Liên kết hữu ích
- MARTIN - G8JNJ - ECLECTIC AETHER - Adventures with Amateur Radio
- Owen Duffy VK2OMD (ex VK1OD) - Good practical information relating to Electronics, Antennas, Feedlines, Baluns & just about everything else
- Steve G3TXQ - Home of the Broadband Hexbeam and 1:1 Balun common mode impedance charts
- Tom W8JI - Lots of practical antenna information and theoretical analysis
- Dan N3OX - Lots of antenna practical construction information (especially verticals) and theoretical analysis
- Adam AB4OJ/VA7OJ - Excellent information relating to Icom Radios and associated items
- Alan K0BG - Everything you will ever need to know about mobile operation and compact antennas
- Phil AD5X - Lots of very interesting articles and construction projects
- Ian GM3SEK - Lots of practical design info. Especially these pages on cost effective common mode choke design
- Jim KY9C - Loads of design and measurement information relating to common mode chokes
- Chuck W1HIS - More notes on ferrite common mode chokes. Showing what you need to do to reduce EMI problems
- L.B Cebik W4ML (SK) - The best resource for antenna design and modelling (free but you need to create a login account)
- https://re-ws.pl
One-Forever Radio
- Top Internet Radio Shows and Podcasts in Surrey, BC—And Where They Store Their GearPodcasting and internet radio have seen tremendous growth in recent years, and Surrey, BC, is no exception. From local business insights to cultural discussions and […] The post Top Internet Radio Shows and Podcasts in Surrey, BC—And Where They Store Their Gear appeared first on One-Forever Radio.
- Tune In to Fun: Planning the Perfect DJ Birthday PartyIntroduction Picture this: a dance floor bathed in pulsating lights, the beat of your favorite tunes reverberating through the room, and a crowd of friends […] The post Tune In to Fun: Planning the Perfect DJ Birthday Party appeared first on One-Forever Radio.
- The difference between digital radio and internet radioDigital radio is not the same as Internet radio. Online radio uses a data stream received through Internet access via a computer, personal devices, or Internet-enabled radio. The post The difference between digital radio and internet radio appeared first on One-Forever Radio.
- What’s the Difference Between a Podcast and an Internet Radio Show?Two of my most frequently asked questions are: "What are podcasts?" and "What's the difference between a podcast and an internet radio show? The post What’s the Difference Between a Podcast and an Internet Radio Show? appeared first on One-Forever Radio.
- How to listen to podcastsPodcasts are available on devices that are connected to the Internet and can play audio. These are smartphones and tablets, laptops and desktop computers. The post How to listen to podcasts appeared first on One-Forever Radio.
Run my testbed experiment
- Exploring the 5G RANIn this experiment, you will explore the 5G RAN by bringing up an end-to-end 5G network on a single server. You will see: how a 5G RAN can be split with the CU (centralized unit) handling SDAP, PDCP, and RRC layers, and the DU (distributed unit) handling RLC, MAC, PHY
- Exploring the 5G core networkIn this experiment, you will explore the 5G core network by bringing up an end-to-end 5G network on a single server. You will see: how 5G core network functions can be deployed in containers the HTTP2/TCP interfaces between network functions the NGAP/SCTP interface between the 5G gNodeB and
- Network layer securityThe exercises in this experiment will focus on security services offered at the network layer of the TCP/IP protocol stack. You will configure a network with a VPN tunnel, and then you will examine the extent to which you are protected from unauthorized eavesdroppers on network traffic, when you
Blog – Hackaday
- 2024 Hackaday Supercon Talk: Killing Mosquitoes with Freaking Drones, and SonarSuppose that you want to get rid of a whole lot of mosquitoes with a quadcopter drone by chopping them up in the rotor blades. If you had really good …read more
- ReactOS 0.4.15 Released With Major ImprovementsRecently the ReactOS project released the much anticipated 0.4.15 update, making it the first major release since 2020. Despite what might seem like a minor version bump from the previous …read more
- Metal Detector Built With Smartphone InterfaceIf you think of a metal detector, you’re probably thinking of a fairly simple device with a big coil and a piercing whine coming from a tinny speaker. [mircemk] has …read more
ZephrSec – Adventures In Information Security
- Navigating AI 🤝 Fighting SkynetUsing AI can be a great tool for adversarial engineering. This was just a bit of fun to see if it was possible todo and to learn more about automation but also proving you cannot trust git commit history nor can you trust dates of commits!
- (Re)Building the Ultimate Homelab NUC Cluster - Part 3Set up a Docker-based homelab with automation, monitoring & media tools like Plex, Sonarr & Portainer for easy management & scalability.
- 2024 - The Year of Learning More and More2024 marks 13 years in security, 10 in offensive security, and 11 of blogging. This year has been about growth, learning, and sharing knowledge. From leadership insights to career reflections, this "year in review" celebrates technical contributions, personal achievements, and key milestones.
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- Running Blink Example on Raspberry Pi PicoToday, I managed to find some time to try out a Raspberry Pi Pico module that had been awaiting my attention at the lab for some months. More details about this module can be found in their website's documentation. The following are the steps that I followed to get their default LED blink example running […]
- Fundamentals of Radio Tomographic Imaging - Part 1Nodes vs Links Consider a wireless network consisting of \(K\) number of devices. If each and every device is communicating with each other, there will be a wireless link between each and every pair of nodes. The number of such unique two-way links is depicted as \(M\). The following equation describes relationship between \(M\) and […]
- Observing I2C Communication using Logic AnalyserFigure: Connectivity between a master (controller) and slaves (target). (source: https://en.wikipedia.org/wiki/I²C)Inter-integrated circuit (I2C) protocol is an advanced protocol, that eliminates many weaknesses in the UART and SPI protocols to provide communication between ICs using minimum number of wires. I2C consists of just two wires interconnecting one or many master devices with one or many slave […]
AMSAT-UK
- Fram2Ham SSTV Simulation from ISSAstronaut and radio amateur, Rabea Rogge LB9NJ / KD3AID, will be transmitting amateur radio Slow Scan TV images from space during the SpaceX Fram2 mission, planned for March. It will be the first polar-orbit human spaceflight mission to explore Earth. … Continue reading →
- Space Station Slow Scan TV TransmissionsJust in time for the holidays and New Year, ARISS is planning an Slow Scan Television (SSTV) event from December 25 to January 5. Series 23 will consist in 12 pictures celebrating ARISS memories of 2024. Starting time of transmsissions … Continue reading →
- Space Station Slow Scan TV TransmissionsARISS is planning a Slow Scan Television (SSTV) experiment from the International Space Station (ISS) on 145.800 MHz FM. It is scheduled to start on Monday, November 11, at 11:50 GMT and end Monday, November 18, at 14:10 GMT. There … Continue reading →
Gough's Tech Zone
- Optical Discs From Japan – Part 6: TDK UV Guard, Fuji, LG/Sony, Maxell, CMCAs it turns out, “thrift shopping” in Japan via the internet can be both very enjoyable as well as very dangerous. In this series of posts, I’ve been examining various optical media I’ve obtained from Japan, both in-person and online, … Continue reading →
- Notes: What is the Power Consumption of a CPAP Machine?While commenting on a few power station deals, I saw this question come up time and time again – just how much power does a CPAP machine consume? It’s probably not a technically well worded question, but I can understand … Continue reading →
- Notes: Testing CD-R Overburning Capacity – Which Drives to Use?Recently, a reader had donated some rare media to me for the purposes of examination and testing. Because of this, I had a reason to revisit some older topics, such as overburning which I covered once before, but in a … Continue reading →
Compass Security Blog
- Bypassing Web Filters Part 4: Host Header Spoofing & Domain Fronting Detection BypassesIn the previous posts of this series, we looked at different ways to bypass web filters, such as Host header spoofing and domain fronting. As we’ve learned, these techniques can be detected by proxies employing TLS inspection, by checking whether the hostname in the SNI matches the one in the HTTP Host header. If they […]
- Bypassing Web Filters Part 3: Domain FrontingThe last two blog posts in this series were about SNI spoofing and Host header spoofing. We also learned that the latter is addressed by some vendors with a technique called "Domain Fronting Detection". But what exactly is domain fronting? This will be explained in this blog post.
- Bypassing Web Filters Part 2: Host Header SpoofingIn the last post about bypassing web filters, I discussed how SNI spoofing works and how this can also be prevented by web filters. This post is about another bypass technique called Host Header spoofing.
Nick Whyte
- Ender 3 v2 Pen PlotterLast year I purchased myself an Ender 3 V2 3D Printer. It was a logical purchase, to compliment my home automation hobby, allowing me to design and print custom enclosures for miscellaneous ESPHome and Zigbee nodes. It turns out having a CoreXY 3D printer allows you to do more than just 3D printing if you’re […]
- 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.
Baltic Lab
- WebP-Images without PluginWebP is a modern image format which shines through its fairly small filesize. Google recommends through their PageSpeed Insights that all PNG- and JPEG-files should be served as WebP images instead. There are of course plugins to facilitate the automatic generation of WebP versions of existing images but a few lines of PHP code and […]
- Firewall Rules with (dynamic) DNS HostnameUpdating and installing new firewall rules on remote servers always comes with the risk of locking yourself out completely. Many server administrators have inadvertently lost access to their servers, including SSH access, at some point due to a moment of inattention. This article shows how to install a backdoor on your own server that can […]
- Restoring proxied visitor IPs from CloudflareProxy servers are a great tool. Be it for security, filtering, load balancing through multiple origin servers or origin shielding. Unfortunately, reverse proxy requests make it a bit more difficult to recover the original visitor IPs. This article shows how to securely restore visitor IPs through the use of the Apache module mod_remoteip.