Ultrasonic Projects and others

I was looking into the latest and greatest microphones, ultrasound microphones and detecting ultrasound in general more real time spectral analysis since I was thinking about modifying the Mini-3 Bat Detector to perform a more automated sweep versus just turning the variable capacitor. 

Well, I found this interesting video that's inspired me to add an antenna connector onto the Mini-3 Bat Detector or just invest in one of the Franzis systems this gentleman is using in the video:

In regards to sonic range recording and maybe getting into the ultrasonic range... there is this build that has some great info regarding the most cost effective lowest noise mic on the market, the Rode NT1-A Studio mic:

If you read into the above videos description link, the authors note the amplifier might be good above 100kHz also. See here:
In regards to updating the SB1095 to be even lower noise floor as described here:...…

Electronics and RF Engineering Projects - Spectrum Analyzer Adapter for Oscilloscope

Wanting to document here one of the first systems that I invested in for remote sensing and remote transmission detection, i.e. the TDS-520.  
In order to utlize the TDS-520 as a spectrum analyzer other than the digital FFT function and 500MHz plus bandwidth for quicker reviewing to identify peaks correlating with sound or other bio-metric or perimeter sensors... I decided I'd try to make a spectrum analyzer adapter as I think this will be a good project or set of projects to focus on.  Especially, I'm thinking this will be a good exercise to solidly concepts for ultimately learning more to be able to make modules for the TDS-8000.

Here are the references for starters:
Two plans regarding a spectrum analyzer adapter for an oscilloscope and thinking about using more modern modules with an MCU also. Any suggestions? See the last two referenced links in the link below for design plans (see pg 42 in the last link which is actually pg.41 in the publication): https://randysbench.wordpress…

Remote Transmission Mutilation Assault Result

Went to pick up a Sears SS/16 for some parts in Illinois and along the way and back as usual I'm constantly (technically my handlers/controllers) are always out talking the invasive nuisance imminent threat remote transmission operations.  Well, seems like in new venues/jurisdictions the insurgent malicious invasive nuisance get really pissed off and like to physically assault in sexual assault and battery ways too, i.e. mutilating my anus, previous similar tip of my tongue mutilation, etc.

Well, I get back and could feel something was going on in the back of my throat and on the tip of my tongue so I looked in the mirror and was like... wow... mutilating my tongue again.

Wondering if the plan is to develop into a anal sphincter with hemorrhoids look like last time???? 

Treated the tip of my tongue and my throat and both are healing up... though man... had me worried since I was recently watching a video regarding the massive nuclear weapons testing dome in the Pacific which had a …

Radio Direction Finding Patrol Truck Modular System Brainstorming


Remote Sensing Remote Transmission and Covert Operations Capabilities Li...

First rough draft that needs references in APA format added as well as captions, editing and possibly narration.

Photoacoustic Imaging, Electroporation and Sonoluminescence

Wondering about the capabilities of wireless ways and means to perform the below effects with remote sensing and transmission devices for health and weapons systems?

I'm also wondering what the range of frequency emissions are with the sonoluminescence effect too, as I've not read anywhere regarding in detail and I guess there is an ionizing radiation emission. 
Photoacoustic Imaging:

GPSDO for Position Location, Time and Frequency Standard and updates since May

Found this interesting RTK GPS system module that is accurate down to 1cm, yeah, 1cm is what is claimed.  This video is the source:
Figured I'd share.

Reference comparison oscillators:
Updates Since May:

Hackaday: rtl-sdr-seven-years-later article with comments detailing applications

Hackaday: tuning-into-atomic-radio-quantum-technique-unlocks-laser-based-radio-reception/
Neat system... though I'd like to work on a cost effective DIY wideband laser interferometer to more easily perform a mHz to ̶E̶̶H̶̶z̶̶ PHz spectrum analysis. Still... this system seems interesting. 
The below post corrupted me when I posted a comment, along with watching a video by The thought emporium to make a similar interferometer about the same time and a video by Physics Girl a few weeks later about how the LIGO system operates... got me thinki…