USBView is a small GTK application to show what the device tree of
the USB bus looks like. It shows a graphical representation of the
devices that are currently plugged in, showing the topology of the
USB bus. It also displays information on each individual device on
the bus.

The goal of this article is to illustrate the potential for cool applications when software is combined with custom hardware. I will provide a brief introduction to USB and how communication with a custom device can be used to create an annoying gadget.

This is about "what I know thing", and I can be wrong about what I'll show you specially in this article. If you find out that I'm wrong please let me know so we can discuss it further.

This is my second article, and it about how to monitor URB (USB Request Block) which is used by USB device driver. Honestly, I do not know exactly how USB protocol work, well, in fact I got this idea when I try to understand how to write USB driver. If you want to know exactly how this protocol work, please take a look at official USB "specification maintainer". The basic idea is the same as my previous article but this time with little bit variation.

Australia's Largest range of Electronic Kits and Components for the Radio Experimenter

SMD, SMT, BGA, QFN & PCB Soldering & De-Soldering Rework & Repair Preheating, Dispensing Solutions
Premium Forced Convection Hot Air Reflow Soldering & Preheating Equipment & Supplies & Fume Extraction. The World's Very 1st & Only Modular Benchtop Solutions. You Can Build Up As Your PCB Needs Grow. Ideal for Labs!

Industrial LED Digital Timers, Clocks, Stopwatches, & more

ANTENNA MAKING SUPPLIES/ DOG BONE INSULATORS AND STAINLESS ANTENNA WIRE CLIPS. End-fed half wave antennas EHHW

This talk presents the hidden risks of managing identities and access in a multi-cloud environment. We will expose access flaws and misconfigurations that attackers can easily abuse to gain access to confidential and sensitive information. We will discuss the inner workings of each cloud provider's Identity and Access Management (IAM) layers and highlight the differences between each cloud service. We then detail how inconsistent entitlements across cloud resources and services can lead to unintended access and how accountability confusion in the shared responsibility model can enable privilege escalation.

Archives of Ham Radio Magazine

A variety of new and used vintage and hard to find radio components for home brew projects including:

Bruce Daisley was previously Twitter's most senior employee outside of the United States, in his role of Vice President across Europe, Middle East and Africa. He joined the company in 2012 having previously run YouTube UK at Google. He has also worked in the magazine publishing and radio industries having got his first break by mailing a cartoon resume of his life to prospective employers. Bruce's passion for improving work led to him creating the podcast Eat Sleep Work Repeat on making work better. It became a number 1 smash in the UK (also hitting the business top 10 in the US).

The Joy of Work: 30 Ways to Fix Your Work Culture and Fall in Love with Your Job Again was the UK’s bestselling business hardback of 2019 and is now available as a paperback. The book has been translated into 13 languages and longlisted for Business Book of the Year 2020 and CMI Management book of the year 2020.

List of Broadcast, Fixed Broadcast, Studio-Transmitter Links (Feeders), Remote Pickup & Relay stations 25 - 87.5 MHz.

Figure R3 of 47 CFR 73.190 of the Commission’s Rules contains a map of the estimated effective ground conductivity in the United States. This data is used to predict the propagation of AM signals across the United States. A higher ground conductivity indicates better AM propagation characteristics. The map shows that the ground conductivity in the U.S. ranges between 0.5 and 30 millimhos (or millisiemens) per meter. The conductivity of seawater is 5,000 millimhos per meter, resulting in the best propagation of AM signals.

Figure R3 of 47 CFR 73.190 of the Commission’s Rules contains a map of the estimated effective ground conductivity in the United States. This data is used to predict the propagation of AM signals across the United States. A higher ground conductivity indicates better AM propagation characteristics. The map shows that the ground conductivity in the U.S. ranges between 0.5 and 30 millimhos (or millisiemens) per meter. The conductivity of seawater is 5,000 millimhos per meter, resulting in the best propagation of AM signals.

I make no claims for technical accuracy, good design, or necessarily even originality for the contents of these pages. Rather, I am a simple enthusiast attempting to convey my love and enjoyment of radio, electronics, and computing and perhaps to inspire YOU to build something too. The following pages document projects that I have built over a period of 30 years. Wherever applicable I have named sources and references.