Welcome to the FlexRadio Community! Please review the new Community Rules and other important new Community information on the Message Board.
The latest SmartSDR Software:
SmartSDR v4.2.20 | SmartSDR v4.2.20 Release Notes
SmartSDR v3.10.15 | SmartSDR v3.10.15 Release Notes

The latest 4O3A Genius Product Software:
The latest 4O3A Genius Product Software and Firmware
How to Receive Technical Support::
If you are needing assistance with FlexRadio products, 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.

PPT / rca Flex-6400M and DAX input TX

ik7ezn
ik7ezn Member ✭✭
in SmartSDR for Windows

I need to use a transverter connected the Flex-6400M to TXing via the rear RCA/PPT connector.
When using CW, everything works, but when I select DAX as the digital input, no power comes out. The DAX level on the PC increases, but not the power. To make the DAX work, I have to select PTT via CAT. Then it works.

Is there a way to make it work in digital with DAX as the input but with PTT via the rear RCA and no ptt via cat ?

Thanks

73 Ermanno/ik7ezn

Comments

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

    Can you provide a video as I am trying to understand what isn't working here.

    Basically, if if you Transverter goes into TX when you push the MOX button or PTT switch then you have the transverter correctly configured.

    In order to have power, you need the audio to make it into the radio, and this is why you need DAX turned on in SmartSDR.

    I think you have answered your own question and that to have RF out, you need to send a CAT PTT command. That is the way the system is designed. Is there a reason why that will not work for you?

  • ik7ezn
    ik7ezn Member ✭✭

    Mike, thanks for the reply, but the problem is there. I would like to have a working input with DAX but with manual PTT. This is necessary because when using transverters, sequencers, preamplifiers, etc., the rx/tx sequence and vice versa must be performed externally to switch all the relays and then the Flex will have to output the power. If the switching starts from the flex via cat/ptt, even the maximum delays are not sufficient to guarantee safety. You confirmed to me that the Flex was designed to use input from DAX only if the PTT is performed via CAT. I will have to find another solution, such as not using the DAX and sending the digital audio via cable to the USB microphone input.

    73 Ermanno / ik7ezn

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

    This is actually not required because the sequencer in the radio is very intelligent unlike other HF radio.

    RF is actually delayed until all the timers in the TxD and Sequencers expire. You can read about it in the Hardware Reference Manual in Section 16. This prevents how switch overs.

    If you want to test it, set TX Delay to 1000ms and see if the RF is not sent until 1 second after the request for the radio to go into transmit.

    https://www.flexradio.com/documentation/flex-8000-hardware-reference-manual

    image.png

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