Comment by teleforce

For an alternative and a similar system, TI has an RF DAC available now but the RF ADC is probably in the pipeline [1].

Imagine a flipper zero version on steroid based on this RF ADC/DAC platform but the price will probably going through the roof [2].

[1] 16-bit, 2-channel, 20.48-GSPS 12-GHz RF digital-to-analog converter:

https://www.ti.com/product/DAC39RF10

[2] Flipper Zero: Multi-tool Device for Geeks:

https://flipperzero.one/