-
Aurora
-
What is Aurora?
FlexRadio has developed a new HF transceiver with a 500W output on 160-10m HF bands (200W on 6m). This radio...
-
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...
-
Why is the Aurora radio so small for 500W?
The transmitter is extremely efficient, which results in the need for a much smaller heat sink. The reduced heat sink...
-
Does the Aurora include Adaptive Predistortion – SmartSignal?
SmartSignal is included with all Aurora models.
-
I see the Aurora radio weighs only 18 pounds (8kg)?
This doesn’t include the 500W transmitter and associated power supply, right? It does. Because of the high efficiency of the...
-
I understand that Aurora is around 80% efficient?
I checked, and my current radio is about 40-50% efficient. This means I’m saving about half the power, with Aurora,...
-
Is the Aurora radio compatible with digital modes like FT8 and RTTY?
Yes! Always monitor temperature and follow the manufacturer’s duty-cycle recommendations. The Aurora transceivers are rated for Intermittent Commercial and Amateur...
-
What is the Aurora’s maximum power on FT8, RTTY, etc?
We have tested 100% transmission for a continuous 2 hours. While we do not recommend doing that, we are confident...
-
When can I add an Aurora amplifier to my Brand X radio?
Unfortunately, you cannot. The Polar Explorer technology that Aurora is built upon requires inputs not of low-level composite RF like...