Mahiteam is a Russian company that produces the relatively popular Malahit DSP1/DSP2 and Malahit DDC portable SDR radio which are great for shortwave listening, but can also cover up to 2 GHz. Manuel L. has been following developments and notes that Malahiteam are offering the ability to upgrade their DSP1 (and any DSP1 Chinese clone) into Malahit 2 units by sending the device in for a chip replacement. Manuel writes:
Hi. Recently it is possible to upgrade the Malahit DSP1 (original) and also the China clones (if registered in Russia) of the Malahit with a new CPU and if necessary a new audio codec chip. This upgrade has been officially released by the Malahiteam the developers.
This allows custom DSP2 firmware to run on the DSP1 and clones. This makes the device more powerful and also has the option of installing a Bluetooth board and controlling it via the software, as is the case with the DSP2.
This upgrade can be carried out directly in Russia by the Malahit team.
For Europe this is done by Jochen Köster DC9DD (Malahit Servise Europa) who converted the first DSP1 and China clones outside of Russia.
In the US, the future KD9NXV makes Mark Roy (USA Service Malahit).
I have tested the first conversions outside of Russia and it is a very big upgrade of the devices. They work a lot better now. I have shown this in several YouTube films. More information and contacts to the service teams outside of Russia can be found at Telegram and the Malahit Facebook group
It also appears that the Twitter account for ADS-B Exchange @ADSBexhchange itself has been suspended too, as well as various other flight tracking Twitter bots that were using data from ADS-B Exchange. Elon Musk's tweet indicates that legal action is being taken against "Sweeney & organizations who supported harm to my family". It is unclear if this implies that legal action will be taken against ADS-B Exchange.
Elon Musk's Real-Time Doxxing Tweet
ADS-B (Automatic Dependent Surveillance–Broadcast) is a radio signal that is required to be broadcast by all aircraft for the purposes of air traffic control and collision avoidance. The ADS-B signal provides real time unencrypted location information that anyone with a low cost radio receiver like an RTL-SDR and cheap computer like a Raspberry Pi can receive, decode and turn into a live map of aircraft in the surrounding area.
ADS-B Exchange is an ADS-B aggregator that collects ADS-B data received from volunteers all over the world that are running RTL-SDR and other SDR dongles or radios operating as ADS-B receivers. Compared to more commercial flight tracking services like FlightAware and FlightRadar24 (who also make use of volunteer stations), ADS-B Exchange guarantees that they will not censor the tracking of military, police or private jets. This has generated debate in the past over whether this philosophy is either more moral or less moral.
ADS-B Exchange has been key to projects like "Dictator Alert" which tracks the real time location of the private jets of known dictators.
The Organized Crime and Corruption Reporting Project (OCCRP) has also made use of ADS-B Exchange data in the past to uncover the role that US civilian aircraft contractors are playing in the East African "kill chain".
Media have also used ADS-B Exchange to track the movements of the military aircraft like Black Hawk Helicopters and CBP Predator drones that were used to monitor crowds during the George Floyd protests.
Previously Elon Musk indicated that he would not ban the account following his private jet, however after the stalker altercation he appears to have rapidly changed his tune. Even without the Twitter bot, private jets can easily be tracked via ADS-B Exchange so any dedicated person could still gather this information without too much hassle. So it seems likely that legal action will be taken against ADS-B Exchange as per Elon's tweet. Other ADS-B data aggregators like FlightRadar24 and FlightAware should be safe from legal action as they do censor private aircraft upon request. Hopefully ADS-B exchange has prepared for this legal battle, which was probably an inevitable unfortunate outcome from their policy. If not from private jet owners, then the military or police would likely eventually take action if the data ever became a problem.
Over on YouTubem channel NotaRubicon Productions has uploaded a video describing how a KrakenSDR was used to find the location of a person jamming a repeater site. Amateur radio enthusiasts can utilize VHF or UHF repeater towers, which receive signals from lower power handheld or other radios, and retransmit that signal at high power on a slightly different frequency over a much wider area. Unfortunately malicious people can jam these repeaters by transmitting at the same time as other users, effectively denying use of the repeater by legitimate users.
If you weren't already aware, KrakenSDR is our 5-channel coherent radio based on RTL-SDRs, and it can be used for applications like radio direction finding. We successfully crowd funded the device on Crowd Supply, and the device is currently available for sale on Crowd Supply, Mouser and direct from our website krakenrf.com.
In this video I read the story of how we caught the jammer that had been jamming our GMRS repeater for months, and how by using the KrakenSDR Radio Direction Finder (RF locator), we were at his house in 1 hour.
The KrakenSDR can track a signal being transmitted from 100Mhz to 1Ghz - so I can track ham repeater jammers, GMRS repeater jammers, ham-radio transmitters, GMRS radios - pretty much any transmitter with a signal strong enough for you to receive.
How The KrakenRF Located Our Repeater Jammer In 1 Hour. Overview of the KrakenSDR Radio Locator
We just wanted to note that after a few months delay due to a missing shipment carton which has just been found, the SDRplay RSP1A Enclosure Upgrade set is back in stock at Amazon for US customers. We also have stock available in our store and affiliated marketplace sites for non-US customers.
This is a premium aluminum metal upgrade enclosure for the SDRplay RSP1A. Helps block RF interference and protects the RSP inside the sturdy enclosure. We don't make batches of this enclosure often, and this batch could be the last if demand dwindles, so if you are interested please order before stock runs out for good.
The kit includes 1x black aluminum metal enclosure with two labelled side panels, 1x black semi-hardshell carry case, 1x thermal pad to keep the RSP1A cool and mechanically stable inside the enclosure, 1x accessory set including enclosure screws, GND lug bolt set and 3M anti-slip rubber feet.
Please note that the set does not include the RSP1A.
Thank you to Viol for submitting news about the latest update of his uSDR software. uSDR (aka microSDR) is a lightweight general purpose multimode program for Windows that supports the RTL-SDR, Airspy, BladeRF, HackRF and LimeSDR radios. Viol highlights the latest features in the new update below:
Airspy HF+ Discovery frontend support
ExtIO*.dll interface support. Copy ExtIO*.dll and all dependencies to the root folder and have a fun
ExtIO_USRP.dll and all dependencies for USRP B210 included. Just install Zadig libusb driver and go
LimeSDR multiple frontends switch fixed
FM demodulator with inverted audio spectrum
DCS decoder
additional C/C++ source examples for remote IQ passband processing TCP client
advanced IQ file playback options
display hold peak spectrum mode, zoomable and panable plot, customized colors
As always all descriptions, screenshots and binaries could be found on
A few weeks ago the tinySA Ultra was released. This is a spectrum analyzer capable of operating between 0.1 - 800 MHz, or 0.1 MHz - 6 GHz with the 'Ultra' mode enabled. A spectrum analyzer is a tool that allows users to visualize signals on the radio spectrum.
Previously the standard tinySA was released back in 2020. The Ultra version brings enhancements to the frequency range, signal generator range, bandpass filter range as well as an optional 20dB LNA, and a larger 4 inch color display.
The TinySA Ultra costs US$119 + shipping direct from the Aliexpress store in China, or $129.95 from R&L in the USA (currently out of stock). The full list of resellers can be found at https://tinysa.org/wiki/pmwiki.php?n=Main.Buying.
We wanted to thank RTL-SDR.com reader Ben for providing us with links to a bunch of reviews of the tinySA Ultra which we are posting below.
This is just a quick note to say that the RTL-SDR Blog V3 silver dongles are back in stock at Amazon USA after having taken a bit longer to arrive than usual. Currently only the individual dongle and separate multipurpose dipole antenna sets are in stock, and we expect the dongle+antenna bundled sets to be back in stock in January 2023.
International customers can continue to order from our webstore and associated marketplaces via our store page at www.rtl-sdr.com/store.
RTL-SDR Blog V3 (Silver)
Upcoming 2023 Black RTL-SDR Blog V3 Dongles (Cosmetic Redesign)
We also want to give a heads up and note that in the next few months you might start seeing black RTL-SDR Blog V3 dongles in our stores, marketplaces and resellers. Going into 2023 we will be making a cosmetic change to our dongles (note that there is no changes to the highly tuned circuitry). There are two reasons for this cosmetic change.
The first is to try and better differentiate our original product from all the clones that have been popping up recently. Manufacturers of fake RTL-SDR Blog V3 clones have been getting closer and closer to copying our external design exactly. The internal circuitry of the clones however have often been poorly implemented, with broken features and poor performance. This results in a higher support burden, and damage to our brand when the clones inevitably perform poorly.
The second reason is for regulatory compliance with the FCC. Devices like this must have a FCC regulatory statement printed on the body, we have to add the UKCA logo for Brexit UK, and increase the size of the compliance logos as well. Moving forward this will eliminate any possible regulatory problems with Amazon or bulk imports, which are becoming stricter every year.
The new enclosure design uses a special black plating that like our silver models retains full electrical conductivity (normally electrical conductivity is not possible with most black plating's, but we investigated many solutions and finally found an appropriate one). Maintaining electrical conductivity ensures that shielding of the circuitry from interfering signals works properly. The text is also laser etched on, ensuring that it cannot be erased.
New black redesign of the RTL-SDR Blog V3 dongle. Coming in 2023. (Front)New black redesign of the RTL-SDR Blog V3 dongle. Coming in 2023. (Rear)
DEF CON is a yearly conference with a focus on information security. At this years DEF CON 30 conference various talks on RF related topics were presented. In the past few weeks talks have been uploaded to YouTube for all to watch. Below we highlight a few we found interesting. The list of all main talks can be found on the Defcon YouTube channel, and talks from the RF Village can be found on the RF Hackers Sanctuary YouTube page.
J9 - Biohacking Using SDR When You Don’t Know What You’re Doing
Security Researcher and BioHacker J9 presented an interesting and entertaining talk about how she used an SDR to listen in and decode a wireless pH sensor pill she ingested as part of a medical test.
What would you do if you were implanted with a medical device that broadcasts every 12 seconds?
Starting with loads of curiosity and very little knowledge about RF, how to use a software defined radio (SDR), and no knowledge of how to decode captured RF signals, I embarked on an adventure to teach myself something new. Jumping head first into the RF CTF helped greatly!
This presentation starts with cocaine and ketamine (in a controlled medical setting) and includes a near-death experience and new skills attained by building on the work of those who came before me. The end result of this adventure led me to the US Capitol to sit down with Senate staffers about the security and exploitability of medical devices.
DEF CON 30 RF Village - J9 - Biohacking Using SDR When You Don’t Know What You’re Doing
Erwin Karincic - Have a SDR? - Design and make your own antennas
In this talk Erwin Karincic explains how to design and make custom PCB antennas using home based or low cost techniques.
Most Software Defined Radios (SDRs) process a wide range of frequencies usually ranging from few MHz to multiple GHz where different antennas are used to pick up signals in a specific subset of that range. All applications using SDR require antennas to operate efficiently at very specific frequencies. Most inexpensive commercial antennas are designed either for wider ranges with lower gain over the entire range or very specific known frequencies with higher gain. The problem occurs when the researcher performs an assessment of a device and requires the use of specific frequency for which an antenna with high gain is not readily available. Most security researchers within wireless domain have outlined that their specific attack or exploit could be executed at higher range if antenna had better gain at that specific frequency. This talk focuses on bridging that gap by providing a way for researchers to create their own patch antennas without deep electrical engineering experience.
DEF CON 30 RF Village - Erwin Karincic - Have a SDR? - Design and make your own antennas
Andrew Logan - Tracking Military Ghost Helicopters over Washington DC
In this talk Andrew explains how ADS-B receivers, combined with ATC communications, public announcements and crowd sourced visual identification have helped track the activity of military helicopters operating over the Washington DC area.
There's a running joke around Washington D.C. that the "State Bird" is the helicopter. Yet 96% of helicopter noise complaints from 2018-2021 went unattributed: D.C. Residents can not tell a news helicopter from a black hawk. Flight tracking sites remove flights as a paid service to aircraft owners and government agencies; even in the best case these sites do not receive tracking information from most military helicopters due to a Code of Federal Regulations exemption for "sensitive government mission for national defense, homeland security, intelligence or law enforcement." This makes an enormous amount of helicopter flights untraceable even for the FAA and leaves residents in the dark.
What if we could help residents identify helicopters? What if we could crowd source helicopter tracking? What if we could collect images to identify helicopters using computer vision? What if we could make aircraft radio as accessible as reading a map? What if we could make spotting helicopters a game that appeals to the competitive spirit of Washingtonians? And what if we could do all of this... on Twitter?
DEF CON 30 - Andrew Logan - Tracking Military Ghost Helicopters over Washington DC
