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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
FlexRadio unveiled the Aurora Series at the Dayton Hamvention in Xenia, Ohio, May 16–18, 2025.
UPDATE January 2025; The Aurora Series has begun shipping in December 2025 to US customers. Shipment of EU pre-orders will start as soon as CE authorization has been obtained. Estimated deliver is Q1/2026.
Limited Offer: Pre-order now, receive a free Aurora Jacket and Tumbler!
AURORA Series 500 Watt Transceivers
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FlexRadio, SDR Transceivers, Transceivers
FlexRadio AU-510 HF/6m 500W SDR Transceiver
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.
NOTE: Preliminary pricing, subject to change.
- ✔ Pre-order now – 250 EUR reservation fee
- ✔ Enter your order and check out with bank transfer
- ✔ You will receive instructions to transfer the reservation fee
- ✔ After checkout, you’ll receive an order confirmation
- ✔ When the product is available, we’ll contact you for final payment
- ✔ The 250 EUR fee will be deducted from your final payment
- ✔ Cancel your pre-order anytime – full refund of pre-order fee
SKU: FLEX-AU-510 -
FlexRadio, SDR Transceivers, Transceivers
FlexRadio AU-510M HF/6m 500W SDR Transceiver
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.
NOTE: Preliminary pricing, subject to change.
- ✔ Pre-order now – 250 EUR reservation fee
- ✔ Enter your order and check out with bank transfer
- ✔ You will receive instructions to transfer the reservation fee
- ✔ After checkout, you’ll receive an order confirmation
- ✔ When the product is available, we’ll contact you for final payment
- ✔ The 250 EUR fee will be deducted from your final payment
- ✔ Cancel your pre-order anytime – full refund of pre-order fee
SKU: FLEX-AU-510M -
FlexRadio, SDR Transceivers, Transceivers
FlexRadio AU-520 HF/6m 500W SDR Transceiver
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.
NOTE: Preliminary pricing, subject to change.
- ✔ Pre-order now – 250 EUR reservation fee
- ✔ Enter your order and check out with bank transfer
- ✔ You will receive instructions to transfer the reservation fee
- ✔ After checkout, you’ll receive an order confirmation
- ✔ When the product is available, we’ll contact you for final payment
- ✔ The 250 EUR fee will be deducted from your final payment
- ✔ Cancel your pre-order anytime – full refund of pre-order fee
SKU: FLEX-AU-520 -
FlexRadio, SDR Transceivers, Transceivers
FlexRadio AU-520M HF/6m 500W SDR Transceiver
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.
NOTE: Preliminary pricing, subject to change.
- ✔ Pre-order now – 250 EUR reservation fee
- ✔ Enter your order and check out with bank transfer
- ✔ You will receive instructions to transfer the reservation fee
- ✔ After checkout, you’ll receive an order confirmation
- ✔ When the product is available, we’ll contact you for final payment
- ✔ The 250 EUR fee will be deducted from your final payment
- ✔ Cancel your pre-order anytime – full refund of pre-order fee
SKU: FLEX-AU-520M
Aurora presents ONE GIANT LEAP FOR HAMKIND.
Learn More About Aurora
- CY0S Sable Island 2026: FlexRadio Aurora in DX’s Toughest Environment
- 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)
- Aurora Brochure
- Aurora FAQ
Pre-Order How-To
- Pre-order fee is 250.00 € (or 250.00 $ / 2,500.00 SEK)
- Add the Aurora model of your choice to the cart
- Check out using bank transfer as payment method
- Transfer the pre-order fee, 250.00 € (or 250.00 $ / 2,500.00 SEK)
- The pre-order fee will be deducted from the final price when the product is available.
- Your reservation is confirmed when pre-order fee is received.
Contact us today with any questions you might have ➜
Pre-order Aurora and get a bonus!
Visit our FlexRadio Department ➜