David Casler

Latest articles

An Unusual Jpole Antenna (#302)

Here's an unusual Jpole antenna sent me by Jerry Bustin, KR7KZ. He first made these in the 1970s while stationed in Okinawa. Interesting feed arrangement. To get the pdf drawing, go here: https://dcasler.com/wp-content/uploads/2020/09/j-pole-drawing.pdf Subscribe: https://youtube.com/user/davecasler. Ask Dave Playlist: https://goo.gl/inaQeB. Tip...

How to Grow Your Ham Radio Club Membership (#301)

Is your ham club moribund? Same old boring stuff? Attendance straggling? Here are some things that can help! Dig in and let me know what works for you. Subscribe: https://youtube.com/user/davecasler. Ask Dave Playlist: https://goo.gl/inaQeB. Tip Jar: http://ke0og.net/tip-jar To learn more about me, visit: http://www.dcasler.com/about/ Tip...

Amateur Extra Lesson on Preparation for Test Taking

You're done studying! Time to take the test! This video describes that process. See http://www.arrl.org/find-an-amateur-radio-license-exam-session or, for online sessions, https://hamstudy.org/sessions. Subscribe: https://youtube.com/user/davecasler. Ask Dave Playlist: https://goo.gl/inaQeB. Tip Jar: http://ke0og.net/tip-jar To learn more...

Amateur Extra Lesson 11.3, Grounding and Bonding (#AE2020-11.3)

Here's your video introduction to Section 11.3, Grounding and Bonding, in the ARRL Extra Class License Manual for Ham Radio, 12th edition, 2020-2024. See also my video Ask Dave #8, https://youtu.be/Luy8XP8O390. Subscribe: https://youtube.com/user/davecasler. Ask Dave Playlist: https://goo.gl/inaQeB. Tip Jar: http://ke0og.net/tip-jar To learn...

Amateur Extra Lesson 11.2, RF Exposure (#AE2020-11.2)

Here's your video introduction to Section 11.2, RF Exposure, in the ARRL Extra Class License Manual for Ham Radio, 12th Edition, valid 2020-2024. Describes effects of RF radiation on people and some precautions to take. Subscribe: https://youtube.com/user/davecasler. Ask Dave Playlist: https://goo.gl/inaQeB. Tip Jar: http://ke0og.net/tip-jar ...

17 September 2020 Thursday (0100 UTC Friday) Q&A Live Stream

Come join the live stream! Starts 15 minutes early for chattering. 15:23 Q&A Starts 19:39 Sherri Trahan, Where can I learn about ham radio? 22:20 Jeff Wittern, I asked about my experiences putting up a high gain 680 antenna, I now have it mounted on a 13 inch mast but did not take into account that the counterposes would droop so much. Would...

Amateur Extra Lesson 11.1, Hazardous Materials (AE2020-11.1)

Here's your video introduction to Section 11.1 Hazardous Materials, in the ARRL Extra Class License Manual for Ham Radio, 12th edition, valid 2020-2024. Please note this is not a safety briefing for these materials; it's just an introduction. Subscribe: https://youtube.com/user/davecasler. Ask Dave Playlist: https://goo.gl/inaQeB. Tip Jar: http://ke0og.net/tip-jar ...

Amateur Extra Lesson 10.4, VHF/UHF/Microwave Propagation (#AE2020-10.4)

Here's your video introduction to Section 10.4, VHF/UHF/Microwave Propagation, in the ARRL Extra Class License Manual for Ham Radio, 12th Edition, valid 2020-2024. Covers things such as transequatorial propagation, troposcatter, moonbounce, and the like. Subscribe: https://youtube.com/user/davecasler. Ask Dave Playlist: https://goo.gl/inaQeB. Tip...

Amateur Extra Lesson 10.3, HF Propagation (AE2020-10.3)

Here's your video introduction to Section 10.3, HF Propagation, in the ARRL Extra Class License Manual for Ham Radio, 12th Edition, 2020-2024. Be sure to also study the short paragraph in the book on Ordinary and Extraordinary waves. Subscribe: https://youtube.com/user/davecasler. Ask Dave Playlist: https://goo.gl/inaQeB. Tip Jar: http://ke0og.net/tip-jar ...

Amateur Extra Lesson 10.2, Solar Effects (AE2020-10.2)

Here's your video introduction to Section 10.2, Solar Effects, in the ARRL Extra Class License Manual for Ham Radio, 12th Edition, 2020-2024. This short video supplements the more extensive material covered by the General Class License Manual videos. Subscribe: https://youtube.com/user/davecasler. Ask Dave Playlist: https://goo.gl/inaQeB. Tip Jar:...

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