Did you ever wonder what frequencies cell phones use? I always though it was about 900 MHz but look at the table below to see a wide range of bands that are used. The matrix below meshes provider against technology. We can see that 5G distinguishes itself from the others in that it uses 28…
Blog
SHARES, DHS and Winlink – Thanks Steve Waterman!
Many thanks to Steve Waterman (K4CJX) for his presentation on SHARES and DHS Emcomm planning. His presentation is available here. For more information contact Steve at k4cjx@comcast.net.
CQ: Calling any station
As the club web presence begins to evolve and grow, there’s a genuine opportunity for all club members to have a bigger impact. The driving force behind changing the format of our web site was to create a platform for members to communicate and share their experience. Your posts need not be long, nor technical….
Contingencies in Amateur Radio – Power Blackout
Here’s the scenario… you’re the net control operator for your club’s weekly net and just as you finish the preamble and are ready to pause for check-ins, the power at your home QTH goes out. You have no idea if it will be out for a minute or an hour or a day. If there’s…
LTspice–Computer Simulation of Analog Electronics Designs
EDITOR’S NOTE: I am introducing you to LTspice now because I plan to bring blog posts in the future in which you will be able to leverage LTspice to your advantage. Please download it and find various YouTube tutorials on its use. LTspice is free. Many amateurs are electronic enthusiasts and routinely design and build…
1000 FT8 Contacts in 14 days
As a new ham, there are many projects and areas of this hobby that I want to jump into all at once, and the idea of exchanging world wide digital text messages via the FT8 mode was one of the first. Make no mistake, though the amateur radio community might downplay the significance of ‘just…
Scanned Data — Part 2
In the first part (What is a “Scanned Data” Utility, Anyhow) we learned about the concept of quickly and conveniently transcribing plot data into a tabular form with precision. In this second part we will examine the use of a recommended scanned data utility—Plot Digitizer by Joseph Huwaldt. The first step in our examination of…
What is a “Scanned Data” Utility, Anyhow?
In the process of characterizing a physical device or process, the original performance specifications are published in a plot format such as illustrated in Figure 1. But suppose you need to have the data in a tabular format such as that of Table 1. How do you go about doing the conversion? The most obvious…
Professionalism in EmComm, Preparing for Auxcomm
On Saturday evening, January 9th 2021 I will be holding an interactive seminar from 8:00-9:00pm. This course is titled “Professionalism in EmComm, Preparing for Auxcomm”. This is a course I developed as a video, but I am going to introduce it as an interactive format to keep folks engaged. This is geared towards amateur radio…
W8JXN this is AD8GN!
Welcome to the new W8JXN website! Firstly, please allow me introduce myself. My call is AD8GN and I am a new ham, first licensed as a Technician on 11/18/2020. In the next five weeks til Christmas 2020, I immersed myself in all things radio; joining local clubs, joining far away clubs, expanding my new collection…