RimuSDR

Native Linux SDR control for FlexRadio

RimuSDR combines the main SDR operating experience with integrated DAX and CAT components, giving Linux operators one cohesive suite for everyday radio control.

Download & Install View Current Screens

FlexRadio 6000, 8000, and Aurora series · Panadapter · DAX · CAT · SmartLink

What RimuSDR Includes

The suite is designed to install and run as one integrated application set rather than as separate standalone products.

Core SDR Client

The primary operating interface for panadapter, waterfall, and radio control.

MultiFLEX - Allows multiple independent operators
SmartLink - Remotely connect to radios and manage credentials for multiple radios
Up to 8 Panadapters (depends on the radio capabilities)
Up to 8 Slices (depends on the radio capabilities)
Spots
Sub-band indication with color coding - user configurable
Temperature and voltage display
Tracking Notch Filters (TNFs)
Profiles
Integrated CWX keyer
FDX

Integrated DAX

Audio and I/Q integration for digital-mode and analysis workflows on Linux.

Virtual audio channels for Linux
Processed audio for FT8, PSK31, RTTY, and similar modes
Raw I/Q streams for CW Skimmer and SDR-Bridge
Operates as part of the RimuSDR suite

Integrated CAT

Control integration for logging, automation, and CAT-compatible radio software.

Virtual serial port interface for legacy radio software
Control support for logging and automation workflows
Bridges FlexRadio networking to CAT-compatible applications
Operates as part of the RimuSDR suite

RimuSDR Screens

Current RimuSDR operating screens showing panadapter, waterfall, and radio control capabilities.

RimuSDR operating view with panadapter and waterfall — Main RimuSDR operating view with the panadapter, waterfall, and radio control workspace.

RimuSDR with two panadapters — RimuSDR displaying two panadapters simultaneously for monitoring multiple bands or frequencies.

WSJT-X transmitting FT8 with RimuSDR — WSJT-X transmitting FT8 on 20 meters with RimuSDR providing radio control and RimuDAX routing audio.

DAX and CAT Components

Integrated DAX audio routing and CAT control interfaces built into the RimuSDR suite.

Integrated DAX view for Linux audio routing, digital-mode operation, and I/Q workflows.

Integrated CAT view for serial-style control and compatibility with traditional radio software.

Audio Settings

In RimuSDR you have many choices for audio devices. You can choose to use the system defaults or you can select the devices you want to use.

RimuSDR audio device settings interface showing options for configuring input and output devices.

SmartLink Enhancements

RimuSDR provides enhanced SmartLink management capabilities for remote radio operation.

SmartLink configuration display — Easily view SmartLink configuration details for radios in your SmartLink account, making remote radio setup and management straightforward.

Multiple SmartLink credentials storage — Store multiple sets of SmartLink credentials, making it convenient for operators who have access to multiple remote radios across different accounts.

Sub-Band Privileges

Visual sub-band privilege indicators help you stay within authorized operating segments.

Sub-band color coding display — The horizontal line displayed below the frequency scale represents sub-band privileges, providing at-a-glance visual feedback on authorized operating segments.

Sub-band configuration interface — RimuSDR includes a US region privileges file, but the configuration is fully customizable and can be substituted for other regions. Define sub-band frequency ranges and names with as much granularity as needed, specify valid license classes, and assign custom colors to each sub-band.

Sub-band privileges file example — Example of a sub-band privileges configuration file showing the detailed structure for defining frequency ranges, license classes, and visual settings.

Highlights

Key capabilities already in scope for the RimuSDR suite on Linux.

Integrated workflow

SDR, DAX, and CAT capabilities are presented as one suite instead of three disconnected tools.

Remote and shared operation

SmartLink and multiFLEX support help extend the operating experience across networks and operating positions.

Digital mode ready

DAX audio and I/Q paths are designed to support digital-mode and signal-analysis workflows on Linux.

Current page notes

StatusThis page uses currently available artwork while additional SDR capability screenshots are being prepared.
DownloadsPackaging details remain on the main page until final release packaging is ready.
Next stepReplace the interim gallery with fuller SDR operating screenshots as they become available.