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: [1]https://kestreltscm.com/wp-content/uploads/2020/10/KTP-
   20200908.pdf

   On Sun, Dec 6, 2020 at 5:42 PM jim bell <[2]jdb10987@yahoo.com> wrote:

   I see a 12.4 GHz spectrum analyzer here for $2175.    [3]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 ...

     [4]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
   <[5]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 <[6]jdb10987@yahoo.com> wrote:
   >
   > CNN: 'Sonic attacks' suffered by US diplomats likely caused by
   microwave energy, government study says.
   >
   [7]https://www.cnn.com/2020/12/05/health/head-injuries-us-diplomats-gov
   ernment-study/index.html
   >
   >

References

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   1. https://kestreltscm.com/wp-content/uploads/2020/10/KTP-20200908.pdf
   2. mailto:jdb10987@yahoo.com
   3. https://signalhound.com/products/usb-sa124b/
   4. https://signalhound.com/product-category/spectrum-analyzers-and-sdr-receivers/?gclid=CjwKCAiAn7L-BRBbEiwAl9UtkDA92YwImtxidbou4t-aNtMuau3-I0c0JdxcZ4ZAh5MwAaDNnOhePhoCDRMQAvD_BwE
   5. mailto:gmkarl@gmail.com
   6. mailto:jdb10987@yahoo.com
   7. https://www.cnn.com/2020/12/05/health/head-injuries-us-diplomats-government-study/index.html

   Hidden links:
   9. https://signalhound.com/products/usb-sa124b/
  10. https://signalhound.com/product-category/spectrum-analyzers-and-sdr-receivers/?gclid=CjwKCAiAn7L-BRBbEiwAl9UtkDA92YwImtxidbou4t-aNtMuau3-I0c0JdxcZ4ZAh5MwAaDNnOhePhoCDRMQAvD_BwE