Welcome to the FlexRadio Community! Please review the new Community Rules and other important new Community information on the Message Board.
Need the latest SmartSDR or 4O3A Genius Product Software?
SmartSDR v4.1.3 | SmartSDR v4.1.3 Release Notes
SmartSDR v3.10.15 | SmartSDR v3.10.15 Release Notes
The latest 4O3A Genius Product Software and Firmware
SmartSDR v4.1.3 | SmartSDR v4.1.3 Release Notes
SmartSDR v3.10.15 | SmartSDR v3.10.15 Release Notes
The latest 4O3A Genius Product Software and Firmware
If you are having a problem, please refer to the product documentation or check the Help Center for known solutions.
Need technical support from FlexRadio? It's as simple as Creating a HelpDesk ticket.
Need technical support from FlexRadio? It's as simple as Creating a HelpDesk ticket.
-
Tony K1KP on the history of the FlexRadio Aurora 500W HF Radio
https://youtu.be/-PnIzjQyWL04 -
Aurora FAQ
Why is the Aurora transmitter so efficient? The Polar Explorer © 2025 transmitter is so efficient because it replaces legacy linear amplification with switch-mode amplification—specifically Class D a…1 -
Aurora Model Comparison
Aurora Series Comparison Feature AU-510 AU-510M AU-520 AU-520M Transmitter Power 1–500W HF, 1–200W 6m 1–500W HF, 1–200W 6m 1–500W HF, 1–200W 6m 1–500W HF, 1–200W 6m Efficiency (Peak) Up to 80% Up to …1 -
FlexRadio Aurora 500W HF Radio
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, i…4 -
Re: Time from payment until delivery?
Peter.. I see your email, but I haven't had a chance to answer all my emails yet. However, we ran out of cases and that slowed down building. The supplier did not deliver on schedule but I think…1
