Listening Posts: An Intro to SIGINT (S2 Underground)

-


Listening Posts: An Intro to SIGINT (S2 Underground)

https://www.youtube.com/watch?v=Nam87B2u6bo


00:00 - Introduction and History
03:48 - Flight Tracking Apps
06:13 - ADS-B Receivers
07:39 - Software Defined Radios
11:01 - Scanners
15:43 - HackRF Devices
17:35 - Recap
17:58 - Your Own Communications
19:39 - Feasible and Realistic
25:25 - Have a Goal
26:24 - Shelter
29:30 - Automation
30:18 - Integration
31:27 - Closing Thoughts

Scanning and monitoring of radio frequencies used by public service agencies (i.e., police and fire departments) can provide advanced warning of potential threats and hazards in an area, as well as providing first-hand information about a developing situation from the responders on scene.
 
Today most public service agencies, along with other government agencies, and many businesses have transitioned to digital and trunked radio systems. Within the Amateur Radio Service digital modes such as DMR, D-STAR, and C4FM are popular. While analog radio traffic certainly still exists, any truly effective monitoring of radio traffic for intelligence purposes will require a scanner capable of receiving digital and trunked radio systems.

Many hand-held transceivers (HTs) have expanded receive capability and the ability to scan frequencies within their programming range, but these HT scan functions suffer from a serious weakness, that of being able to only scan analog frequencies. While scanning a few analog frequencies may be fine for the radio hobbyist, it is not an acceptable alternative for SIGINT collection and communications support for public-safety and security missions. 

Comments

Post a Comment

Popular posts from this blog

The Facts About Radio Communication Distance

-
Image
What’s the range for a radio to communicate with someone? How many miles? This is almost the most common question people ask before getting a new two-way radio. But if you check the answers for the same radio, you may find many disappointed people saying that only 0.5 mile, but also some saying 3 miles, 5 miles, and so on. Why they're so different? Because the type of terrain and equipment can greatly affect the talking range. You often see ads for two-way radios saying "up to 36 miles" or more. Here the keyword in the advertisement are "up to". This maximum range is more theoretical than realistic. So how far can you really expect to talk? The key considerations that affect range are: signal type, antenna, obstructions, and signal strength (wattage). No single factor is a silver-bullet to extend your communication range. But taken in combination, they can mean the difference between getting 1/2 mile range, vs 6 miles or more. This article from Baofeng discusses
Read more

What Gets Destroyed in an EMP (And How to Protect)

-
Image
EMP is a low-probability threat, but one with potentially high consequences should it occur. Dr. Arthur Bradley, a recognized expert in EMPs, their effects and how to protect against them, has a video where he offers suggestions on how to protect against an EMP. https://www.youtube.com/watch?v=JNBj3nkVqEQ Dr. Bradley's recommendations are based on his research and would seem to offer a reasonable degree of protection against EMP... unlike some suggestions we see in "prepper" groups suggesting such things as using a microwave oven as a Faraday cage. There is a common misconception that a microwave oven is a Faraday cage. It is not. Not even a close approximation. Go in your kitchen and open the door of your microwave. Look at the mating surfaces between the door and oven. There is no bare conductive metal at all, usually power coated sheet metal or plastic on both surfaces. It is essentially *wide open* from an RF perspective except right at 2.4GHz. Attenuation at 2.4GHz
Read more

Survivalist and Preparedness Blogs, YouTube Channels, and Downloads

-
Image
  There are a large number of Blogs that provide survivalist and preparedness information. Many of these Blogs are an excellent resource, others perhaps less so; but they all provide something of interest to someone. Here is a list to add to your own favorites: A Year Without the Grocery Store - https://ayearwithoutthegrocerystore.com/     American Civil Defense Association - https://tacda.org/ AMP-3 - https://www.amp-3.net/ AmRRON - https://amrron.com/ Ask A Prepper - https://www.askaprepper.com/ Backdoor Survival - https://www.backdoorsurvival.com/ Before It's News (Survival) - https://beforeitsnews.com/survival/ Brushbeater - https://brushbeater.org/ Bunker Basics - https://bunkerbasics.com/ Cascadia Survivalist - https://cascadiasurvivalist.blogspot.com/ Citizens Committee for the Right to Keep and Bear Arms - http://www.ccrkba.org/ Common Sense Home - https://commonsensehome.com/ DIY Homeschooler - https://diyhomeschooler.com/ Doom and Bloom Medicine - https://www.doomandbloom
Read more