CNN: 'Sonic attacks' suffered by US diplomats likely caused by microwave energy, government study says

[Karl]

USB-SA124B:  Frequency Sweeps up to 140 MHz per second .  So it can
cover 6 GHz in 43 seconds, 12.4 GHz in 89 seconds.  BW 240 KHz.
The BB60C sold by the same company for $2995 has a 24 GHZ/sec sweep
speed, goes to 6 GHz instead of 12.4, and has a data bandwidth of 27
MHz. https://signalhound.com/products/bb60c/

This paper, a first google result, appears to describe hacking an
Ettus USRP to sweep 5 GHz in 5ms.  They describe picking up cell
towers at the same time as wifi with one radio.  Samples get lost and
corrupt; they use calibration to compensate some:
https://cseweb.ucsd.edu/~schulman/docs/nsdi19-sweepsense.pdf

It's a lot harder to make new things, especially big new things.  The
USRP can probably already sweep at a reasonable speed.  There's
probably software to do that.

On Sun, Dec 6, 2020 at 8:51 PM Karl <gmkarl at gmail.com> wrote:
>
> On Sun, Dec 6, 2020 at 7:47 PM Zenaan Harkness <zen at freedbms.net> wrote:
> > On Sun, Dec 06, 2020 at 10:41:09PM +0000, jim bell wrote:
> > >  I see a 12.4 GHz spectrum analyzer here for $2175.    USB-SA124B • 12.4 GHz Spectrum Analyzer | Signal Hound
> > What freq/price-point is Ettus up to these days?
>
> An Ettus USRP is apparently 6 GHz with 50 MS/s bandwidth, and go down
> to $773: https://www.ettus.com/all-products/usrp-b200mini-board/ .
> These devices are known for having a gnuradio driver for them.