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RimuSDR for Linux — Now Available

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  • Trucker
    Trucker Member ✭✭✭✭
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    That's why it's nice to have choices. Without the Flex Radio API, AetherSDR, RimuSDR, and Markus version of SmartSDR would not exist. I believe that Flex Radio has kept SmartSDR simplified to allow 3rd party developers to create software for their radios. And it is a win for Flex Radio whether we use only SmartSDR or, one of the other interfaces available now. I don't see a problem with any of them. ( paid or for free)

    James

    WD5GWY

  • Doug - W3UB
    Doug - W3UB Member ✭✭
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    Yep, choices are good!

    Doug

  • TimW
    TimW Member ✭✭
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    The choices are good, and have a hidden benefit. I setup a Linux desktop machine just to try the Rimu client. I’ve had a ton of fun learning the Linux ecosystem. It’s been very educational, and this is from someone who had traditionally disliked Linux desktops. Windows 11 is turning into a real POS if you ask me.

  • Doug - W3UB
    Doug - W3UB Member ✭✭
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    Yep, I’m never going to Win11. If you want to stick with Win10 you can subscribe to 0 patch. Or try Linux or OSX.

    Doug

  • NV0E
    NV0E Member ✭✭
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    RimuSDR v1.1.8 Release Announcement

    RimuSDR v1.1.8 is now live, bringing two of the most requested integrations to the native Linux SDR client for FlexRadio: full FlexControl knob support and native Antenna Genius control. This update also includes performance boosts, workflow refinements, and a wide set of fixes across the suite.

    Key Enhancements

    • FlexControl Knob Fully supported with smooth, low latency hardware tuning.
    • Antenna Genius Native control, including switching and configuration.
    • Waterfall Performance Reduced CPU usage across all platforms.
    • Audio Path Improvements RX buffer flush and Opus suppression during TX for cleaner transitions.
    • Spot Levels Increased to 15 levels.
    • MIDI Enhancements Better device detection, loopback filtering, new actions, UI refinements.
    • SmartLink Login More reliable authentication flow.
    • RimuDAX New statistics dialog and improved audio path.

    Platform Updates

    • Ubuntu 24.04 and 26.04 on aarch64 now fully supported for the entire RimuSDR suite (deb and AppImage).
    • Fedora 44 now supported (rpm).
    • Fedora 42 discontinued (EOL).

    Fixes

    • Panadapter Handling Multiple panadapter open issue resolved.
    • Diversity Panel Gain and phase values now shown correctly.
    • SmartLink Caching Caching behavior corrected.
    • Waterfall Time Scale Drag regression resolved.
    • Spectrum Fill Setting now saves properly.
    • MIDI Detection Device detection fixed on Windows.
    • Spot Overflow Overflow handling corrected.
    • FM OPT and XVTR Settings now persist.
    • FM Property Updates Slice flag and RX panel now update correctly.
  • TimW
    TimW Member ✭✭
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    Nice upgrade. Thanks for your efforts. Can’t wait to move the Flex Control device over from old PC.

  • TimW
    TimW Member ✭✭
    edited June 1
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    Is there a trick to get the Flex Control working? The tty device seems to be detected okay in the configuration screen, however buttons and knob are unresponsive in the app. I might try rebooting. I did restart the app but no joy. Also, device is identified correctly in the USB section of the system information app as supplied by Mint.

  • Dan Trainor
    Dan Trainor Member ✭✭✭
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    So many nice new choices for applications on the client side. Both full featured SDR apps and also many new companions apps. The new ideas and creativity is impressive. And the platform support is great. Linux, Mac, iOS, Android, and Windows. Incredible. Development of some/most of these apps accelerated by AI assistance. We are entering a New Era of really really Smart client applications and new innovations. And, It has breathed new life into my 6000 series radios, for sure. I operate 95% of time Remote using my MacBook with external display. SmartSDR for Mac (Marcus) and now increasingly more use of AetherSDR for Mac. Although, I am now motivated to try Linux. So many new options and opportunities. Choices, It is a beautiful thing! Dan de WA1QZX.

  • NV0E
    NV0E Member ✭✭
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    Hi Tim,

    Let me know if rebooting helped, I haven't had any issues with the Flex Control. In fact, its been very robust and it just seems to work every time. Here are my settings, if that helps. The USB device name in Linux will likely vary.

    image.png
  • NV0E
    NV0E Member ✭✭
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    RimuSDR v1.1.9 Release Announcement

    RimuSDR v1.1.9 is now live, delivering another highly requested integration: native Power Genius XL control directly inside the client.

    Enhancements

    • Power Genius XL control : Full native integration with a built‑in control panel for quick access and monitoring.
    • Radio toast messages : New popup toast notifications for radio events, improving operator awareness without interrupting workflow.
  • TimW
    TimW Member ✭✭
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    I managed to get my Flex Control working by adding my user to the dialout group. When I get time I’ll go through the logs and see if a permissions error was journaled anywhere. A log off, log on was required.

  • NV0E
    NV0E Member ✭✭
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    Oh, of course! In Linux, access to serial ports requires the user be in the dialout group. Its in the RimuCAT instructions, but I need to add it to the general instructions. Thanks Tim!

  • NV0E
    NV0E Member ✭✭
    edited June 16
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    RimuSDR v1.1.10 - Release Announcement

    RimuSDR v1.1.10 is now live. This update delivers two SmartSDR+‑aligned enhancements along with a focused set of reliability and workflow fixes.

    RimuSDR can be found here: https://rimusystems.com/

    Key Enhancements

    • TX Passband - Adds the SmartSDR+ TX Passband feature, now fully implemented in RimuSDR.
    • Filter Settings - If the radio has SmartSDR+, RimuSDR now honors the radio’s native filter settings. Otherwise, locally stored filter settings are used.

    Fixes

    • SmartLink Manager now correctly uses the new login dialog.
    • RimuDAX now opens RX Streams properly when operating over SmartLink.
    • Slice Flag Audio menu UI glitch resolved.
    • Digital Offset added to the Slice DSP panel.
    • Radio Discovery now falls back to serial number when no nickname is present.
    • Slice Panel repositioning lag eliminated when dragging the slice tuning flag with panels open.
    • RIT implementation corrected for proper visual behavior.
    • RTTY Mark/Shift implementation fixed.
    • Audio Settings no longer require pressing Apply button
  • NV0E
    NV0E Member ✭✭
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    RimuSDR v1.1.11 — Release Announcement

    v1.1.11 is now live. This is a packaging‑only maintenance release — all applications are unchanged from 1.1.10.
    RimuSDR can be found here: Rimu Systems LLC — Native Linux SDR for FlexRadio.

    Linux packages have been corrected to install and launch reliably on clean and minimal systems. Several issues were silent on typical desktops and only surfaced on minimal installs or newer distributions. Windows and AppImage builds were unaffected.

    All packages are now validated by automated install‑and‑launch tests in clean Ubuntu 24.04, Ubuntu 26.04, and Fedora 43/44 environments before shipping.

    Fixes

    • RimuSDR — Qt Network Bundling
      Fixed startup crash on Fedora 44 (and other systems with Qt 6.11+) — Qt Network library is now bundled.
    • RimuSDR — .deb ALSA Dependency
      Fixed .deb packages failing to start on minimal Debian/Ubuntu systems due to missing ALSA dependency.
    • RimuDAX — Minimal System Dependencies
      Fixed launch failures on minimal Debian/Ubuntu systems — ALSA and libsecret dependencies now declared.
    • RimuDAX — Fedora libxcb-cursor
      Fixed failure to start on minimal Fedora installs due to missing libxcb‑cursor.
    • RimuCAT — .deb libsecret Dependency
      Fixed .deb packages failing to start on minimal Debian/Ubuntu systems due to missing libsecret dependency.
  • NV0E
    NV0E Member ✭✭
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    RimuSDR v1.1.12 — Release Announcement

    RimuSDR v1.1.12 is now live. This is a large release adding a lot of requested features and a significant number of stability fixes.

    RimuSDR can be found here: RimuSDR - Native Linux SDR for FlexRadio

    Enhancements

    • Tuner Genius XL Support — RimuSDR now detects a TGXL on the network and exposes a full control panel when present.
    • Wavelog / Cloudlog Integration — New RimuCAT port type enabling direct HTTP API integration. Live frequency/mode/power updates flow into the logbook, and click‑to‑tune commands return to the radio — no WaveLogGate or CloudlogCAT required.
    • Waterfall History Scrolling — Operators can pause the waterfall and scroll backward through captured history.
    • HamLib Protocol Support — New RimuCAT port type providing HamLib compatibility for third‑party apps lacking Flex‑style CAT support.
    • MIDI Keyer Support — Added CW keying over MIDI; verified with CTR2 and HaliKey. Compatible with other MIDI keyers.
    • Direct IP Radio Connection — Radios can now be connected via manually entered IP address for VPN/segmented network operation.
    • Zoom to Band / Segment — Added missing zoom features to the panadapter.
    • Application Log Governance — Log rotation + size limits prevent runaway growth under debug logging.

    Fixes

    • Panadapter Visibility — Off‑screen manual frequency entry now repositions the panadapter correctly.
    • Waterfall Sync — Waterfall no longer lags after external frequency changes.
    • Slice Dragging Behavior — Panadapter no longer pans when the operator intends to drag a slice.
    • Off‑Screen Slice Indicators — Clicking an off‑screen slice indicator restores the slice to view.
    • External Tuning Handling — External frequency changes are no longer ignored after knob/keyboard tuning.
    • DAX RX Gain — RX gain slider now works correctly under MultiFlex.
    • Memory Handling Cleanup — Fixed issues across all three applications that left memory in use.
    • RimuSDR SEGFAULT — Fixed unsafe multi‑thread variable access triggered when RimuCAT connects.
    • Artix Linux AppImage Error — Removed indirect reference to a systemd library not present on Artix.
    • MultiFlex API Fixes — Several API corrections to support MultiFlex.
    • Thread Safety — Added mutex guards throughout the API layer.
    • Windows Crash‑on‑Close — Fixed WASAPI initialize/uninitialize issues.
    • WWV/GEN Band Buttons — Sent literal labels instead of numeric codes; now handled correctly.
    • Manual Slice Frequency Entry — Now recenters the panadapter and shows off‑screen indicators.
    • License Class Dropdown — Band‑privileges JSON now reliably staged.
    • Audio Device Refresh — PulseAudioEngine’s refresh now works.
    • CW Sidetone Latency Overhaul — Dedicated low‑latency stream with sample‑accurate keying; latency significantly reduced.
    • Right‑Side Panel Flicker — Eliminated flicker caused by cached slice values during band changes.
    • RimuDAX Audit Remediation — Fixed missing event handlers after reconnect, TX audio glitch, and stuck MOX silence path.
    • RimuDAX Crash/Race Fixes — Closed use‑after‑free and lost‑wakeup bugs in RX/Mic/TX teardown.
    • RimuCAT Audit Remediation — Fixed CommandQueue use‑after‑free, PTY corruption, CPU busy‑spin, shared‑pointer races, and a log filter bug hiding warnings.
  • Trevor Hopps
    Trevor Hopps Member ✭
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    Thanks Simon, I've struggled through the years with my flex6500. I hated the idea of smartsdr being proprietary and having to run it on windows. You have just enabled me to be free of that last legacy. Installed it last night on cachyos (Appimage) with not a lot of hope to be honest given cachyos optimisations etc. This is a cachyos install on a virtual machine running on a small nuc in my homelab. I was very suprised at just how good it looked and worked straight out of the (we used to say box) downloads directory. No issues with audio (Cachyos uses pipewire) and no issues with the Dax cables to other applications. Happily paid for the license fee and will continue to follow as the roadmap develops. Thanks again. Trevor . VK8TH
  • NV0E
    NV0E Member ✭✭
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    Hi Trevor,

    Thank you for the kind words, and I am really glad to hear RimuSDR ran smoothly on your CachyOS setup, especially with all the VM and PipeWire layers in the mix.

    I appreciate you supporting the project, and I am happy it helped you finally break free from the last bit of Windows in your Flex workflow.

    You are always welcome to send any enhancement ideas or bug reports to support@rimusystems.com, they help shape the roadmap and keep things moving in the right direction.

    Thanks again, and 73.
    Simon

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