Welcome to the FlexRadio Community! Please review the new Community Rules and other important new Community information on the Message Board.
Need the latest SmartSDR or 4O3A Genius Product Software?

SmartSDR v3.9.19 and the SmartSDR v3.9.19 Release Notes
SmartSDR v2.12.1 and the SmartSDR v2.12.1 Release Notes

The latest 4O3A Genius Product Software and Firmware
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.

Noise reduction persistence with mode changes

Les Brown
Les Brown Member ✭✭
in SmartSDR for Windows

If I set the noise reduction level to let's say 50 in CW mode and I then change modes to LSB or USB and then back to CW, the noise reduction is disabled and set to 0.

Am I missing some basic configuration here or is this the way it is? I have both global and TX profiles defined but it seems that noise reduction levels are not saved with these profiles.

In the meantime, I'm working on a node red flow to set the noise reduction level whenever I change modes.

Comments

  • VE7ATJ_Don
    VE7ATJ_Don Member ✭✭✭✭
    edited September 26

    Hi Les.. as far as I know (and see) NR is set 'per mode' so yes, if you switch from CW to SSB directly, you'll lose your AGCT and NR settings.

    What I (and some others do) is use Global Profiles to store best settings for each band and operating mode — e.g. a profile for 20m CW, another for 20m phone, another for 15m CW, etc. Then, just select the profile to switch bands and modes. Another advantage is that you can set the panadapters to only show that portion of the band as well, and set other parameters such as bandwidth, filters, etc. mode-by-mode.

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

    Please follow up with a support ticket. thanks

  • Les Brown
    Les Brown Member ✭✭

    Don, thanks for your reply. Indeed, noise level settings are stored with global and/or transmit profiles. I misspoke about that. However, let me explain my setup. I was too brief in my posting.

    I do SO2R. I have a profile for SO2R 20-15 and another for SO2R 20-10. The profile stores everything including operating frequency. Let's say that both profiles have stored 14.03 as the operating frequency for 20m. I start with profile SO2R 20-15 and I tune the band to find a quiet frequency, let's say 14.025. I start running on 14.025. I'm doing S&P on 15m for a while. Now I want to switch the second radio to 10m to continue S&P on 10m. If I do this by selecting profile SO2R 20-10, I lose my operating frequency on 20m. It gets reset back to 14.03. No good!

    So, I don't switch profiles when operating. I use node red on my PC to send a command to the second radio to change the slice receiver (e.g., slice tune 1 28.03). This quickly switches radio 2 to 10m without changing anything on 20m, so my running isn't interrupted in any way. So far, so good. The noise level settings are maintained.

    The problem occurs when I switch modes by sending the radio a command like "slice set 0 mode=USB". This resets noise levels (nr=0, nr_level=0). So I have to manually enable noise reduction and set the desired level. Then when I switch back to CW mode with "slice set 0 mode=CW" again the noise level settings are reset (nr=0, nr_level=0) and I again have to manually enable it again. This is very distracting.

    It seems that this must have been done by design, why I don't know. So, I'm trying to modify my node red flow to maintain noise level settings with mode changes.

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