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FlexRadio Aurora
Introducing the Aurora™ Series—an all-new family of HF/6m transceivers featuring the world’s first truly integrated 500W SDR transmitter. The Aurora Series defines a new category in amateur radio, eliminating the traditional boundaries between transceiver, amplifier, tuner, and power supply.
What is Aurora?
FlexRadio has developed a new HF transceiver with a 500W output on 160-10m HF bands (200W on 6m). This radio does not use a legacy RF exciter followed by a linear amplifier. Instead, it uses a transmitter that employs Polar Modulation (PM).
Having a 500-watt transceiver with an integrated automatic antenna tuner (ATU) in a single unit offers a few clear advantages, especially for seasoned operators who value simplicity and efficiency. First, it reduces the need for interconnecting multiple devices, which cuts down on cabling, potential RFI issues, and the complexity of station setup. This integration can also streamline operation, as the ATU and amplifier are designed to work in harmony, often offering faster tuning and better protection for both the radio and the amplifier. Another big plus is the space-saving aspect—ideal for both compact home stations and portable setups where minimizing gear is a priority
Aurora provides significant benefits over transceivers with linear amplifiers. The polar modulation technique used is significantly more efficient than linear amplification. This change to the transmitter yields significant power savings, generates less heat resulting in the need for a much smaller heat sink which also reduces size and weight. It is the most significant advancement in amateur radio transmitter technology in the last 50 years.
By adopting the proven architecture of the FLEX-6000 and FLEX-8000 series and maintaining compatibility with SmartSDR, Aurora offers a familiar yet powerful upgrade path for today’s FlexRadio operators.
Aurora key differences (compared to FLEX-8000 series)
- 500W PEP on HF, 200W on 6m with 80% nominal efficiency
- Built-in 500W antenna tuner
- Integrated AC/DC power supply (80–264 VAC, 47–63 Hz) with power factor > 0.94
When is AURORA
FlexRadio unveiled the Aurora Series at the Dayton Hamvention in Xenia, Ohio, May 16–18, 2025. The Aurora Series will begin shipping in Q4 2025 once FCC/CE authorization has been obtained. At Pileup we are taking preorders now. Visit our FlexRadio department here.
AURORA Series 500 Watt Transceivers
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FlexRadio, SDR Transceivers, Transceivers
FlexRadio AU-510 HF/6m 500W SDR Transceiver
Available December 1, 2025.The new FlexRadio AU-510 HF/6m transceiver features the world first truly integrated 500W SDR transmitter and up to 2 independent receivers with powerful SDR performance.
The Aurora Series defines a new category in amateur radio, eliminating the traditional boundaries between transceiver, amplifier, tuner, and power supply.
To pre-order an Aurora transceiver, add it to your cart and proceed to checkout. Transfer the pre-order fee of €250.00 to our bank account (bank transfer is the only payment method available for FlexRadio products). Feel free to contact us with any questions.
NOTE: Preliminary pricing, subject to change.
SKU: FLEX-AU-510 -
FlexRadio, SDR Transceivers, Transceivers
FlexRadio AU-510M HF/6m 500W SDR Transceiver
Available December 1, 2025.The new FlexRadio AU-510M HF/6m transceiver features the world first truly integrated 500W SDR transmitter, up to 2 independent receiver slices, combining powerful SDR performance with a built-in display and front panel controls for standalone use.
The Aurora Series defines a new category in amateur radio, eliminating the traditional boundaries between transceiver, amplifier, tuner, and power supply.
To pre-order an Aurora transceiver, add it to your cart and proceed to checkout. Transfer the pre-order fee of €250.00 to our bank account (bank transfer is the only payment method available for FlexRadio products). Feel free to contact us with any questions.
NOTE: Preliminary pricing, subject to change.
SKU: FLEX-AU-510M -
FlexRadio, SDR Transceivers, Transceivers
FlexRadio AU-520 HF/6m 500W SDR Transceiver
Available December 1, 2025.The new FlexRadio AU-520 HF/6m transceiver features the world first truly integrated 500W SDR transmitter, 2 SCUs (Sampling Capture Units), up to 4 independent receivers, and 7th-order contest-grade preselectors for superior dynamic range, providing full SO2R support and diversity reception.
The Aurora Series defines a new category in amateur radio, eliminating the traditional boundaries between transceiver, amplifier, tuner, and power supply.
To pre-order an Aurora transceiver, add it to your cart and proceed to checkout. Transfer the pre-order fee of €250.00 to our bank account (bank transfer is the only payment method available for FlexRadio products). Feel free to contact us with any questions.
NOTE: Preliminary pricing, subject to change.
SKU: FLEX-AU-520 -
FlexRadio, SDR Transceivers, Transceivers
FlexRadio AU-520M HF/6m 500W SDR Transceiver
Available December 1, 2025.The new FlexRadio AU-520M HF/6m transceiver features the world first truly integrated 500W SDR transmitter, 2 SCUs (Sampling Capture Units), up to 4 independent receivers, 7th-order contest-grade preselectors, outstanding dynamic range, providing full SO2R support and diversity reception and diversity reception—combined with a built-in display and controls for both remote and standalone operation.
The Aurora Series defines a new category in amateur radio, eliminating the traditional boundaries between transceiver, amplifier, tuner, and power supply.
To pre-order an Aurora transceiver, add it to your cart and proceed to checkout. Transfer the pre-order fee of €250.00 to our bank account (bank transfer is the only payment method available for FlexRadio products). Feel free to contact us with any questions.
NOTE: Preliminary pricing, subject to change.
SKU: FLEX-AU-520M
Aurora presents ONE GIANT LEAP FOR HAMKIND.
Learn More About Aurora
- Behind-the-Scenes Introduction with Steve Hicks (N5AC) (Video)
- Tony, K1KP on the FlexRadio Aurora 500W HF radio (Video)
- HRCC: What Is The Aurora from FlexRadio? (Video)
- FlexRadio Department
- Aurora Brochure
- Aurora FAQ
AURORA Key Down 500W for Hours!
