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FlexRadio Manuals & User Guides

FlexRadio is a pioneer in software-defined radio (SDR) technology, manufacturing high-performance HF/6M transceivers and sophisticated control software for amateur and commercial markets.

Tip: include the full model number printed on your FlexRadio label for the best match.

About FlexRadio manuals on Manuals.plus

FlexRadio Systems is a global leader in the design and manufacture of software-defined radios (SDR) and related technology for the amateur radio, government, and commercial sectors. Based in Austin, Texas, the company revolutionized the ham radio landscape with its SmartSDR ecosystem, allowing operators to visualize and control radio spectrum with unprecedented precision.

Their product line includes the flagship FLEX-6000 and FLEX-8000 series transceivers, the standalone Maestro control console, and the portable Aurora series.

Commited to innovation, FlexRadio focuses on providing "real radio" performance through advanced digital signal processing. Each unit is designed to offer flexibility, remote operation capabilities via SmartLink, and continuous improvement through software updates. Whether for contesting, DXing, or emergency communication, FlexRadio delivers robust hardware and intuitive interfaces that define the modern radio experience.

FlexRadio manuals

Latest manuals from manuals+ curated for this brand.

FlexRadio FLEX-8400M SDR Transceiver Instructions

August 12, 2025
FlexRadio FLEX-8400M SDR Transceiver Product Information Specifications Product Name: SmartSDR Version 3 Version: 3.9.19 General Release Date: 2025-07-08 Compatibility: SmartSDR for Windows, SmartSDR for the M Models, and Maestro FLEX-8400™/FLEX-8400M™…

FlexRadio FLEX-8000 Software Defined Radios User Guide

June 21, 2025
FLEX-8000 Software Defined Radios Specifications: Product Name: SmartSDRTM for Windows v3.9.18 Compatibility: FLEX-8000 and FLEX-6000 series software-defined radios, and MaestroTM Release Date: May 28, 2025 Version: 3.9.18 Product Information: SmartSDRTM…

FlexRadio FLEX-8400 SDR Transceiver User Guide

November 18, 2024
FlexRadio FLEX-8400 SDR Transceiver Product Information Specifications Product Name: SmartSDR for Windows v3.8.20 Release Date: November 12, 2024 Compatible with: FLEX-8400, FLEX-8600, FLEX-6000 series software-defined radios, and Maestro Product Usage…

FlexRadio AURORA 500W Transceiver Quick Start Guide

quick start guide
This Quick Start Guide provides essential information for setting up and operating the FlexRadio AURORA 500W Transceiver (models AU-510, AU-510M, AU-520, AU-520M). It covers unboxing, required connections, SmartSDR software installation,…

SmartSDR v3 Changelog - FlexRadio

Software Release Notes
Comprehensive changelog for SmartSDR version 3, detailing significant changes, bug fixes, and improvements across various maintenance and general releases for SmartSDR for Windows, M Models, and Maestro.

SmartLink Setup Guide - FlexRadio

User Manual
A comprehensive guide to setting up FlexRadio's SmartLink service, enabling remote access to your FlexRadio from outside your home network. Covers account registration, radio setup, and router configuration.

SmartSDR v4.0.1 Release Notes - FlexRadio

Release Notes
Detailed release notes for FlexRadio's SmartSDR v4.0.1 software, covering new features like enhanced noise mitigation, Digital Voice Keyer (DVK), CW Auto Tune, and Relative Noise Floor Scaling. Includes bug fixes,…

SmartSDR v4.0.1 Release Notes - FlexRadio

release notes
Comprehensive release notes for FlexRadio SmartSDR v4.0.1 software, detailing new features like DSP noise mitigation, CW Auto Tune, Enhanced Signal Clarity, bug fixes, installation guides, and best practices for SDR…

MHCozy USB 5V Switch Installation and Setup Guide

installation guide
A comprehensive guide to installing and configuring the MHCozy USB 5V Switch for remote control of FlexRadio devices using the Tuya Smart app. Includes step-by-step instructions, connection diagrams, and testing…

FlexRadio FLEX-6400/6400M ATU Kit Installation Guide

Installation Guide
Step-by-step instructions for installing the FlexRadio FLEX-6400/6400M ATU Kit. This guide details required tools, essential prerequisites including ESD precautions, and a comprehensive procedure with textual descriptions of visual elements for…

SmartSDR for Windows v3.10.15 Release Notes

Release Notes
Release notes for SmartSDR for Windows version 3.10.15, detailing maintenance updates, bug fixes, important release details, installation best practices, and known issues for FlexRadio software-defined radios.

FlexRadio support FAQ

Common questions about manuals, registration, and support for this brand.

  • Where can I download the SmartSDR software?

    SmartSDR software for Windows, Mac, and iOS, along with firmware updates, can be downloaded directly from the FlexRadio website under the Software or Documentation sections.

  • How do I contact FlexRadio technical support?

    You can reach technical support by submitting a request through the FlexRadio HelpDesk portal or by calling their main support line at +1 (512) 535-4713 during business hours.

  • What is the warranty period for FlexRadio transceivers?

    FlexRadio typically offers a limited hardware warranty for its transceivers and accessories. Specific terms and warranty transfer options can be found on the Warranty & Return Policy page of their official website.

  • Can I operate my FlexRadio remotely?

    Yes, FlexRadio transceivers support remote operation via the SmartLink system, allowing you to control your radio securely from anywhere using a PC, Mac, iPad, or Maestro console.