Amateur Radio Weekly Newsletter

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Celebrating 24 years of service – 1995-2019
Over 7,000 subscribers!
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Saturday, March 21, 2020

• AmateurLogic 141: The Great Toilet Paper Famine
  AmateurLogic.TV Episode 141 is now available for download. RSPDUO Tone and DCS Decoding, Exploring RigPi Deeper, Coronavirus Hoarding, and more. 1:17:39 Download YouTube

• ICQ Podcast Episode 320 – Kit Building Tips
  In this episode, Martin M1MRB is joined by Chris Howard M0TCH, Martin Rothwell M0SGL, Ed Durrant DD5LP and Frank Howell K4FMH to discuss the latest Amateur / Ham Radio news. Colin M6BOY rounds up the news in brief and this episode’s feature is – Kit Bu…

• Weekly Propagation Summary – 2020 Mar 16 16:10 UTC
  Here is this week’s space weather and geophysical report, issued 2020 Mar 16 0057 UTC. Highlights of Solar and Geomagnetic Activity 09 – 15 March 2020 Solar activity was very low. Region 2758 (S29, L=229, class/area Cro/020 on 08 Mar) was absent of significant flare activity and decayed to plage on 10 Mar. No Earth-directed […]

• LHS Episode #332: Global Pandemicast
  Hello and welcome to the 332nd episode of Linux in the Ham Shack. In these troubling times of global viruses, we can be healthy and maintain social distance by talking with you via the Intertubes. In this episode, we talk about COVID-19 (duh), learning Morse Code, homebrewing, open data sharing, legendary DXpeditions, more COVID-19, […]

  

• Comparing 2 Endfed antennas.
  At my location with the lot size, the best antenna for me is an Endfed. Now I am not at all complaining because just a short time ago I was in a condo using the MFJ 1788 loop antenna. My first Endfed antenna was the W1SFR 6m-40m. I will once again…

• LHS Episode #333: The Weekender XLIV
  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 fun. Thanks for listening and, if you happen to get a chance, feel free to call us or e-mail and send us some feedback. […]

  

• Social distancing…..things are getting interesting.
  One site I have booked marked and is a link on my blog is Southgate Amateur News. I was browsing it this evening and came across but yet another change COVID 19 has brought about. This time it’s contesting and to tell you the truth I was wondering when…

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Matt W1MST
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editor
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How to set up your own ham radio blog – Get started in less than 15 minutes

AmateurRadio.com
P.O. Box 45
Hampden ME 04444
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Newsletter #165

View in browser A SHOT IN THE ARM FOR ONLINE VR AND AR With the current viral scare, shopping from home makes more sense. The world’s focus on fomites — germs on surfaces — is a shot in the arm for online virtual reality and augmented reality applications ranging from online courseware, task trainers, and sales of apparel and accessories, to fresh fruit, vegetables, and meats. I’m sure that — more than ever before — I’m not alone in my willingness to try any reasonable VR or AR solution to grocery shopping. Read It Now! PicoScope 6000E Big Performance in a Small Package Delivering big performance for developing advanced embedded systems, power electronics, mechatronics, automotive applications and scientific research, our new PicoScope 6000E series oscilloscopes are our most powerful yet. With 8 + 16 digital channels (MSO), 8/10/12-bit FlexRes availability, 500 MHz bandwidth and much more. Perfect for the lab or working remote. Get the Details Now! Advertisement FOR IoT PROJECTS, CALL JSON Learn how to create and parse JSON messages. Internet-of-Things (IoT) projects that use sensors, actuators, displays, or controllers can easily communicate through an MQTT (Message Queuing Telemetry Transport) server, or broker. The MQTT standard lets devices publish and subscribe to specific topics. When they use the JavaScript Object Notation (JSON) format to exchange information, software can easily interpret or parse it. In this tutorial, I’ll explain how to create and parse JSON messages. Read It Now! A SEMICONDUCTOR-BASED HIGH VOLTAGE UTILITY POWER SUPPLY A utility supply like this has a small footprint on the bench and supports a wide range of experiments with tube circuits. For those who experiment and build with vacuum tubes, an adjustable regulated benchtop high voltage power supply is essential. Many circuits for such units have been described that themselves use tubes. It’s nice to be consistent, but we can save some bench space and a few watts by using semiconductors in such a unit. Build It Now! KING TUT’S PYRAMID GRAVIMETER Use this novel assembly to determine the gravity of most any situation. Gravity is that mysterious force that most of us fight when we step on the scales. (Actually, it’s not our weight we need to worry about, but our mass.) To determine the gravity of any situation, here’s a device that’s easy to construct because it has no surface-mount components. It uses an inexpensive LCD display that does graphics and alpha numeric characters which are all driven by 11 inputs. Build It Now! Altura MIDI Theremin DIY RC Controller RetroGame The Mentor’s Friend Nuts & Volts On CD-ROM 3D LED Matrix Cube TEENSY Graphics Interface Arduino Graphics Interface You are receiving this email because you have been a subscriber to Nuts & Volts Magazine, or have requested to receive our email newsletters. You may unsubscribe, change your email address or content preferences at any time through the links provided below. Nuts & Volts Magazine | 2279 Eagle Glen Pkwy #112-481, Corona, CA 92883 951.371.8497 | editor | www.nutsvolts.com T & L Publications, Inc, 2279 Eagle Glen Pkwy #112-481, Corona, CA 92883, United States, 951 371-8497 Unsubscribe Manage preferences

Amateur Radio Weekly Newsletter

Ham radio news, commentary, giveaways, and more!
Celebrating 24 years of service – 1995-2019
Over 7,000 subscribers!
Unsubscribe

Saturday, March 14, 2020

• Mobile DC Power: One Fuse or Two?
  [My apologies. I fumble-fingered WordPress and published a draft version of this article that was incomplete. This is the corrected version. ] Sometime during the 20th Century, I learned that fuses (or circuit breakers) are used in electrical circuits to prevent catastrophic failure. Fuses open in response to an electrical fault that causes excessive current … Continue reading Mobile DC Power: One Fuse or Two? →

  The post Mobile DC Power: One Fuse or Two? appeared first on The KØNR Radio Site.

  

• One Fuse or Two?
  Way back in the 20th Century, I learned that fuses (or circuit breakers) are installed into electrical circuits to prevent against catastrophic failure. Fuses open in response to some kind of electrical fault that causes excessive current to flow. The job of the fuse is to minimize the damage and keep things from catching on … Continue reading One Fuse or Two? →

  The post One Fuse or Two? appeared first on The KØNR Radio Site.

  

• Weekly Propagation Summary – 2020 Mar 09 16:10 UTC
  Here is this week’s space weather and geophysical report, issued 2020 Mar 09 0528 UTC. Highlights of Solar and Geomagnetic Activity 02 – 08 March 2020 Solar activity was very low. A new spot group emerged in the SE quadrant on 07 Mar and was numbered Region 2758 (S29, L=229, class/area Cro/020 on 08 Mar). […]

• LHS Episode #331: Roundtable Q&A
  Hello and welcome to Episode 331 of Linux in the Ham Shack. In this episode, we bring listeners on to talk with us and field questions from the chat. We discuss Hamvention and COVID-19, FT-8, antenna designs, amateur radio exams, new acquisitions and much, much more. Thank you to all who participated and thank […]

  

• Hamvention vs Coronavirus
  As I watch the news and as a side note, I am getting very worn on hearing every detail they can pick at regarding COVID-19 anyway……Hamvention is not that far off considering all the advance planning that has to be done. As you know this is one of t…

• Why did I overlook the simple?
  What is going on?Back in November 2017 I ordered and built the Funk Amateur FA-VA4 antenna analyzer kit. The kit was built and passed the smoke test without issue. I then went through the calibration process and it was successful (so I thought). I was …

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Matt W1MST
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editor
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How to set up your own ham radio blog – Get started in less than 15 minutes

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

Newsletter #164

View in browser 1920s RADIO APPLAUSE CARDS Back in the 1920s, the penny postcard quickly became the preferred medium by broadcast radio stations for listener reports. Early commercial radio stations valued listener reports, as they were the major means by which broadcasters could tell if and where their programming was being received. The reports helped station marketers develop demographics for the station in general, and for specific programming. Since telephone calls were a bit pricey at the time, the penny postcard — or applause cards as they became known — quickly became the preferred medium for listener reports. Read It Now! Ask an Engineer Learn why engineers use Rohde & Schwarz instruments in their labs. See Reviews Advertisement CAN YOU TRUST YOUR VOLTMETER? You can easily build or buy a perfectly good IC voltage reference and set your mind at ease about the accuracy of your meters. Sometimes I wonder which of my portable digital voltmeters I can trust — the B&K, Fluke, or Amprobe. Usually, they’re pretty close but it bugs me not knowing whether they are right on the nose. Fortunately, these days, there are a number of very accurate voltage reference circuits that you can build or purchase for a few dollars. Read It Now! Harness the Power of UltraScale Technology Digilent’s new Genesys ZU gives you the incredible power of an UltraScale+ MPSoC with enough peripheral connectors and ports that you will be able to prototype almost any vision, AI, machine learning, or communications project. Get Details Here Advertisement LEDs FOR OPERATIONAL STATUS AND TROUBLESHOOTING Get flashy with your troubleshooting methods. Even when a circuit functions as it’s supposed to, it’s not always easy to tell what it’s doing. Plus, waiting for an output (especially if there’s a long delay involved) is not always practical. Conversely, if a circuit does not function, the only means to find out what’s wrong is to troubleshoot it with either a multimeter or oscilloscope. Wouldn’t it be great if the circuit itself could tell us more directly what’s wrong? Read It Now! BUILD A SMALL POWERFUL DUMMY LOAD Use this device for testing that costs less than $5 to make. A dummy load is a resistor used to load any radio frequency generator / amplifier to simulate an antenna for testing purposes. It’s used to allow full power output while testing or experimenting without radiating a radio frequency signal. Here’s one you can build for less than $5. Build It Now! Altura MIDI Theremin DIY RC Controller RetroGame The Mentor’s Friend Nuts & Volts On CD-ROM 3D LED Matrix Cube TEENSY Graphics Interface Arduino Graphics Interface You are receiving this email because you have been a subscriber to Nuts & Volts Magazine, or have requested to receive our email newsletters. You may unsubscribe, change your email address or content preferences at any time through the links provided below. Nuts & Volts Magazine | 2279 Eagle Glen Pkwy #112-481, Corona, CA 92883 951.371.8497 | editor | www.nutsvolts.com T & L Publications, Inc, 2279 Eagle Glen Pkwy #112-481, Corona, CA 92883, United States, 951 371-8497

Amateur Radio Weekly Newsletter

Ham radio news, commentary, giveaways, and more!
Celebrating 24 years of service – 1995-2019
Over 7,000 subscribers!
Unsubscribe

Saturday, March 7, 2020

• LHS Episode #328: KiCad Deep Dive
  Hello and welcome to the 328th episode of Linux in the Ham Shack. In this Episode, the hosts interview Barry Buelow, W0IY, about his experience in engineering, circuit design, PCB design, schematics and the benefits of using the Open Sourcea tool KiCad for drawing, modeling and manufacturing hardware projects. Thanks for listening. We hope […]

  

• Ham College 62
  Ham College episode 62 is now available for download. Extra Class Exam Questions – Part 1 Operating Standards: frequency privileges; automatic message forwarding; stations aboard ships or aircraft; power restriction on 630 and 2200 meter bands. …

• Here Comes The Novice Rig Roundup (NRR) 2020!
  One of the most enjoyable operating events of the year is fast approaching — the Novice Rig Roundup or ‘NRR’. Technically, it is a contest, but I have the feeling that most participants think of it as just a lot of fun and a nice opportunity to he…

• ICQ Podcast Episode 319 – Launching the Illinois Young Ham Club
  In this episode, Martin M1MRB is joined by Leslie Butterfield G0CIB, Edmund Spicer M0MNG and Dan Romanchik KB6NU to discuss the latest Amateur / Ham Radio news. Colin M6BOY rounds up the news in brief and this episode’s feature is – Launching the Illin…

• North and South Carolina QSO parties are in the books.
  Not much action during the contest. I found the State QSO party challenge to be a very good way to get on the radio often and get my CW skills a workout. So far I have taken part in the BC, VT and MN QSO parties and this weekend it is the North an…

• Weekly Propagation Summary – 2020 Mar 02 16:10 UTC
  Here is this week’s space weather and geophysical report, issued 2020 Mar 02 0510 UTC. Highlights of Solar and Geomagnetic Activity 24 February – 01 March 2020 Solar activity was very low over the period under a spotless solar disk. No Earth-directed CMEs were observed. No proton events were observed at geosynchronous orbit. The greater […]

• LHS Episode #329: The Third Dimension
  Welcome to the 329th episode of Linux in the Ham Shack. In this short topics episode, the hosts discuss the Coronavirus and Hamvention, open positions at the ARRL, Kubeflow, LineageOS, SRain, Sweet Home 3D and much more. Thank you for listening and hope to see you all in Xenia this May.

  73 de The […]

  

• Attracting Youth to Ham Radio: Get Out of Their Way!
  Amateur radio has a demographic problem. In the U.S., there is a clear belief that members of the hobby are old. And getting older. What that means in actual age distribution just isn’t known. Unfortunately, our “visions of gray” are based not upon accurate scientific measurement but on the assembled impressions we get through our […]

• What About the Yaesu FT-4XR?
  A few years ago, the Baofeng UV-5R set a new price point for an entry-level handheld transceiver and quickly became the “easy choice” for a newly licensed Technician. It is a very impressive piece of technology for the money (about $30). However, it is well known that the UV-5R struggles to meet the FCC Part … Continue reading What About the Yaesu FT-4XR? →

  The post What About the Yaesu FT-4XR? appeared first on The KØNR Radio Site.

  

• LHS Episode #330: The Weekender XLIII
  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 fun. Thanks for listening and, if you happen to get a chance, feel free to call us or e-mail and send us some feedback. […]

  

• Yep, Winterfest Got Their Windfall!
  The hamfest held each year in the St. Louis suburb of Collinsville, IL is called Winterfest. I blogged earlier about the hamfest getting a windfall this year in adding to their growing set of Forums and other programs on contesting and so forth by welcoming the Wes Schum Symposium. Here’s how the Winterfest 2020 Chair […]

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Matt W1MST
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editor
Twitter / Facebook

How to set up your own ham radio blog – Get started in less than 15 minutes

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

Newsletter #163

View in browser FILTER DESIGN SOFTWARE Conclusion of a short tour through filters and filter design. Filters are one of the most important and widely-used circuits in all of radio at any frequency. Understanding how they are specified and used will make you a better electronics designer, whether you build your own or simply buy them from a vendor. Filter It Now! Ask an Engineer Learn why engineers use Rohde & Schwarz instruments in their labs. See Reviews Advertisement UV SANITIZER: HOW TO BUILD ONE AND MEASURE ITS EFFICACY Build a UV sanitizer from a UV LED panel and a small reflective enclosure. With all the focus on the coronavirus (or COVID-19), there has been an upsurge in demand for a variety of germ-related products. This science project presents an afternoon build of assembling a UV sanitizer from a UV LED panel and a small reflective enclosure. With STEM students in mind, we’ll look at measuring the efficacy of the sanitizer on bacteria through the use of inexpensive, premade agar plates. Build It Now! BUILDING YOUR OWN MICROCONTROLLER Designing a softcore using the Zilog Z8 Encore! (a.k.a., eZ8) to learn more about VHDL (VHSIC hardware description language), FPGAs (field-programmable gate arrays), and microprocessor cores themselves. Ever wanna make your own MCU? Then, follow along with this discussion that can be useful for anyone wanting to learn about computing basics, microcontrollers, embedded programming, and/or VHDL. We will utilize the Zilog Z8 Encore! (a.k.a., eZ8). It’s an eight-bit microcontroller core with a simple — yet powerful — instruction set and a very nice on-chip debugger. Read It Now! RECEIVING DATA WITH WEB BASED SHORTWAVE RADIOS Discover the secrets to utilizing free Web based shortwave radio receivers. Your computer and the Internet give you free access to over 100 web based shortwave receivers that you can use as if they were your own. Unfortunately, employing these radios to decode data transmissions can be very difficult or impossible — unless you know the secret. Read It Now! Altura MIDI Theremin Continuity Tester Kit RetroGame The Mentor’s Friend Nuts & Volts On CD-ROM 3D LED Matrix Cube TEENSY Graphics Interface Arduino Graphics Interface You are receiving this email because you have been a subscriber to Nuts & Volts Magazine, or have requested to receive our email newsletters. You may unsubscribe, change your email address or content preferences at any time through the links provided below. Nuts & Volts Magazine | 2279 Eagle Glen Pkwy #112-481, Corona, CA 92883 951.371.8497 | editor | www.nutsvolts.com T & L Publications, Inc, 2279 Eagle Glen Pkwy #112-481, Corona, CA 92883, United States, 951 371-8497 Unsubscribe Manage preferences

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Amateur Radio Weekly Newsletter

Ham radio news, commentary, giveaways, and more!
Celebrating 24 years of service – 1995-2019
Over 7,000 subscribers!
Unsubscribe

Saturday, February 29, 2020

• Morse Runner can now run on a Mac!
  In my quest to improve my CW I wanted to add Morse Runner to my PC I am not sure where it went as I am sure it was on my PC. It may not have been reloaded one time I reformated my hard drive in the past. I returned to Alex VE3NEA site to download his M…

• Weekly Propagation Summary – 2020 Feb 24 16:10 UTC
  Here is this week’s space weather and geophysical report, issued 2020 Feb 24 0149 UTC. Highlights of Solar and Geomagnetic Activity 17 – 23 February 2020 Solar activity was very low. No active regions with sunspots were observed and no apparent earth-directed CMEs were detected this period. No proton events were observed at geosynchronous orbit. […]

• So You Think You Have a Big Antenna
  Many hams put up some pretty impressive antenna farms with large towers and big arrays. I have a small tower up at the cabin but it is quite puny (about 30 feet) compared to these more serious stations. I like to check out big antenna installations, especially the big commercial towers, as we travel around … Continue reading So You Think You Have a Big Antenna →

  The post So You Think You Have a Big Antenna appeared first on The KØNR Radio Site.

  

• ARRL CEO Is Out! YouTubers Bunch #10
  A while back, several other Ham Radio YouTubers and myself started these collaboration videos and the feedback we have received on them has been very positive. Thanks to all in the Ham Community who support our efforts. In this 10th episode of our Collaboration efforts, we talk about the most reent CEO of the ARRL, […]

• The Ultimax DXtreme
  The retired W1SFRFor the past few days, our weather here on the East coast has been excellent nice warm weather (up to +10) with no rain and just great sunny skies. On the second day of this great weather, I decided it was time to put up my new Ultimax…

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Matt W1MST
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editor
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How to set up your own ham radio blog – Get started in less than 15 minutes

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

Unsubscribe | Change Subscriber Options

View in browser FILTER BASICS: STOP, BLOCK, AND ROLL(OFF) A discussion on filter basics to give you a better understanding of how filters behave and are specified. A casual observer might think that wireless systems consist primarily of filters connected by the occasional bit of circuit. Block diagrams of transceivers often include as many filters as any other function. This is true at the system level, just as it is at the circuit level — and many circuits behave in a filter-like way, whether intended to be a filter or not! That makes understanding filter basics important for wireless success. Filter It Now! This Changed Everything – Complete Solutions for One Price Save up to $18,000 on full-solution instruments from Rohde & Schwarz, including oscilloscopes, spectrum analyzers, and power supplies. These instruments come fully loaded with all the bandwidth, channels, memory, spectrum measurements, and signal generation you’ll ever need. Take advantage of this industry first, now through June 30. View Solutions & Pricing Advertisement BUILD A CONFIGURABLE CLOCK/TIMER You’ll be “alarmed” at all the cool features this unit has! This project implements a clock/timer device with several handy features other than just a simple alarm. It utilizes a 16-bit PIC, the MPLab Code Configurator, and a serial LCD. Build It Now! CNC ROUTERS: BACKLASH Whether you own or intend to build/buy a CNC router, make it a habit to routinely check for backlash. Backlash can have a detrimental effect on tool life and on your CNC router’s ability to maintain accurate positioning of the X, Y, and Z axes. In this article, we’ll look at the problem of backlash in CNC routers. Once you understand what role it plays, you’ll want to diminish its impact on your machine. Whether you own or intend to build/buy a CNC router, make it a habit to routinely check for backlash. It could save you some money and/or aggravation. Read It Now! WHATEVER HAPPENED TO THESE WIRELESS TECHNOLOGIES? A list of “forgotten” standards and services. There are dozens of wireless or radio standards with different combinations of spectrum, modulation, and service. Some have survived and others have faded away. Some new standards have been added like 5G and 802.11ax or Wi-Fi 6, but what standards or services have disappeared? Here’s my list of “forgotten” wireless technologies. Read It Now! Altura MIDI Theremin Continuity Tester Kit RetroGame The Mentor’s Friend Nuts & Volts On CD-ROM 3D LED Matrix Cube TEENSY Graphics Interface Arduino Graphics Interface You are receiving this email because you have been a subscriber to Nuts & Volts Magazine, or have requested to receive our email newsletters. You may unsubscribe, change your email address or content preferences at any time through the links provided below. Nuts & Volts Magazine | 2279 Eagle Glen Pkwy #112-481, Corona, CA 92883 951.371.8497 | editor | www.nutsvolts.com

Amateur Radio Weekly Newsletter

Ham radio news, commentary, giveaways, and more!
Celebrating 24 years of service – 1995-2019
Over 7,000 subscribers!
Unsubscribe

Saturday, February 22, 2020

• The G3LEK key that turned up in Chile?
  There was always a key player who I have always credited for getting me interested in this radio hobby and electronics. Len (G3LEK), who lived at the time in the 1970’s five doors away from me in Fortescue Lane, Rugeley, during my youth. The first time…

• AmateurLogic 140: New Stuff & Old Stuff
  AmateurLogic.TV Episode 140 is now available for download. George, Tommy and Wayne make nice finds at the Capital City Hamfest. Krewe of Eve Mardi Gras Ball and a tasty treat. Icom IC-705 Quick Preview. New portable QRP antennas. Plus lots more. 1:20:…

• ICQ Podcast Episode 318 – South Essex Rally Review
  In this episode, Martin M1MRB is joined by Chris Howard M0TCH, Martin Rothwell – M0SGL, Frank Howell – K4FMH and Bill Barnes – N3JIX to discuss the latest Amateur / Ham Radio news. Colin M6BOY rounds up the news in brief and this episode’s feature is -…

• Weekly Propagation Summary – 2020 Feb 17 16:10 UTC
  Here is this week’s space weather and geophysical report, issued 2020 Feb 17 0312 UTC. Highlights of Solar and Geomagnetic Activity 10 – 16 February 2020 Solar activity was very low throughout the period. No active regions with sunspots were observed and no earth-directed CMEs were detected. No proton events were observed at geosynchronous orbit. […]

• ARRL DX CW contest.
  It was nice to see the bands very active with DX for me it was from 15m to 40m. The Endfed I have at the moment will not get me onto 80m BUT the new Endfed I purchased (going up in warmer weather) will give me 80m and maybe more. This year I spent a bi…

• Contest Morse Code, Computers, and an Icom Rig
  This past weekend (third full weekend in February, February 15-16, 2020) is the ARRL International CW Contest (ARRL DX CW link: http://www.arrl.org/arrl-dx ). This is interesting to my study of radio signal propagation as a columnist and as an amateur radio operator because of the contest objective: “To encourage W/VE stations to expand knowledge of […]

• LHS Episode #326: Ni Hao, Moto
  Hello and welcome to the 326th installment of Linux in the Ham Shack. In this short-topic format show, the hosts discuss a major win for Motorola, the FCC and 5.9GHz, operating practices in Australia, iText, FreshRSS, GridTracker and much more. Thank you for listening and please, if you can, donate to our Hamvention 2020 […]

  

• Barn Door Wide! Hunting For NDBs In CLE253
  This weekend’s upcoming CLE event will be the "Barn Door" listening event.Participants are required to use receivers without the usual narrow filters. Some of the older tube radios can do this easily as can most homebrew receivers … especially the …

• LHS Episode #327: The Weekender XLII
  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 fun. Thanks for listening and, if you happen to get a chance, feel free to call us or e-mail and send us some feedback. […]

  

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Matt W1MST
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editor
Twitter / Facebook

How to set up your own ham radio blog – Get started in less than 15 minutes

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Newsletter #161

View in browser A DISCUSSION ON DBS AND RF POWER METERS Learn basic theory on the decibel and build an affordable RF power meter at the same time. This article discusses basic theory on the decibel unit and its role in electrical measurements of power, etc. It also describes the construction of an RF power meter which in the past has been difficult to use and expensive to own. With the breakthrough of new ICs in recent years, most of the former problems and expense have been eliminated. This is a simple and inexpensive unit to build, but has the accuracy, resolution, and dynamic range that was only obtainable in lab quality test equipment a decade or so ago. This kind of test equipment is almost mandatory for amateurs, radio frequency work, or test equipment calibration. Also, when built as described, it’s a very professional looking piece of gear that anyone would be proud to display on their test bench. Read It Now! Coming Soon from Pico Technology! The Next-Generation Scope Offering more inputs with8 analog + 16 digital channels (MSO), deeper 4 GS memory buffer, higher bandwidth of 500 MHz and smarter 8/10/12-bit FlexRes® architecture plus 21 serial protocol decoders all included standard, our new scope is something our competitors don’t want you to see. Want the details? Get the Details Now! Advertisement BUILD THE IOT SUMP PUMP (OR PRETTY MUCH ANYTHING IOT) My goal for this project was to design a device that will monitor the sump pump water level in my basement and text me if the water level gets too high. Although the device described here will send a text as a sump pump warning, this project applies to pretty much anything with an appropriate sensor. An open door or window, a tripped laser beam, a pressure change on a pressure plate, a proximity sensor, etc., could all be converted into a text message warning. Build It Now! BUILD A HEADPHONE AMPLIFIER — TIMES 3! Choose from three different headphone amps to suit your needs. There are situations where a low output impedance to headphones is required. This article discusses three different versions of headphone amps to fit your particular application: a stereo amp powered by the power line; a battery-operated mono amp for a crystal set; and a battery-operated amp for a ceramic cartridge. Build It Now! IOT MADE EASY It’s getting easier than ever to make your own stuff to connect to the Internet via IoT. The whole Internet of Things (IoT) phenomenon has been around for a while now. But have you tried to create an IoT device on your own? If so, you know it’s not easy. However, it is now easier than ever as many of the manufacturers of IoT wireless chips and modules are providing the hardware and software to make an IoT device happen with minimum work. One example is the Wireless Xpress BGX13P module starter kit from Silicon Laboratories. Read It Now! Altura MIDI Theremin Continuity Tester Kit RetroGame The Mentor’s Friend Nuts & Volts On CD-ROM 3D LED Matrix Cube TEENSY Graphics Interface Arduino Graphics Interface You are receiving this email because you have been a subscriber to Nuts & Volts Magazine, or have requested to receive our email newsletters. You may unsubscribe, change your email address or content preferences at any time through the links provided below. Nuts & Volts Magazine | 2279 Eagle Glen Pkwy #112-481, Corona, CA 92883 951.371.8497 | editor | www.nutsvolts.com T & L Publications, Inc, 2279 Eagle Glen Pkwy #112-481, Corona, CA 92883, United States, 951 371-8497 Unsubscribe Manage preferences