Delta Seven Sends: SDR Phone Commo in the Current Color Revolution
Sent while I was out West training Patriots, the following is an interesting take on out-of-the-box thinking when applied to urban communications using SDR as a backbone. Phones, as a rule, ALWAYS TRANSMIT LOCATION DATA WHETHER ACTIVATED OR NOT. A better option is a WiFi tablet. I don’t suggest this as a standalone means of communication- folks from class know better and can tell you why- but it is an option. Further, check out this AAR on CrimethInc of the first battle of the color revolution in Minneapolis. Its a coordinated machine. They have a goal. Better make damn sure you know where you stand in the coming days. Meanwhile, I’m training. Come join me.
Scout,
Mike Hotel and I both read your article this weekend on the Antifa Command and Control structure. As you can imagine, a large part of our discussion about the article focused on the smartphone/SDR comms they were using. I wanted to share some of our thoughts since there seemed to be some confusion in the comments section about what was actually being done.
Our focus was on the SDR, not the smartphone. We believe the smartphones are simply being used as small computers not as phones. They are being used to interface with the SDR which is then used for transmitting and receiving digitally encoded voice communication.
A couple of options that we found for commercially available SDR transceivers that would fit the description given are the LimeSDR, LimeSDR mini and PlutoSDR.
Each of these SDR transceivers can interface with software for Android phones that allow them to send and receive voice communications using digital modes. QRadioLink is just one example of a software package that appears to be able to do this.
The SDR transceivers can operate on a very wide range of frequencies which would allow selecting a frequency best suited for the operation without having to change gear each time they wanted to move to another part of the radio spectrum.
The comment in the article about the weak encryption also makes sense. Since these are tactical comms they only have to remain secure for a short period of time. Strong encryption isn’t necessary. The encryption only needs to protect the communication long enough for the command to be carried out. Would it be best if the encryption was never broken? Yes, but once the command given in the communication has been carried out the value of the decrypted communication drops exponentially especially if it contains little information about the sending and receiving parties.
We have not spent a lot of time on this yet, but it looks like you could provide 2 way secure comms to a company commander at a total cost of about $250 – a $150 SDR transceiver, $100 (or less) Android pre-paid phone (no service needed or wanted), a set of earbuds with a microphone (probably came with the phone) and a free software package.
Once you standardized on the hardware and software, setting up duplicate units could be done quickly by following a checklist. Copies of the software package could be kept locally and transferred by USB or an isolated network so the phone never touches the internet. Take a pre-paid phone that was bought with cash more than 30 days ago, turn it on, install the SDR software from a USB, set up the SDR software and send it out the door with a company commander. If it looks like he/she will be arrested then they can dispose of the phone and SDR. Breaking the SDR is not necessary. Breaking the phone is preferred, but the actual value of breaking the screen on a cell phone in hindering a forensic examination is highly over rated. Even if the phone is not broken, the use of some basic security precautions on the front end will make accessing any data on the phone very difficult. Even if the data is accessed linking it to a specific person or group will be difficult because of the lack of cell service and internet activity. Plus, the encryption was on the voice transmission not on text. My guess is little if any data is left from the SDR application that could be recovered even if the forensic investigator knew what to look for.
The frequencies chosen for their communications could be anywhere in the radio spectrum but are probably VHF or higher. Personally, I would look at options around 400 MHz and 900 MHz. Both seem to work well in urban environments, have ranges of license free frequencies, industrial/business frequencies and amateur frequencies. Plus, repeater equipment is readily available for those portions of the spectrum that is relatively low cost and portable. With a repeater on a high building, the low power SDR transceivers have a much greater coverage area.
Looking for their communications only requires an SDR receiver and a laptop. It could possibly be done with a phone or tablet, but I think a serious effort to find and decode these communications is well beyond the capabilities of that hardware. A couple of laptops listening to and recording sections of the radio spectrum, especially in the UHF section, would be ideal. SDRConsole and QRadioLink are the software packages I would try first for decoding based on the short amount of research we have done so far.
Here are some articles and videos I found that help show some example of what they may be doing:
Sorry for the long email, but I wanted to share our thoughts in case they maybe of some benefit to you or others. We would love to hear your thoughts on this topic. Please let us know if you think we are off base on this – given our proximity to Asheville the possibility of a real life test in the future is very real to us.
On another note, this highlights how different the left and the right have approached comms. They have focused on radio comms for tactical communications when the internet and cell towers are shut down, but rely on the internet for strategic comms. We have done just the opposite – we can send messages across the country and within regions of the country on HF 24/7 regardless of band conditions, but we can’t seem to coordinate anything local without cell phone service for calls, text and email. You have been one of the lone voices in promoting tactical comms using RF. Please know that what you are doing is needed and appreciated even more than we can express.
God bless,
Delta Seven
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5
They don’t have to have “trained operators” using their system .. and by their system .. I mean the CIA’s system.
KISS is still the ideal method .. and with ready off the shelf (aka rots) they have done what we have failed to do ..
Also remember .. their folks are expendable and training beyond plug and play is not an option.
(This is a good email on the enemies sdr tech.)
The $400 Lime SDR’s 1 watt of transmit power will get you about 400 meters of range.
A 2 meter rig with 65 watts will get you around town for $130.
Use a One Time Pad for encryption.
Charlie .. that’s not their goal .. this is tactical short range comms in an urban environment.
They don’t want everyone catching their comms from a country mile away.
This is almost as good as a directional in keeping 3rd paties out of the loop.
*Reply to Charlie Prime’s comment* (since it won’t let me reply directly to it)
This is exactly what I was thinking while reading the article. Most SDR’s like that don’t put out much power, and then you get to carry a bag of crap around with you hoping that cables don’t come loose etc.
The whole thing just sounded over complicated and over thought.
They’re using blue-tooth/wifi meshing if anything like that. Or just cell service with burner phones/cards.
A voice encryption app isn’t outside the realm of possibility though (used with the above).
Or you just use a DMR radio with encryption turned on and on low power.
Odroid and other ARM board makers (think Raspberry Pi competitors) are starting to make items like this:
https://liliputing.com/2019/12/odroid-go-advance-is-a-55-handheld-game-system-running-ubuntu-coming-in-january-2020.html for those that are a bit more tech savvy.
The advantage is there’s no cell phone antenna, no cameras, no microphones, and anything else like Wifi / Bluetooth can be de-soldered if it’s on the board and you really don’t want it. You can often purchase a more powerful device which some SDRs need. They can run various Linux distros along with Android.
The downside to these hobby boards is setup time, software compatibility, and an online purchase could be more conspicuous unless you can find something like them at a nearby Fry’s or MicroCenter.
Another big plus: you can purchase a WiFi dongle that can hook up to a real SMA connector going to a Yagi. Now you can download all those needed software packages from a coffee shop’s WiFi while 1/2 a mile away.
Followup to my original comment…
I see no one (including myself) mentioned the goTenna.
It would most closely fulfill the original description in the article of an sdr connected to a phone with encryption, while being COT, and simple enough to use, and without the “bag o’ junk” issue. Plus the range is better than any of these bluetooth mesh apps.
I would not be surprised if this is what they are using.
Has anyone actually seen their equipment? Just thinking that the sdr might be being used as a ad-hoc wifi router and the minions are just using WiFi and a messaging app to communicate. This could be encrypted and would only require a few pieces of hardware for a given area, instead of equiping everyone with expensive and complex systems.
What kind of antennas have been spotted? Large or small? Could be a sign of the frequency in use.
Has anyone run a frequency sweep during these operations to see where there might be extra activity on the radio spectrum? Just thinking out loud here.
This is awesome! Thank you!
https://youtu.be/WXuQERL_e8M
fyi
fyi ..
https://youtu.be/WXuQERL_e8M
4.5