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Here's the bladeRF 2.0 micro xA4 in action. 60MHz bandwidth, low CPU load. Still early days, but it works!
For more info, https://www.nuand.com/product/bladeRF-xA4
The viridis scales provide color maps that are perceptually uniform in both color and black-and-white. They are also designed to be perceived by viewers with common forms of color blindness. [link to ggplot2]
Here's an example of RTTY in action with version 3.0.3 (not available yet), click for a full-size image.
Some of the early V3 code was not as efficient as it should have been - the Windows message pump was working too hard. Messages have been replaced with callacks and high-precision timers, as a result performance and CPU load on lower-powered computers such as the Core2Duo and mobile CPUs has improved, sometimes quite dramatically.
Select from the Defns panel in the ribbon bar, Defns is only shown if you have enabled one or more definitions groups.
In the Organiser select the Definitions, click … to define groups (top of window, see below).