CNN: 'Sonic attacks' suffered by US diplomats likely caused by microwave energy, government study says
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-...
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 <jdb10987@yahoo.com> 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-...
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 <gmkarl@gmail.com> 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 <jdb10987@yahoo.com> 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-...
Thank you so much. I don't know if I have the financial and skill capacity to make use of that anymore, but it is wonderful to find. I'm sure they will get even cheaper. The resolution bandwidth of that device appears to be 250 kHz. I found this in the links from it. It's a manual from some advanced TSCM software, which looks fascinating: https://kestreltscm.com/wp-content/uploads/2020/10/KTP-20200908.pdf On Sun, Dec 6, 2020 at 5:42 PM jim bell <jdb10987@yahoo.com> wrote:
I see a 12.4 GHz spectrum analyzer here for $2175. USB-SA124B • 12.4 GHz Spectrum Analyzer | Signal Hound <https://signalhound.com/products/usb-sa124b/>
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 ... <https://signalhound.com/products/usb-sa124b/>
Spectrum Analyzers and SDR Receivers | Signal Hound <https://signalhound.com/product-category/spectrum-analyzers-and-sdr-receivers/?gclid=CjwKCAiAn7L-BRBbEiwAl9UtkDA92YwImtxidbou4t-aNtMuau3-I0c0JdxcZ4ZAh5MwAaDNnOhePhoCDRMQAvD_BwE>
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 <gmkarl@gmail.com> 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 <jdb10987@yahoo.com> 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 6, 2020 at 7:47 PM Zenaan Harkness <zen@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.
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@gmail.com> wrote:
On Sun, Dec 6, 2020 at 7:47 PM Zenaan Harkness <zen@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.
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
This is more interesting: https://github.com/ucsdsysnet/sweepsense They didn't actually process both wifi and lte simultaneously, I misread it. It dwells so briefly you don't get a lot of data. There are nice pictures on the github.
participants (3)
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jim bell -
Karl -
Zenaan Harkness