FlexRadio AU-510 HF/6m 500W SDR Transceiver

The FlexRadio AU-510 delivers exceptional RF performance in a radically compact form factor—leveraging cutting-edge high-efficiency technology that produces more power with less weight, lower heat, and dramatically reduced power input requirements. At the heart of Aurora is a revolutionary 500W transmitter module that achieves up to 90% efficiency—a dramatic leap over conventional MOSFET and LDMOS designs, which typically operate at 40–60%. The result: less heat to dissipate, a smaller heatsink, and a much lighter radio.

The entire 500W transmitter fits in the same physical envelope as traditional 100W PA systems and runs cool enough to share the existing FLEX-8000 heatsink footprint. This level of integration means operators no longer need to carry or connect external power amplifiers, tuners, or heavy AC/DC power supplies. The Aurora Series includes everything needed inside the chassis—power supply, automatic antenna tuner, and 500W transmitter—with a standard IEC plug accepting 80–264VAC.

The AU-510 features the AURORA high-power, high-efficiency transmitter, game-changing band awareness, industry-leading phase noise performance / receiver dynamic range, and brick wall filters to give you the advantage in the most competitive DXing or contesting activities while maximizing your fun during casual operations.

FlexRadio’s industry-leading SmartSDR™ software offers compatibility across the entire FlexRadio Aurora Series, FLEX-8000 Signature Series and FLEX-6000 series family to deliver continuous leveraged software enhancement. And you can use the latest SmartLink™ technology to access your radio virtually anywhere from any SmartSDR compatible client with only a login and password — even your iPhone.

AU-510 Features

• 500W PEP HF, 200W 6m operation with 80% nominal efficiency
• Integrated AC/DC Power Supply, 80-264VAC, 47-63Hz, PF > 0.94
• All Modes/Amateur Bands 160m-6m
• Integrated Remote Operation with a Maestro™, iPad®, iPhone® or PC/Laptop
• Two Independent Band/Mode Receivers
• Full Duplex Cross-Band Operation
• One Receive Only Port
• One Transverter/Exciter Port
• Direct Sampling SDR 122.88Msps, 16 bit
• 115 dB 2kHz RMDR
• >145 dB Dynamic Range
• Built in 500W Antenna Tuner
• 10 MHz Reference Input
• Integrated GNSS receiver with antenna maintains radio frequency with no adjustments
• Optional High-performance GPSDO provides 10MHz output for external equipment

Plug & Play Remote*

• No complex setup required
• Operate anywhere, any time
• Use a Maestro, Mac, iPad, iPhone or Laptop
• Across the country or across the world

Anywhere, Anytime, From Any Of These Devices:

With SmartLink and a FlexRadio AURORA transceiver, you can operate your radio from almost anywhere! Just take an iPhone, iPad, Mac, Laptop, or Maestro with you and instantly connect to your radio with virtually no setup required.

Best in Class Performance

• 115db RMDR
• No listening fatigue
• Ultra-Low Phase Noise
• Full Break-in QSK CW
• Brick Wall Filters
• Stunning transmit audio

Backed by an Amazing Suite of Software

• SmartSDR for Windows
• SmartSDR for Mac
• SmartSDR for iOS
• SmartSDR CAT
• SmartSDR DAX

*SmartLink Remote Requires SmartSDR V2.x License or Later. Requires an Internet connection.

AU-510 Specifications

Receiver

• Independent Band/Mode Receivers (Max): 2
• 1 / 2 kHz Reciprocal Mixing Dynamic Range (RMDR): 110/115 dB
• ADC Bits/Sampling Rate: 16/122.88 Msps
• Frequency Coverage: 30 kHz-54 MHz
• Amateur Band Preselectors: 3rd Order
• Cable-less Digital Audio (DAX/DAX IQ) Channels: 2/2
• Receive Only Ports (Base/Including XVTR Ports): 1/2
• Full Duplex RX/TX Operation

Spectrum / Waterfall Display

• Spectrum/Waterfall Displays (Max): 2
• Spectrum/Waterfall BW (Min/Max): 5 kHz–7 MHz
• Spectrum Dynamic Range (Max Zoom): >145 dB
• Spectrum Resolution Bandwidth (Min): 5.85 Hz/px (bin)

Aurora Transmitter

• 160m-10m Transmitter Output: 1-500W (125W AM)
• 6m Transmitter Output: 1-200W (50W AM)
• Harmonic Suppression (Typ): ≤ 60 dBc
• Transverter Ports: 1
• Transverter IF Frequency Coverage/Power: 100 kHz – 54 MHz/adjustable up to +10 dBm
• Integrated Automatic Antenna Tuner Range: 3:1 SWR
• Integrated Adaptive Pre-distortion (SmartSignal™)

 General

• Modes¹ SSB, CW, AM, SAM, FM, RTTY, DIGITAL
• Integrated Remote Operation with SmartLink™
• Maestro, PC, MAC, iPhone®, iPad® Client Options
• Integrated 12-channel GNSS Receiver, TTFF (COLD) <35s: GPS, Galileo, GLOSNASS, QZSS, SBAS
• Frequency Stability (0C – 50C): 0.001ppm (GNSS), 0.5ppm (TCXO)
• Optional GPS Disciplined Oscillator Optional 5 x 10-13 Over 24 Hours
• External 10MHz Reference Input
• Power Supply Requirements: 80-264VAC, 35W Receive, 675W Transmit
• Dimensions: 6.74″H (17.1 cm) x 14″W (35.6 cm) x 13.25″D (33.7 cm)

1. RTTY and other digital modes use 3rd party software over DAX channels.

AU-510 Whats in the Box

• AU-510 Transceiver
• FHM-3 Hand Mic
• DC Power Cable
• Ethernet Cable
• Quick Start Guide

Want to know even more?

• FlexRadio AURORA Brochure
• AURORA FAQ, Frequently Asked Questions
• Quick Start Guide
• User Guide (Coming soon)
• Reference Manual (Coming soon)

NOTE: Preliminary information. Some features subject to change without notice. Some features may be supported in future firmware releases.