Amateur Radio Weekly Newsletter – Week of October 9, 2021

Amateur Radio Weekly Newsletter

Ham radio news, commentary, giveaways, and more!
Celebrating 25 years of service – 1995-2021
Over 8,000 subscribers!
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Saturday, October 9, 2021

  • Ham College 81
    Ham College episode 81 is now available for download. Extra Class Exam Questions – Part 19. E4E Noise suppression and interference: Noise suppression and interference: system noise, electrical appliance noise, line noise, locating noise sources,…
  • Get Your General License, Colorado
    The Technician Class License is the entry-level ham radio license in the USA. The next step up is the General Class License which provides operating privileges on the high-frequency bands. If you want to work the world with ham radio, you should seriously consider going for the General license. The Tri-Lakes Monument Radio Association is […]

    The post Get Your General License, Colorado appeared first on The KØNR Radio Site.

  • LHS Episode #433: Mind the Spark Gap
    Hello and welcome to the 433rd installment of Linux in the Ham Shack. In this short-topics episode, the hosts discuss several topics including RaDAR, communicating across the Atlantic in the …
  • Remember what it was like without it all?
    Remember what it was once like without Facebook, and Instagram, and we had dial up Internet..The dark nights are certainly back and Facebook has failed! Time to return back to Blogging, watch this space! 🙂
  • VOAPROP configuring 2021
    Sunspots are getting higher! Band conditions are improving once again, it’s time to get active! It is nice to be able crunch all the data and get a daily understandable, updated plot, and find out what bands may be workable, where and …
  • My Summer QSL Mailbox
    Most of my blog readers know how much I love QSLs … real paper ones that is. In fact the lure of collecting cards was one of the main things that hooked me on radio as a pre-teen SWL!All of the important QSLs from last winter’s 160m DX season…
  • What Is a Valid QSO?
    Ham operators make radio contacts on a routine basis. We call another station or another station responds to our call, we exchange some information, maybe chat for a while and then finish the contact, clearing out with our callsigns. Most of the time we clearly know whether we had a valid radio contact, commonly referred […]

    The post What Is a Valid QSO? appeared first on The KØNR Radio Site.

  • GHz and GigaDollars
    ARRL reported on continuing efforts to “counter the continuing threat to Amateur Radio’s secondary use of the 3 GHz band” in response to a “provision in the $3.5 Billion Budget Reconciliation Bill that would have required approximately 200 MHz of the 3.1-3.45 GHz band be reallocated to the use of 5G vendors.” Meanwhile, FCC Auction … Continue reading GHz and GigaDollars

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Matt W1MST
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Vacuum Tubes, Inexpensive Magnetometer, How Do You Measure Competency?, Book Review: Troubleshooting Electronic Circuits

Newsletter #243

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Vacuum Tubes

VACUUM TUBES
At the ripe old age of 100+ years old, is the venerable vacuum tube still relevant in modern designs?

For audiophiles, musicians, and ham radio operators, the soft glow of the vacuum tube filament is not only an indication of function, but a nostalgic trigger for memories of simpler times. Though they may have been outpaced by tiny transistors and integrated circuits, these workhorses still may have something to offer in many modern devices.

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High Tech Book
Build an Inexpensive Magnetometer

BUILD AN INEXPENSIVE MAGNETOMETER

Build a Hall-effect based magnetometer.

This article describes a Hall-effect based magnetometer that uses an inexpensive analog Hall-effect sensor, an Arduino, and LCD. The linearity of the magnetometer is surprisingly good when compared against a commercial magnetometer. This unit can be operated manually or make measurements under computer control, so we’ll use our magnetometer in a computer-controlled setup to measure the BH-curve of small sample of magnetic material.

Build It Now!
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How Do You Measure Competency?

HOW DO YOU MEASURE COMPETENCY?
Do you consider yourself a competent electronics enthusiast?

Competency — a measure of someone’s skills, knowledge, and attitudes in a domain — is a term usually associated with work and human resource departments. However, the concept of competency also has merit in the avocation of electronics. But what constitutes competency, and why should you aspire to greater competency?

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DYI Animatronics Starter Kit
Book Review: Troubleshooting Electronic Circuits

BOOK REVIEW: TROUBLESHOOTING ELECTRONIC CIRCUITS
This book is great for novices as well as seasoned experimenters.

The instant I saw Ronald Quan chose to prominently display Cen-Tech volt-ohm-milliammeters on the front cover of Troubleshooting Electronic Circuits, I had a feeling I was going to like the book.

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Random Number Kit
Learning Lab
Nuts & Volts On CD-ROM
3D LED Cube Kit
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Amateur Radio Weekly Newsletter – Week of October 2, 2021

Amateur Radio Weekly Newsletter

Ham radio news, commentary, giveaways, and more!
Celebrating 25 years of service – 1995-2021
Over 8,000 subscribers!
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Saturday, October 2, 2021

  • ICQ Podcast Episode 360 – New Open GD77 Firmware review
    In this episode, Martin Butler (M1MRB) is joined by Chris Howard (M0TCH), Martin Rothwell (M0SGL), Leslie Butterfield (G0CIB), Frank Howell (K4FMH), and Bill Barnes (WC3B) to discuss the latest Amateur / Ham Radio news. Colin (M6BOY) rounds up the news…
  • LHS Episode #431: SDR++ Deep Dive
    Hello and welcome to Episode 431 of Linux in the Ham Shack. In this episode, the hosts take an in-depth look at the SDR++ client program for SDR receivers and …
  • My ham radio adventure continues.
    Around this time last year, I registered for the CWops intermediate CW course. The CWops is a worldwide group of radio ops that support the operation of CW. On top of this, they want to help up-and-coming CW ops as well as those (like me) w…
  • Seems the IARU has been busy……
    Below is a cut and paste from the QRZNOW.COM site which by the way is a great site for news and reviews in the ham radio world. Over the past 18 months, a proposal for an IARU HF Digital Mode reorganization has been undertaken by representatives o…
  • The Lost Tribe, the Pied Piper and The Executive.
    Think that the ARRL was the first amateur radio association in the United States? Or that the famous and brilliant inventor also “invented” amateur radio? If so, you are not alone. But pesky historical documents and the facts they contain tell a deeper and more accurate story. It’s in the October issue of The Spectrum […]
  • For your listening fun.
    Web SDRs are nothing new to shortwave listeners or amateur radios op’s alike. Internet SDR’s provide a portal for many to access a wide variety of listening pleasures. No longer does one need a shortwave receiver to access the air waves. I …
  • LHS Episode #432: The Weekender LXXIX
    It’s time once again for The Weekender. This is our bi-weekly departure into the world of amateur radio contests, open source conventions, special events, listener challenges, hedonism and just plain …

Thank you for being an AmateurRadio.com reader and subscriber to the Amateur Radio Newsletter.

Do you like to write? Please consider submitting an article.

Matt W1MST
Managing Editor
editor

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AmateurRadio.com
P.O. Box 45
Hampden ME 04444
USA

Designer’s Guide to Oscillators and Timers Part 3, Ham Radio For Dummies, Calculators as Coprocessors, What Do You Want On Your Tombstone?

Newsletter #242

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Nuts & Volts - Everythinmg For Electronics
Dr Duino
Nuts & Volts Designer’s Guide to Reliable Oscillators and Timers — Part 3

NUTS & VOLTS DESIGNER’S GUIDE TO RELIABLE OSCILLATORS AND TIMERS — PART 3
Crystals that Make the World Go ‘Round.

Strike a crystal goblet with a spoon, and you immediately have both the attention of your guests and the sympathetic resonance of other goblets on your sumptuous holiday table. What is happening here? Well, you have created a crystal oscillator that generates acoustic waves in the air.

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DIY RC Controller Kit with Receiver Recorder
Book Review: Ham Radio for Dummies

HAM RADIO FOR DUMMIES

I can’t say enough good things about this book.

The layout of the book, the sequencing of the material, and the down-to-earth vocabulary show not only that the author understands the material, but that he’s a great teacher.

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Calculators as Coprocessors

CALCULATORS AS COPROCESSORS
Turn a TI calculator into a computing machine.

Connect Texas Instruments calculators to Arduinos to extend this open source prototyping platform’s computing power for math functions and to make graphic capabilities easier to implement.

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What Do You Want On Your Tombstone?

WHAT DO YOU WANT ON YOUR TOMBSTONE?
Save time and money making decorations with CNC.

Create complex 3D contoured parts by combining fast and simple 2.5D pocketing and profiling operations with manual finishing techniques to create a custom tombstone for this Halloween.

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DYI Animatronics Starter Kit
Random Number Kit
Learning Lab
Nuts & Volts On CD-ROM
3D LED Cube Kit
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Amateur Radio Weekly Newsletter – Week of September 25, 2021

Amateur Radio Weekly Newsletter

Ham radio news, commentary, giveaways, and more!
Celebrating 25 years of service – 1995-2021
Over 8,000 subscribers!
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Saturday, September 25, 2021

  • LHS Episode #430: Bag of Hammers
    Welcome to the 430th episode of Linux in the Ham Shack. In this action-packed episode, the hosts discuss topics including the JARL Hamfest, AMSAT events going virtual, JOTA and JOTI, …
  • Hunting For NDBs In CLE272
    ML – 392 Charlevoix, QuebecIt’s CLE time! ‘CLE’s are ‘Co-ordinated Listening Events, and NDB DXers around the world focus their listening time on one small slice of the NDB spectrum. It’s another normal one again with a …

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Designer’s Guide to Oscillators and Timers Part 2, Analog Mathematics, NixieStar Clock, Peek-a-Boo Ghost

Newsletter #241

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Dr Duino
Nuts & Volts Designer’s Guide to Reliable Oscillators and Timers — Part 2

NUTS & VOLTS DESIGNER’S GUIDE TO RELIABLE OSCILLATORS AND TIMERS — PART 2
Understanding and Designing with the Ever-Useful CMOS Timer.

Not as commonplace as the operational amplifier, the integrated circuit CMOS timer — such as the ICM7555 and TLC555 — has nonetheless found a secure niche in electronics. Why is this?

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DIY RC Controller Kit with Receiver Recorder
Analog Mathematics

ANALOG MATHEMATICS

Even in the middle of all things digital, there’s still a place for analog mathematics to streamline your designs.

It seems that the utility of analog mathematical circuits has been shunted aside. However, there are still useful and important applications for analog mathematics in today’s digital world. In fact, the marriage between analog computing and microprocessors (µCs) can be remarkably efficient.

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Build the NixieStar Clock

BUILD THE NIXIESTAR CLOCK
Construct this elegant and intricate timepiece.

The NixieStar clock is the second timepiece kit I’ve developed. My aim was to have a kit that’s reasonably easy to build with intermediate soldering skills (i.e., minimal SMD components). I also wanted a clock kit that once it was built, any spouse (including my wife!) would accept it on their wall — even with a power cord hanging from it.

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Build the Peek-A-Boo Ghost

BUILD THE PEEK-A-BOO GHOST
Not all decorations have to be scary.

Have some fun with this quick build that can be adjusted for other holidays as well!

Build It Now!
Random Number Kit
Learning Lab
Nuts & Volts On CD-ROM
3D LED Cube Kit
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Amateur Radio Weekly Newsletter – Week of September 18, 2021

Amateur Radio Weekly Newsletter

Ham radio news, commentary, giveaways, and more!
Celebrating 25 years of service – 1995-2021
Over 8,000 subscribers!
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Saturday, September 18, 2021

  • ICQ Podcast Episode 359 – Teaching Ham Radio Classes
    In this episode, Martin Butler (M1MRB) is joined by Leslie Butterfield G0CIB, Dan Romanchik KB6NU, Edmund Spicer M0MNG, and Ed Durrant DD5LP to discuss the latest Amateur / Ham Radio news. Colin (M6BOY) rounds up the news in brief and in the episode we…
  • LHS Episode #428: Pat and Winlink Deep Dive
    Welcome to the 428th installment of Linux in the Ham Shack. In this episode, the hosts take a deep dive into the Winlink radio-based e-mail system. Discussed are native applications …
  • LHS Episode #429: The Weekender LXXVIII
    It’s time once again for The Weekender. This is our bi-weekly departure into the world of amateur radio contests, open source conventions, special events, listener challenges, hedonism and just plain …

Thank you for being an AmateurRadio.com reader and subscriber to the Amateur Radio Newsletter.

Do you like to write? Please consider submitting an article.

Matt W1MST
Managing Editor
editor

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AmateurRadio.com
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USA

Designer’s Guide to Oscillators and Timers, Neon-Nixie Clock, Bait and Switch, Build the RetroGame

Newsletter #240

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ExpressPCB
Nuts & Volts Designer’s Guide to Reliable Oscillators and Timers — Part 1

NUTS & VOLTS DESIGNER’S GUIDE TO RELIABLE OSCILLATORS AND TIMERS — PART 1
Common Problems in the Design of Digital Oscillators and Their Remedy.

Electronic designers are familiar with the apparent perversity of Nature in the tendency of amplifiers to oscillate and oscillators to amplify. But even the beginning designer knows that questions of oscillation and stability involve feedback — that ubiquitous structure in natural systems and many man-made ones — whereby a fraction of the system’s output energy is fed back to the input to produce useful effects.

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Get an Arduino Based Online Course FREE With This Kit!

Dr Duino
Arduino users worldwide agree that Dr.Duino kits are the easiest way to learn and design Arduino projects. Kits include sensors and displays and have been featured in magazines like Design News and Nuts & Volts, Make Magazine and more. For a limited time get Dr.Duino’s Arduino boot camp with purchase!

Click Here To Learn More!

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Nixie-Neon Clock

NIXIIE-NEON CLOCK

Time for another cool clock design using Nixie tubes.

The NixieNeon clock is a product of my love for clocks and electronics. I believe that its intriguing design can provide hours of enjoyment and satisfaction both in its construction, as well as watching it work once it’s complete.

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Pico Techology Tools in Education

Pico Technology
The core instrument that students use to test and document their assigned experiments in almost all teaching labs is the oscilloscope. With PicoScope each student can have PicoScope 6 software running, free of charge, on their own PC to practice and learn at their own pace.

Click here for more details!

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Bait and Switch for Halloween Fun

BAIT AND SWITCH FOR HALLOWEEN FUN
Delight and fright with these fun build ideas for the upcoming holiday season.

I’ve come to philosophically believe that our friends and neighbors secretly want and need to have a good fright around Halloween. In fact, I tremble to think of the psychological damage that could be done if we shirked our responsibility as haunters once a year! (Well, that’s my story and I’m sticking to it.) Along with a couple fun build ideas, this article covers some really entertaining animatronic principles and characters that make wonderful projects any time of year — even without the scare.

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Build the RetroGame

BUILD THE RETROGAME
Build it, play it, and re-master your skills at Retro Rover and Tetris.

So, my wife volunteered me for “Science Day” at my son’s elementary school — an annual half day program where moms and dads taught mini-courses on everything from rocketry to zoology to chemistry. But what could I teach the kids? No sooner did the thought cross my mind, did I get the answer: Build a video game!

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DIY RC Controller Kit with Receiver Recorder
Random Number Kit
Learning Lab
Nuts & Volts On CD-ROM
Animatronics Kit
Do You Love Robots? - Subscribe To SERVO
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T & L Publications, Inc, 2279 Eagle Glen Pkwy #112-481, Corona, CA 92883, 951 371-8497

Amateur Radio Weekly Newsletter – Week of September 11, 2021

Amateur Radio Weekly Newsletter

Ham radio news, commentary, giveaways, and more!
Celebrating 25 years of service – 1995-2021
Over 8,000 subscribers!
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Saturday, September 11, 2021

  • Part time radio weekend.
    In Canada and the U.S. this is a long weekend (Labour Day Weekend) with Monday being a holiday. I was able to spend a little time on the radio in the late afternoon a few days of the long weekend. I was able to spend a few hours on both Saturday …
  • LHS Episode #427: The Death of CW
    Hello and welcome to the 427th installment of Linux in the Ham Shack. In this short topics episode, the hosts discuss the attrition present in CW contesting, grants for youths …
  • Solar Cycle 25 – Where Are We Headed?
    This coming week might be a significant one for the progress of Solar Cycle 25. Going forward, the next two months should give us a good indication of just exactly where our latest cycle is heading.Cycle 25 is now in its 21st month, having sta…
  • Sweden from the River with QCX-Mini
    Judy and I rode our bikes again today in Old Hill Village. We rode north from Needle Shop Brook and stopped at an outcropping right on the edge of the Pemigewasset River. I worked a station in Sweden. It was a cool day, 17C and there was a stiff breeze from the north. When we […]

Thank you for being an AmateurRadio.com reader and subscriber to the Amateur Radio Newsletter.

Do you like to write? Please consider submitting an article.

Matt W1MST
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editor

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How to set up your own ham radio blogGet started in less than 15 minutes

AmateurRadio.com
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Replacing the 555 with a PIC, eTracer Tube Tester Kit, Crypt Creature, ASCII Data from PS-2 Keyboards

Newsletter #239

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DrDuino
Replacing The 555 With A PIC — Part 5 — A Digital Analog

REPLACING THE 555 WITH A PIC — PART 5 — A DIGITAL ANALOG
This is the final installment that looks at the remaining circuits from the book, 555 Timer IC Circuits by Forrest Mims.

This final article in our series will examine those circuits from the “555 Timer IC Circuits” by Forrest Mims which were not covered in any of the preceding four articles.

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Updated DIY RC Controller Kit with Receiver Recorder
eTracer Digital Tube Tester and Curve Tracer Kit

ETRACER DIGITAL TUBE TESTER AND CURVE TRACER KIT

We take on a digital tube tester and curve tracer kit.

This modern take on the tube tester is a must-have for anyone who regularly works with tube-type electronics.

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DYI Animatronics Kit
The Crypt Creature

THE CRYPT CREATURE
This entombed skeleton prop is startling good fun.

The Crypt Creature is an animated six foot tall replica of a stone block burial crypt with black bars in front. When activated, the creature lets out a loud growl, lunges forward, and forces the bars open. It then bellows "Happy Halloween!" in a deep sinister voice. Perfect to delight kids of all ages!

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Get ASCII Data from PS-2 Keyboards

GET ASCII DATA FROM PS-2 KEYBOARDS
Convert PS-2 key codes to corresponding ASCII values.

You can buy inexpensive PS-2 keyboards, but they don’t produce ASCII values many applications need. To further complicate things, these keyboards have their own code-transmission protocol. See how to use a system-on-a-chip and a bit of software to convert PS-2 key codes to corresponding ASCII values.

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Random Number Kit
Learning Lab
Nuts & Volts On CD-ROM
RetroGame Kit
Do You Love Robots? - Subscribe To SERVO
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T & L Publications, Inc, 2279 Eagle Glen Pkwy #112-481, Corona, CA 92883, 951 371-8497