FOSA
@fosatech
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- We build radios and software to support the next 10 billion wireless devices. - Dedicated to improving freedom, privacy, and independence through technology.
Joined October 2022
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Last Seen Profiles
Pinned Tweet
Freedom of speech and information in the digital age will never happen until the underlying infrastructure is re-built in a way that supports it.
⬇️
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STK Sweep beta version 0.2.1 is out, and available on our GitHub! Here's a few of the major changes:
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"Capabilities" don't matter if you can't transport them to where they need to be deployed.
Go to the gym.
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Lmao, we have night vision, thermal, drones, EW, rocket launchers, and the support and resources from a large percentage of the group at the bottom.
You can not comprehend the capabilities available to civilians.
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Comms and SIGINT:
As SDR's become cheaper and more mainstream, we're going to see the potential for a lot of capability from what were previously "dumb" radios, but only if the interface to the RF hardware is open, and hacking is encouraged.
SDR's shouldn't be a black box.
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Raven and Olympus being used to identify and classify a trunked P25 system:
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STK Sweep, our wideband scanning utility, is live on GitHub.
This is still a beta, but we're iterating quickly and looking forward to feedback.
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Final touches and bug fixes are being made to STK Sweep, our wideband scanning tool built for multi rtl-sdr radios like our SDR-STK.
The beta will be available to all SDR-STK customers first, then be released on GitHub. All open source.
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The area highlighted in red is 20MHz wide, the normal real-time bandwidth of the hackrf.
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New T-Mobile ToS for mass messaging:
This is in the new Terms of Service, specifically for A2P 10DLC messaging on T-Mobiles network:
🧵/n
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2.5MHz of bandwith isn't much, but how about 100MHz?
Currently using rtl_power, but will be re-written with a custom back end that allows sweeps under 2s. Will also include and rtl_tcp proxy server to tune into anything you find interesting.
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Using Raven, the Olympus API, and SDR++ to view and label P25 control channels.
Read more here:
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300MHz -- 1GHz
25kHz bin size
83ms sweep time
Closeup in next post ⬇️
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What are you currently using Software Defined Radios for?
What are your biggest pain points when using an SDR?
Comment below! 🔽
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Ground based DF is one thing, but what happens when EW assets end up in space? How effective are they?
Here's an interesting paper on the topic of TDOA/FDOA in space:
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The RF spectrum is one of the great natural resources available to humanity.
Yet even thought there's a finite supply with ever increasing demand, it's still bought and sold at auctions like old farm equipment.
The future of human connectivity requires a better solution.
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Today is the beginning of the future.
The Ølympus beta is now available:
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@radio_research
Getting your product banned in Cali is almost the same level of prestige as being a journalist who gets assassinated by the CIA.
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- Added wideband support for the hackrf
- Option to create multiple rtl-tcp instances and control them independently
- More waterfall and activity bar color options
- Minor bug fixes
We'll be posting more info soon, so go over to GitHub and try it out.
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Olympus lets you access the API directly through Raven. This means you can simply click on a frequency and get all systems registered to it within 60km of a point.
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A dangerous tool in the hands of everyone is safer than a dangerous tool in the hands of a select "trusted" few.
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Freedom isn't magically bestowed by the universe. It's something that needs to constantly be fought for.
We're fans of technologies that create leverage, and our goal is to implement them in a way that is beneficial to the individual.
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rtl_tcp integration completed.
Click on a signal on interest, and instantly tune to it in your favorite SDR software.
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We need more companies and channels to do this.
> get cool weapons (.50bmg, SAW, etc)
> make videos on how to properly employ them instead of just mindlessly magdumping at the range
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Freedom is directly correlated with the amount of leverage in the hands of individuals.
scale.
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Raven allows you to use multiple SDR's over rtl_tcp to tune in to signals you see on the wideband scan.
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Wideband scans with tools like rtl_power are incredibly useful.
Have you used them, and if so, what role do they play in your comms plan?
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Brave >>> Firefox
Chromium-based browsers like Brave tend to render HTML canvasses better. We'll eventually write the rendering portions in WebAssembly, but just an fyi for now.
2-3GHz, 50kHz bin size, 8 sweeps /s w/ hackrf clone.
Closeup below: ⬇️
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The first, and the second!
The Second Amendment guarantees my right to civilian EW platforms
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A tool in the hands of everyone is always safer than a tool in the hands of a select "trusted" few.
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$400 of hardware and some free software is enough to step on ITAR. This only goes to show how absurd and outdated government regulation can be, specifically in a rapidly advancing and open-source field.
Wow, this is crazy - the KrakenRF passive radar code was just forcibly taken down for unknown reasons:
Why is this not all over the news
@hackaday
,
@ctmagazin
,
@LaF0rge
,
@travisgoodspeed
?
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So what would the alternative look like?
How do the people/companies that provide the physical infrastructure still make money?
How could a network function without centralized DNS servers?
How would you allocate the RF spectrum?
We have some ideas, but we'd like to hear yours.
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C/acc
400MHz - 1GHz
The vertical axis represents about 1.4 minutes of time
Imagine this level of mapping (and more) from thousands of locations, across the majority of the RF spectrum, for months of time. This is what we'll provide with Olympus.
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On the right, you can see some P25 TMS data, as well as an analog repeater being keyed up.
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We're working on a proper newsletter feature, but for now, you can sign up for email updates by logging in through the button in the top right corner.
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While RF (jamming/deauth) methods are nice, they're only going to get less effective as more and more drones become autonomous.
Even attacks that focus on GPS will be ineffective on drones that can fly and navigate solely with internal sensors and computer vision.
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@Servers_n_Guns
The goal of STK Sweep is to provide an easy to use interface for doing wideband scans. They're useful for a bunch of stuff like band surveys, comms planning, anomaly detection, etc.
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This flaw (feature) of centralization persists from the ground up.
Even layer 1 of wireless communication, the RF spectrum, has been regulated and bought out to only support the big players.
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Everyone trying to build something decentralized is focused on "platforms" (layers 5+) The reason for this is that the largest infringements we currently see are happening at the platform level.
Facebook, IG, YouTube, etc. are the main places where we see censorship.
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If you care about freedom of speech, you should care about the infrastructure that provides us the ability to speak in the first place.
This is why we're building hardware and software to solve these problems.
Because freedom is built from the ground up.
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rf/acc
Imagine a wireless communications standard where you can buy a COTS RF chip, load some cash on to the internal hardware wallet, and have connectivity across the globe.
No questions, no contracts, no centralized pillars. Data so cheap it's practically free.
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We haven't been to active on social media recently. Currently focused entirely on getting the first batch of SDR-STK orders assembled and shipped.
Don't worry, your favorite radio company will be back soon.
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Current priorities are fixing some performance issues with the production server (currently just uses the Flask dev server), some minor bug fixes, adding a "save scan" option, and a custom backend to replace rtl_power.
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The beta will allow us to kickstart development of the backed for RF data aggregation, as well as machine learning tools and coverage mapping software. We're going to be rapidly developing it to bring these capabilities to market, and providing you access to more SIGINT tools.
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Even though this only applies to commercial customers that are using mass messaging, this is still something you should care about.
Loose definitions like "hate speech" allow for almost completely unchecked regulation and censorship against content that's deemed disagreeable.
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Absolutely! This is because the underlying infrastructure and your connection to said infrastructure is not owned by you.
Your ISP or cell provider own both your data and your connection to the network. Even with E2E encryption, the off switch is in their hands.
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@DoomerTapes
Build tools that people want to use.
If you care about freedom/privacy, your set of constraints is larger, but every piece of technology that currently takes away those things is just something that a human made.
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This means political campaigns and advertisements that are sent over T-Mobiles network can be fined if they are deemed to not fit this arbitrary criteria.
While no one enjoys receiving these kinds of messages, the medium should still remain open and unbiased.
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Want to save your STK Sweep scan?
Right click on the wideband, then 'Open image in new tab.'
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In the last year, the standard for civilian communications has gone from Baofengs to encrypted mesh and voice radios with IP capabilities.
And we're going to keep making comms better.
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@tdsepsilon
Also since we're using rtl-power on the backend, rtl-sdr scans are limited to a 2s integration time.
We're gonna write a custom backend that removes that limitation.
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A2P 10DLC:
Application-to-Person 10-Digit Long Code is a system that allows businesses to send bulk text messages using a 10-digit phone number. This system is primarily used in the United States.
SHAFT:
Sex, Hate, Alcohol, Firearms, Tobacco
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We're curious as to who our audience is on Twitter. If you had to pick, which community would you say you come from?
(Other means other, not both.)
Tech community
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Firearms community
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Other (comment)
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But let's say we succeed. Someone, somewhere, builds the perfect decentralized, free, blockchain, private, web3, buzzword platform.
Is censorship still possible?
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@tdsepsilon
The hackrf is INSANELY fast, since it has an actual hardware sweep mode.
600MHz, 13 scans /s, 20kHz bin size.
The refresh rate and bin size are currently software limited on the frontend, currently working on a fix.
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The Kraken in action.
We've got three on the way, and are gonna be doing some experiments with multiple-site DF using encrypted P25 data downlinks.
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Don't plan your comms off of what was acceptable in last decade's conflict. Electronic Warfare capabilities are getting better, easier, and cheaper.
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Every means of digital communication that you use on a daily basis is fundamentally flawed in regards to freedom of speech and user privacy.
Every bit of data that you send will at some point go through the hands of someone who can stop it.
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