I see a 12.4 GHz spectrum analyzer here for $2175.    USB-SA124B • 12.4 GHz Spectrum Analyzer | Signal Hound | | | | | | | | | | | USB-SA124B • 12.4 GHz Spectrum Analyzer | Signal Hound The Signal Hound USB-SA124B is a 100 kHz to 12.4 GHz Software Defined Receiver (SDR) optimized as a narrow-band ... | | |   Spectrum Analyzers and SDR Receivers | Signal Hound  | | | | Spectrum Analyzers and SDR Receivers | Signal Hound Signal Hound offers the best prices on quality spectrum analyzers, network analyzers, and signal generators. Fin... | | | On Sunday, December 6, 2020, 02:50:43 AM PST, Karl wrote: I am part of the civilian community that has been watching this and similar issues, if anyone hasn't figured that out, or wants more connections. On Sat, Dec 5, 2020 at 9:25 PM jim bell wrote:

CNN: 'Sonic attacks' suffered by US diplomats likely caused by microwave energy, government study says. https://www.cnn.com/2020/12/05/health/head-injuries-us-diplomats-government-...

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?

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 wrote:

On Sun, Dec 6, 2020 at 7:47 PM Zenaan Harkness wrote:

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On Sun, Dec 06, 2020 at 10:41:09PM +0000, jim bell wrote:

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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.