Radio for Everyone
- FM Audio Transmitters - Portables and Car Hands-FreeFM Audio Transmitters - Portables and Car Hands-FreeI'm using FM transmitters for years, both portables and vehicle versions, and pretty much used the majority of types on the market, so here's how they work and which ones I recommend.How FM transmitters work?Output audio from a device via FM transmission standard: you set a frequency on […]
- Review: Nooelec Rattlesnake 3-antenna kitThree antennas with magnetic mount and coax for $16:Review and observations are based on over half a year's use, summary: order from manufacturer, Amazon USA, or eBay right away. Rattlesnake kit is the best value aftermarket antenna package I ever came across. Period.Direct competitor on price ($15 on Amazon) is rtl-sdr.com's antenna kit, separate review here.First impressionsHeavy, feels good when opening the envelope:M5: Screw standard referring to […]
- Portable Bluetooth Audio Signal ReceiversReceive an audio signal up to 50 feet / 15 meters - best replacement for wires, also work as hands-free in a vehicle. Hands-on guide and five units tested and compared: cheap from China, for Hi-Fi, and midrange and expensive hands-free. Regardless of locale and prices, these four types cover most flavors on the market.What […]
- Maximum USB cable lengthQuestion often comes up, Answer: 27 feet / 9 meters with RTL-SDR dongles:For testing, I tried four separate RTL-SDR dongles in image above: rtl-sdr.com v3, Nooelec Mini 2, Nooelec E4000 SMArtee and regular Nooelec SMArt.USB connector cable is crucial, as mentioned in a previous post detailing stuff I'm happy with, blue 5 feet / 1.5 m […]
- RTL-SDR Dongles Image GalleryStudio Photos of over 20 RTL-SDR dongles on the market:More than 200 high-resolutions PCB, case and comparison images by clicking here.
Crazy Danish Hacker
- Mr Robot S01 E01 Hack Review by CDHIn this video I review some of the hacks in Mr Robot Season 1 - Episode 1!
- Capture The Flag – PicoCTF 2018 Series #2 + GIVEAWAYIn this video I continue the PicoCTF challenge, and talk about how I solve each of the challenges!
- Capture The Flag – PicoCTF 2018 Series #1In this video I begin the PicoCTF challenge, and talk about how I solve each of the challenges!
Blog – Hackaday
- Enjoy A Refreshing Beverage With The Chilled Drink CalculatorHackers are quite often the price conscious type, unwilling to pay jacked up prices for cold beverages when they can be purchased warm and in bulk for much lower cost. However, when guests are on the way and time is running out, it’s crucial to chill the drinks down to …read more
- Square Laser Harp is HipYou know, we hadn’t realized how tired we were of vertical laser harps until we saw [Jonathan Bumstead]’s entry into the 2019 Hackaday Prize. It’s all well and good to imitate the design of the inspiring instrument. But the neat thing about synths is that they aren’t confined to the …read more
- Sensor lets Gestures and an Arduino Control the TunesEvery time we watch Minority Report we want to make wild hand gestures at our computer — most of them polite. [Rootsaid] wanted to do the same and discovered that the PAJ7620 is an easy way to read hand gestures. The little sensor has a serial interface and can recognize …read more
ZeroSec – Adventures In Information Security
- DNS - Setting the Record StraightThe domain name systems, more commonly referred to as DNS is essentially a phone book of the Internet. Ler's take a deep dive into DNS.
- Bloodhound 2.2 - A Tool for Many TradecraftsBloodhound is a tool for enumeration of an active directory environment. It maps out relationships between active directory objects and is useful for Pentesting and Red Teaming.
- Surviving in the Ring: Expanding Your HorizonsBefore We Dive in, thank you to each and every single person who has read, downloaded, purchased, shared and even copied my book!Following the success of my first book, it has been well received far and wide expanding the knowledge of individuals and allowing them to understand the basics
Genesys Guru Blog
- Genesys Integration on The Wire (IOTW)Following on from a previous post on Genesys Management 2.0 here I’ve been doing some additional work on integrating Genesys environments with Elasticsearch. The result is what I call Genesys Integration on The Wire (IOTW). Integration on The Wire (IOTW) is a technology which enables system level integration based on a “zero touch” […]
- Genesys Management 2.0Hi – I’m back! Unfortunately, due to client confidentiality I’ve not been able to blog about Genesys work projects for a few years. Let’s change that .. This post is about something I have been looking at for several years in the form of a shelved project which gets events from Genesys components via the […]
- 2016 Xmas Light show using Raspberry Pi ControllerEnjoy!
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- Sending Samples to Python from GRC using ZMQ SinkWhen we need to process some data generated by an SDR device, the most convenient approach we have currently is saving the data into a file and then reading the files from Python. However, if the requirement is to process data in real-time as they are generated from the SDR device, saving to a file […]
- Starting Viber with too large resolutionAfter installing a brand new Ubuntu 18.04 LTS on my computer, I made some adjustments to the font sizes of the operating system in order to make it better suit for my perception. However, I realized that something is wrong after installing Viber on my desktop. The GUI of the Viber application appears so huge […]
- Truly Reproducible Research PapersA slide from Prof. Barry Smyth's presentationIf you perform an experiment and get some interesting results which cannot be redone and get the same results by somebody else, something is wrong with your finding. This is called reproducibility of research. If it is not reproducible, it is not science. You might think that systematic research […]
AMSAT-UK
- QO-100 geostationary satellite talk at Hamfest 2019Paul Marsh M0EYT gave a presentation titled ‘All you need to know to get going on Es’hail-2 / QO-100 geostationary satellite’ at Hamfest 2019 in Dorset on Sunday, August 11. The 50 minute talk covered satellite information, software, hardware, dish … Continue reading →
- 19th Global Symposium for RegulatorsSmall-Satellites, High Altitude Platform Stations (HAPS) and 47 GHz were among the topics discussed at the ITU-D 19th Global Symposium for Regulators in Port Vila, Vanuata, July 9-12. The background paper ‘Preparing for WRC-19 – Understanding the issues at stake … Continue reading →
- AMSAT in special 300th edition of ICQ PodcastThe popular ICQ Amateur Radio Podcast has been running for over 11 years and on August 4, 2019, the ICQ Podcast team released their 300th edition which features an interview with Treasurer and Past President of AMSAT Keith Baker KB1SF. … Continue reading →
Gough's Tech Zone
- Review: Sennheiser PXC550 Wireless Adaptive Noise Cancellation HeadphonesMany moons ago, I upgraded to a Sharp Aquos S3 which caused a new problem for me as it lacked the familiar 3.5mm stereo headphone jack which I was using my AudioTechnica ATH-ANC9 with. While there was an included USB-C … Continue reading →
- Lucy Helton’s SSTV Ham Radio Project: a “Reception Experience” Remixed MicrositeDuring the period of 9th to 23rd April 2019, Lucy Helton (KD2MFV) partnered with Jón Þ Jónsson (TF3JA) to embark on creating a transmission artwork which was known as the “SSTV Ham Radio Project”. The transmissions were sent on the … Continue reading →
- Experiment: Examining Solid-State Drive Temperature ReportingRegular reader and frequent contributor Franc e-mailed me around two weeks ago with an interesting request – “Would you consider investigating how SSDs report their temperatures?” He reports of discrepancies in temperature readings in a Kingston A400 NVMe version versus … Continue reading →
Compass Security Blog
- Privilege escalation in Windows Domains (2/3)This second article about privilege escalation in Windows domains describes how to propagate by aiming for passwords that are lying around.
- Privilege escalation in Windows Domains (1/3)This first article of our series about privilege escalation in Windows domains demonstrates how to get a foothold by relaying credentials from users.
- From Open Wi-Fi to WPA3Security in Wi-Fi networks has been, at some point non-existent, then questioned, improved and questioned again over the last two decades. This post provides an overview over the latest developments in Wi-Fi and outlines attacks and defenses.
0xicf
- ClearEnergy ransomware can destroy process automation logics in critical infrastructure, SCADA and industrial control systems.Schneider Electric, Allen-Bradley, General Electric (GE) and more vendors are vulnerable to ClearEnergy ransomware. Researchers at CRITIFENCE® Critical Infrastructure and SCADA/ICS Cyber Threats Research Group have demonstrated this week a new proof of concept ransomware attack aiming to erase (clear) the ladder logic diagram in Programmable Logic Controllers (PLCs). The ransomware a.k.a ClearEnergy affects a massive […]
- Flaws in Samsung’s ‘Smart’ Home Let Hackers Unlock Doors and Set Off Fire AlarmsA smoke detector that sends you a text alert when your house is on fire seems like a good idea. An internet-connected door lock with a PIN that can be programmed from your smartphone sounds convenient, too. But when a piece of malware can trigger that fire alarm at four in the morning or […]
- Waze | Another way to track your movesMillions of drivers use Waze, a Google-owned navigation app, to find the best, fastest route from point A to point B. And according to a new study, all of those people run the risk of having their movements tracked by hackers. Researchers at the University of California-Santa Barbara recently discovered a Waze vulnerability that allowed […]
Nick Whyte
- 100 Warm Tunas 2018 Prediction AnalysisOver the space of 6 weeks, 100 Warm Tunas collected a large sum of data and chugged away at it to make some predictions about what the Hottest 100 of 2018 would look like. In summary, We collected 6,234 entries (13.6% decrease since 2017 🔻). We tallied 58,463 votes across these entries (12.9% decrease since […]
- 100 Warm Tunas has a new home!100 Warm Tunas has found a new home this year! This year’s results, along with the past 2 years can now be found at 100warmtunas.com. The existing domain (100-warm-tunas.nickwhyte.com) will simply perform a 301 permanent redirect to the new domain, so all existing inbound links should be unaffected.
- 100 Warm Tunas 2017 Prediction Analysis🔥💯 🔥💯 Over the space of 6 weeks, 100 Warm Tunas collected a large sum of data and chugged away at it to make some predictions about what the Hottest 100 of 2017 would look like. Along the way we encountered a bug in the collection process, however data was backfilled and showed that I […]
DB6SW (KF5OBS)
- Arduino |Automatically Save Variables to EEPROM on Power-DownA recurring challenge for Arduino projects is that variables are volatile and will be lost completely unless previously stored to some sort of non-volatile storage such as de inbuilt EEPROM. This article shows a minimalistic approach to detect sudden loss of power and automatically store a variable to an EEPROM adress. First I should mention […]
- Diamex Prog-S2 | Arduino IDEThe Diamex Prog-S2 is an universal USB ISP programmer vor various microcontrollers including Atmel AVRs. This article shows how to integrate the programmer into the Arduino IDE There are a few articles on the web that talk about the Diamex Prog-S2 and Arduino. But it seemed to me like they were either outdated or faulty. […]
- Automated Forward Gain MeasurementThis article is going to take you into the world of automation. Using MATLAB and commercial off-the-shelf bits and pieces, this article will show how to measure the forward gain of a RF device. For a long time now I had a bunch of Mini Circuits portable test equipment bits and pieces sitting around. S […]
owenduffy.net
- XH plug savers on the STC U8W & U8 programmerSTC produce the U8W & U8 programmers for a range of their chips. U8W The thing has a JST 7way XH socket provided for an ISP connection to a target board. It is accessed through a cutout in the acrylic housing, but the cutout is no bigger than the shoulder on an XH plug and […]
- Garden hose couplers – there has to be a better wayA continuing frustration is garden hose maintenance. We use reinforced hose that comprises essentially three layers, an inner plastic layer, a braided fibre reinforcing layer and another layer of plastic. Though these layers are bonded in new hose, there is potential for them to separate in service resulting in the reinforcing braid pulling back into […]
- RF transformer design with ferrite cores – saturation calcsFerrite cored inductors and transformers saturate at relatively low magnetising force. #61 material example Lets work through an example of a FT50-61 core with 10t primary at 3.5MHz. Magnetic saturation is one limit on power handling capacity of such a transformer, and likely the most significant one for very low loss cores (#61 material losses […]