartSDR v2.12.1 Release Notes
SmartSDR v1.12.1 and the SmartSDR v1.12.1 Release Notes
Power Genius XL Utility v3.8.8 and the Power Genius XL Release Notes v3.8.8
Tuner Genius XL Utility v1.2.11 and the Tuner Genius XL Release Notes v1.2.11
Antenna Genius Utility v4.1.8
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.

DAX control panel - TX gain setting when operating FT8

W8QB
W8QB Member ✭✭
edited January 2020 in FLEX-6000 Signature Series
On FT8 and other digital modes the DAX control panel's TX gain slider can be set anywhere between 0-100.  Where should the TX slider be set for optimal results?

Answers

  • KY6LA_Howard
    KY6LA_Howard Member ✭✭✭
    edited May 2018
    Set it so that the Mike Meter does not peak into red
  • W8QB
    W8QB Member ✭✭
    edited April 2019
    Thanks Howard!
  • Steven WA8Y
    Steven WA8Y Member ✭✭
    edited December 2019
    Yes, keep microphone peak meter from reaching the red (0dB). I set the processor to DX. Now the Flex is using CESSB which all but guarantees you won't splatter ( and a 2.5dB gain in your signal helps keep TX power lower).
  • Ted VE3TRQ
    Ted VE3TRQ Member ✭✭✭
    edited May 2018
    Digital modes should not use any processing at all, so only use DX setting with phone, and always set audio input gain to prevent clipping and distortion no matter the mode.
  • John - AI4FR
    John - AI4FR Member ✭✭
    edited May 2018
    Agree. Under mode I use DIGU which I believe also disables the processor and the EQ.
  • KY6LA_Howard
    KY6LA_Howard Member ✭✭✭
    edited May 2018

    Definitely use DIGU

    That automatically disables EQ and Compression

    Never use any form of EQ or Compression with Digital Modes

  • Tim - W4TME
    Tim - W4TME Administrator, FlexRadio Employee admin
    edited May 2018
    Actually, it is best to peak about -3 dB so you have some headroom on crowded bands with lots of signals (or Howard running 15KW)
  • Tim - W4TME
    Tim - W4TME Administrator, FlexRadio Employee admin
    edited May 2018
    Digital modes do NOT use any audio signal processing.

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.

Comment As ...

Categories