Michael K Johnson
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mcdanlj.social.makerforums.info.ap.brid.gy
Michael K Johnson
@mcdanlj.social.makerforums.info.ap.brid.gy
1st Fedora Project Lead. Co-author Linux Application Development. Pendo Distinguished Engineer. Ex-{Linux Journal, Red Hat, rPath, SAS}. Christian. Father […]

🌉 bridged from ⁂ https://social.makerforums.info/@mcdanlj, follow @ap.brid.gy to interact
Reposted by Michael K Johnson
Oh yeah,
if you're annoyed that the models can't predict where the storm will go,
you can thank Trump, Musk, and the Republican administration for cutting back weather monitoring for the past year.

And yeah, the models aren't going to be more accurate for a few years to come.

(Make sure to […]
Original post on mindof.jrconlin.com
mindof.jrconlin.com
January 23, 2026 at 1:46 AM
Today I released version 0.7 of my print-in place single-paddle Morse code key.

This will function as release notes:

* The most important practical change is that **the slot in the lever for the stabilizer bar is taller,** so that it doesn't bind […]

[Original post on social.makerforums.info]
January 19, 2026 at 7:50 PM
I've been working on assembling my one-kilogram QSO¹ kit. I set a 1kg limit _including the case_ into which to cram everything I need to work POTA on a whim because it's just bouncing around in the bottom of my backpack. I'm still working out what to carry for filter, choke, and ununs; after I'm […]
Original post on social.makerforums.info
social.makerforums.info
January 18, 2026 at 10:29 PM
Today at work, hamalert went off on my phone. @qrper was activating the state capital, two blocks away from me, on 20m. For once, not in my skip! I grabbed my QMX, ran up three flights of stairs out onto the patio, pulled all the parts together, and...

_silence._

I looked off the balcony at […]
Original post on social.makerforums.info
social.makerforums.info
January 16, 2026 at 3:44 AM
I bought a pair of 25' Intellitron stainless steel whip antennas from GigaParts while they were on sale ("two is one and one is none" and the second one tipped me me into "free shipping" making its marginal cost pretty low). On removing them from the […]

[Original post on social.makerforums.info]
January 13, 2026 at 3:03 AM
Reposted by Michael K Johnson
Dunking on people and companies is more popular than saying anything positive, but, #mozilla with #firefox created the web as we have it today.

Without them, without Gecko, we might be trying to run Internet Explorer 6.1 service pack 15.

Y'all don't remember how broken the web was with ie6 as […]
Original post on mastodon.tmm.cx
mastodon.tmm.cx
January 11, 2026 at 2:18 AM
RE: https://social.makerforums.info/@mcdanlj/115834722555775922

This morning, I heard the first report of someone passing their US ham radio exam by using Open Ham Prep to study! 🎉

Brad added two huge new features over the past week!

A […]

[Original post on social.makerforums.info]
January 10, 2026 at 6:20 PM
I spent quite a few evening hours this past week modeling the production Morserino M32 Pocket case in FreeCAD. The original had basically been forked in a mesh editor, which made it hard to work from. Hans (of QRP Labs) kindly released his STLs, which made this work easier and the resulting […]
Original post on social.makerforums.info
social.makerforums.info
January 10, 2026 at 3:51 PM
Reposted by Michael K Johnson
I'm watching people in my feed screaming at each other over Firefox's "AI kill switch" this morning with some trepidation.

As far as I'm concerned, Firefox already has an AI kill switch. It's called `browser.ml.chat.enabled`, I set it to `false` more or less the day it appeared, it hasn't […]
Original post on social.treehouse.systems
social.treehouse.systems
January 7, 2026 at 10:55 AM
Happy #freecadfriday! This week I've been working on re-modelling the case for the Morserino M32 Pocket. At least four different people had worked on the case. It was initially made in FreeCAD, but then was modified with other software, and the […]

[Original post on social.makerforums.info]
January 9, 2026 at 1:38 PM
I just finished¹ building a QRP Labs QMX this weekend, and after a few tests, tonight I got on the air with it and made my first QSO with it. All the way to the Kansas City, MO area, with AK0A Ken. Using a radio about the size of a deck of playing cards. The radio is smaller than the USB power […]
Original post on social.makerforums.info
social.makerforums.info
January 6, 2026 at 12:23 AM
Reposted by Michael K Johnson
My friend Brad Bazemore KK4PWJ wanted a totally free — **zero cost, 100% open source** — comprehensive US Amateur Radio study app. His day job is in testing, and he _really knows his stuff_.

So he built Open Ham Prep.

I'm _super grateful_ for […]

[Original post on social.makerforums.info]
January 4, 2026 at 3:34 AM
My friend Brad Bazemore KK4PWJ wanted a totally free — **zero cost, 100% open source** — comprehensive US Amateur Radio study app. His day job is in testing, and he _really knows his stuff_.

So he built Open Ham Prep.

I'm _super grateful_ for […]

[Original post on social.makerforums.info]
January 4, 2026 at 3:34 AM
RE: https://fosstodon.org/@paulox/115819064042518517

Happy Public Domain Day 2026!

I see some favorites in here, that I already own in print but am glad to see in electrons, such as.

* Dorothy Sayers' _Strong Poison_

* Arthur Ransome's _Swallows and Amazons_

And books I haven't read […]
January 1, 2026 at 1:08 PM
This might explain why I keep thinking "I could have sworn I took more pictures than that" when I'm trying to take a lot of pictures to document a build in order to create illustrated instructions. 😦 […]
Original post on social.makerforums.info
social.makerforums.info
December 29, 2025 at 3:41 PM
For my linked dipole, I came up with using high-shrink (I use 4:1) marine (lined with heat-activated glue) heat shrink tubing and dacron line for making neat links that wind nicely and avoid putting stress on the wire.

Today I realized that I could […]

[Original post on social.makerforums.info]
December 28, 2025 at 2:54 AM
The case for my 28g QRP dual-ported (9:1 and 49:1) unun cracked from tightening one of the terminal screws too tight, and from having printed the box with too few perimeters, so it wasn't really strong enough. I had designed it so that the coax was […]

[Original post on social.makerforums.info]
December 27, 2025 at 6:31 PM
I've spent the past year learning Morse code, and it's ended up being a great deal of fun. I've had a lot of questions. I've tried to share what I've learned with others as I've gone along.

To celebrate the end of the year, I wrote a combination of information, story, and advice. How to get […]
Original post on social.makerforums.info
social.makerforums.info
December 27, 2025 at 1:12 PM
I post a lot here Maker Forums Discourse, and have kind of not gotten around to blogging for a while. But today I had time to reflect on my first full year of #hamradio — this new hobby has surprised me in a lot of (good) ways.

https://musings.danlj.org/2025/12/24/reflections-on-a-year-of-ham-radio
Reflections on a year of ham radio
When I was about twelve, I was captivated by the idea of “ham” (amateur) radio and wanted to become a ham radio operator to talk to people around the world. A lot of the learning was easy enough for me, except for two things: I had great trouble memorizing all the frequencies, and the way I was taught Morse code was by memorizing visual flash cards. Back then, you were required to operate with only Morse code for a year as a “novice” before you were allowed to upgrade your license and use any other modes. You couldn’t _talk_ on the radio until you had used Morse code for a year, and you needed to get better at Morse code before you could upgrade. You had to pass a 5 words per minute (WPM) test perfectly to become a Novice, and I think at that time it was 13WPM for General, and 20WPM for Amateur Extra. I never got past 4WPM, and eventually gave up the dream and moved on to other things. Then when I experienced the early internet in college, I got to live my dream of talking to people around the world, so when the Morse requirement was dropped for ham radio in the US, I didn’t pursue a ham radio license. When hurricane Helene arrived in NC, I was cut off from communication with one of my (adult) children, who was living in the affected area. Then, shortly after we regained contact, I learned that information was getting in and out of western North Carolina in large part by ham radio. It was too late to be able to be helpful for this disaster, but now I had a reason to get my license to be able to help next time. I started studying every waking moment that I wasn’t working. The test no longer expected you to memorize every frequency in the band plan. A lot of the information made sense to me because of my other interests, too. I passed all three tests in one sitting, becoming, as I put it, “the world’s least qualified Amateur Extra” for at least a short time. Other than wanting to be prepared and able to help in the next disaster, I had really no idea what I wanted to do with ham radio. I thought it might be a fun hobby to dabble in from time to time. I was confident of only one thing. I was **not** going to touch Morse code, my childhood failure. Ham radio has been full of surprises for me. ## Morse Surprise I bought VHF/UHF radios (line-of-sight frequencies, not round-the-world frequencies) and tried participating in local “nets” where you check in at a fixed time, and the net controllers gives you a time to say whatever you want to say. It works as practice for when you need to have organized communications in an emergency (as well as been a social outlet), but as a pilot who trained carefully to use only the minimum number of words on the radio, I found myself “mic-shy” and checking into the net “in and out” — meaning “just record that I was here, I don’t have anything else to say.” The nets were held using a “repeater” — our radios can’t all reach either other directly, but everyone can reach an antenna high up on a tower, and can hear what that radio transmits, so we transmit to the receiving radio on the tower using one frequency, and listen to the transmitting radio on the tower on another frequency, and can hear each other indirectly through it. By the rules of amateur radio, these repeaters must identify the license under which they are operating from time to time. Many of them do this by quietly and rapidly transmitting their ID in Morse code. Two weeks into having my license, I broke down and decided I wanted to be able to understand the repeater IDs. I signed up on LCWO to learn Morse code. I studied lightly, off and on, for a couple months, but then in December 2024 started to get more serious. By January, I knew that I wanted to become good at using Morse code on the radio. By March, I bought an additional radio primarily for doing portable operations using Morse code. Studying Morse code started out as “type 2 fun” — I was often frustrated by how slow I was learning while practicing, but still glad I was learning. As I learned, it turned into “type 1 fun” — fun and relaxing in the moment. I’m not yet fluent, but I keep seeing signs of (slow) progress. This is the hardest I’ve worked to learn any one thing in at least a decade. Probably the single hardest learning I’ve done since becoming an instrument-rated pilot. I think I’m actually _really bad_ at learning Morse code. Most people who I talk to who have done the kind of intensive drill I have over the past year are far more fluent than I am. But now I go practice in order to relax. I even practice Morse code entirely in my mind to relax to go to sleep! It’s really been like learning a language. When it flows best, I am not translating it; the dits and dahs themselves carry meaning, and translating into letters and words is extra work. I’ve never become fluent in another spoken language, just learned some rudiments of a few of them. So perhaps it’s not a huge surprise that it’s taking me a while to become fluent in Morse. But now I _want_ to be fluent in Morse. I’ll keep learning in the new year. ## Family Surprise My wife and one (so far!) of my (adult) offspring have joined me and gotten their licenses. My wife has joined me as an Amateur Extra licensee. Her special interests are being the “net controller” running nets for community service events like bike rides and teaching ham radio classes. We also sometimes go to parks together to both spend time together outdoors and also participate in the Parks on the Air (POTA) program, using portable radios in state and national parks to see who we can talk to on any particular day. ## Community Surprise I’m fortunate that my most-local ham radio club is a very active and friendly community. Raleigh Amateur Radio Society (RARS) has some sort of get-together most weeks, and a large variety of expertise and encouragement. Of its 500–600 members, probably around 100 are really active in one or another club activity. I didn’t expect the ham club to become one of my social anchors, but it has. I am there about every other week, sharing ideas with and learning from other hams. ## Hobby Surprise Ham radio is “ten hobbies in a trench coat masquerading as one hobby” and hams have wildly different interests. Some only want to operate radios. Some find designing and building things more interesting than actually talking to people over the air. I love making things; it’s why 3D printing and hobby machining have been so fun for me. I found that designing and making antennas has been an unexpected hobby. I joke that it’s my “antenna of the month club” hobby, but the joke is not far off reality. I think I have designed and/or made either a new antenna or a newly-designed part of or new feature for an antenna at least a dozen times this year. Some of them have turned into open source projects that I’ve published, like my QRP 6/10/12/15/17/20/30/40m inverted-V linked dipole. This goes beyond antennas; I also designed a 3D-printed single-lever paddle for sending Morse code, and have fixed things for fellow hams. There is more to learn in this hobby than one person can learn in a lifetime, and since I started well more than halfway through a typical full lifetime, I can’t imagine ever becoming bored. * * * I’m looking forward to a new year of learning more.
musings.danlj.org
December 24, 2025 at 7:26 PM
Reposted by Michael K Johnson
There are plenty of #hamradio CW operators who, as a politeness, greet you by name when you have a QSO, even a POTA QSO. But they also see "Michael" and send "Mike" because "Michael" takes a long time to send.

I get it, "Mike" is shorter, but... _I just don't go by "Mike"_

I _do_ go by "MKJ' — […]
Original post on social.makerforums.info
social.makerforums.info
October 31, 2025 at 12:58 AM
My #hamradio #pota fun today was activating US-1904 Myakka River State Park on 20m and 17m, with 5W CW, on my new edition of my inverted-V linked dipole hoisted with a POTA33H mast strapped to a shelter with velcro. I hunted on 20m and 17m, then […]

[Original post on social.makerforums.info]
December 23, 2025 at 1:58 AM
Here is a complete description of the changes that are coming for the US #hamradio Technician exam on 1 July 2026:

https://gist.github.com/taxilian/c6fca675a58fd4b165e97b3334fc8f66

The new questions won't be added to the question bank until then, but they are already good to know the answers […]
Original post on social.makerforums.info
social.makerforums.info
December 21, 2025 at 1:20 PM