Here’s the third of three video introductions to Section 4.2, Electrical Principles, in the ARRL Extra Class License Manual for Ham Radio. This video focuses on resonance, Q, and magnetic cores, particularly on resonance. Resonance is the fundamental building block that Mother Nature provides that makes radio possible.
You can return to the list of Amateur Extra videos by clicking here. Please leave a comment if you have comments, concerns, questions, or suggestions.
Here’s your video introduction to the ARRL Extra Class License Manual for Ham Radio, Section 4.2. This is the second of three videos covering this section; this section discusses reactance, or how inductors and capacitors react to alternating current.
If you have questions, comments, concerns, or suggestions, please comment! You can return to the list of Amateur Extra videos by clicking here.
Here’s some summer flowers and waterfalls at Yankee Boy Basin, outside Ouray, Colorado. (1 min, 43 sec)
The music is “Sleepy Jake” by Silent Partner, courtesy the YouTube audio library.
Here’s your video introduction to the ARRL Extra Class License Manual for Ham Radio, Section 4.2, Electrical Principles. I’ve divided this rather lengthy section into three videos, of which this is the first; this video covers fields, energy, and time constants.
After you have watched the video, studied the material in the text (up to but not including the section on Phase Angle), are sure that you understand the answers to the relevant questions from the question pool, click here to return to the list of Amateur Extra videos.
Please leave a comment if you have questions, comments, concerns, or suggestions.
Here’s your video introduction to Section 4.1 of the ARRL Extra Class License Manual for Ham Radio, which covers Radio Mathematics. This is our first deep dive into the technical material. I’ve tried to provide extra explanations to help. Please post a comment if you have questions or concerns.
After you have viewed this video, studied the material in the text, and ensured you understand all the answers to the appropriate questions in the question pool, you may return to the list of Amateur Extra videos by clicking here
I added some background music. Let me know what you think.
Friend Gary, my wife Loretta, and I traveled the newly-opened Parallel Trail, Forest trail #139, in the Uncompahgre National Forest near Montrose, Colorado. Gary has a Polaris RZR, as do my wife and I. The RZRs are 50 inches wide, so they are allowed on ATV-only trails in Colorado, and the Parallel Trail is an ATV trail. (Motorcycles, horses, and hikers are also allowed, but no Jeeps.) This short video shows scenes from the trail plus shows the map and how to get to the trail.
Here’s a two-minute video with highlights of our trip yesterday to Imogene Pass, not far from our home. The ride was sponsored by the Uncompahgre Valley Trail Riders Association.
Imogene Pass is located at 13,140 feet above sea level in the San Juan mountains in Colorado, astride Ouray and San Miguel. It’s a popular tourist destination for those who like incredibly rough roads! My wife and I made the trip in our Polaris RZR. The camera is a GoPro Hero2 HD. The video was assembled in CyberLink PowerDirector 12, and the music is courtesy of YouTube’s audio library.
Here’s your video introduction to Section 3.6, Miscellaneous Rules, in the ARRL Extra Class License Manual for Ham Radio. If you have comments, questions, concerns, or suggestions, please post a comment below.
After you’ve viewed the video, study the material in Section 3.6 and be sure you understand all the answers to the questions in the pool. You can return to the list of Amateur Extra videos by clicking here.
Here’s a video I put together for the Montrose (Colorado) Amateur Radio Club.
Field Day is the biggest ham radio event of the year! The Montrose, Colorado, Amateur Radio Club put on its event atop Sunset Mesa to the west of downtown Montrose, Colorado. The point of Field Day is to encourage hams to become proficient at communicating in emergency situations. As you can see, the group is running on generator power under field conditions. Oh, the other point? Eat, chat, and enjoy each other’s company!
Listen to the dialog too—some is quite funny. I didn’t add any music so it was easier to hear the dialog. I made each clip very short—most don’t exceed a few seconds. Videography and editing by Dave Casler, amateur callsign KEØOG.
Here’s a “behind the scenes” look at making one of the ham radio instructional (training) videos, in this case for Amateur Extra Lesson 3.5. The purpose of these instructional videos is to help people get their ham licenses, and they are companions to the respective ARRL study guide. Learn more by clicking on the appropriate heading in the right hand column of every page on this site.
I captured the video with my Brinno TLC200 Pro time-lapse camera. You can clearly see the equipment I use. I stand on that little rug behind the music stand – it keeps me from wandering too far. The green screen is separately lit by three fluorescent fixtures: one above and one on each side. I use a rather bright soft box as the key light, and another at half-brightness as the fill light. I also have two lights mounted on the bar as hair/back lights, which makes it easier to pull a key (chroma key/green screen) in post production in CyberLink PowerDirector 12. I use a teleprompter to keep myself on script and avoid the “uhs” that come otherwise. Plus, with the teleprompter, I can capture several takes of the same script segment and choose the best one (meaning no errors, dropped words, substituted words, mispronounced words, or outright flubs).
Making the ham radio instructional videos is a lot of work! I do it because the feedback I get indicates they’re useful. I’ve already created complete sets for Technician and General, and am now working on the Amateur Extra series. The first videos were pretty primitive; I’m trying to improve production values with each one I make. And, yes, I really enjoy making them.