Applications:

  · Radar and communications, L/S/C/X/Ku band radar and electronic warfare
  · Phase array system,
  · Broadband communications systems
  · Electronic test and measurement systems
  · Satellite communications
  · Microwave point-to-point, X-band and 5G mmWave

https://www.analog.com/en/products/ad9084.html

So most probably subject to export controls.

There are things that you can build with a dozen $30 rtlsdr dongles that would be export controlled.

The bar is pretty low these days. It reminds me of the time Phil Zimmermans PGP was considered a munition for USA export purposes

The KrakenSDR is certainly toeing the line.

I think that it should be possible to distribute clock lines to at least a 16 channel engine using Tayloe polyphase detectors, which have really good noise characteristics, image rejection, and incredible dynamic range, they also make efficient use of the received signal. One 8 phase clock to feed it all, and coherent downconversion is guaranteed.

Parts cost would be $100 or less via Digikey.

I was thinking about:

> Multiple loopback (ADC to DAC) supported ~45 ns without DSP path

If you can get a tiny bit of DSP in there without boosting latency out of the water, then I bet this could be used to pretty thoroughly defeat the supposed jamming immunity of frequency hopping techniques.