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

RSS One-Forever Radio

  • The Rise of Radio: How One Invention Changed Everyday Life
    Radio did not appear overnight. Many people worked for years on signals, transmitters, and receivers. By 1920, radio was ready for public use. In Pittsburgh, […] The post The Rise of Radio: How One Invention Changed Everyday Life appeared first on One-Forever Radio.
  • Who Really Invented the Radio?
    If you enjoy listening to music, podcasts, or even using your phone, you are already using radio waves. These waves are all around you—even when […] The post Who Really Invented the Radio? appeared first on One-Forever Radio.
  • Top Internet Radio Shows and Podcasts in Surrey, BC—And Where They Store Their Gear
    Podcasting 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 Party
    Introduction 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 radio
    Digital 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.

RSS Blog – Hackaday

RSS ZephrSec – Adventures In Information Security

RSS fetch( ); decode( ); execute( );

  • Running Blink Example on Raspberry Pi Pico
    Today, 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 1
    Nodes 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 Analyser
    Figure: 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 […]

RSS AMSAT-UK

  • ISS Contact with Dublin Students
    Students at Technological University of Dublin will talk via ham radio with astronaut Takaya Onishi KF5LKS on the International Space Station. The contact is scheduled for Wednesday, June 4, at 12:10 UTC (1:10 PM BST) via EI1ISS. The contact on … Continue reading →
  • Video: A guide to using satellites in amateur radio
    The online talk ‘Guide to using satellites in amateur radio’ given by Tim GW4VXE, on May 21, 2025, is now available to watch in the Pennine Ham channel on YouTube
  • ISS Slow Scan TV May 5-12
    Slow Scan TV (SSTV) transmissions from the International Space Station are planned to take place from 1200 GMT on Monday, May 5, until 1800 GMT on Monday, May 12. The ARISS Series 27 images will commemorate the 80th anniversary of … Continue reading →

RSS Gough's Tech Zone

RSS Compass Security Blog

  • LinkedIn for OSINT: tips and tricks
    When it comes to open source intelligence (OSINT), LinkedIn is a treasure trove of information. With millions of professionals voluntarily sharing details about their careers, connections, personal achievements, or keeping up to date with what is happening in their professional sphere, the famous networking platform is not to be underestimated when it comes to OSINT. […]
  • Renovate – Keeping Your Updates Secure?
    Renovate is an OSS CLI/bot that updates your software dependencies automatically. It is usually integrated into the CI/CD process and runs on a schedule. It will create a Pull Request / Merge Request (PR/MR) to your repository with dependency updates. It can optionally auto-merge them. If you host it for several repositories or an organization, it […]
  • Bypassing BitLocker Encryption: Bitpixie PoC and WinPE Edition
    Depending on the customer’s preference, possible initial access vectors in our red teaming exercises typically include deployment of dropboxes, (device code) phishing or a stolen portable device. The latter is usually a Windows laptop protected by BitLocker for full disk encryption without pre-boot authentication i.e. without a configured PIN or an additional key file. While […]

RSS Nick Whyte

  • Ender 3 v2 Pen Plotter
    Last 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 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 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.

RSS Baltic Lab

  • WebP-Images without Plugin
    WebP 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 Hostname
    Updating 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 Cloudflare
    Proxy 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.