CNN: 'Sonic attacks' suffered by US diplomats likely caused by microwave energy, government study says
gmkarl at gmail.com
Sun Dec 6 18:00:52 PST 2020
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
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:
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.
More information about the cypherpunks