My second interview with coax expert Ray Nelson, N1MPD, covers how coax can go bad, primarily due to water entry. We talk about the proper method of waterproofing coax connections, and how to spot the poor quality coax that masquerades as the good stuff. MPDdigital is at www.mpddigital.us.
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For Tom Medlin’s show by KEØOG
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Description – PowerDirector15 http://goo.gl/FLPbnK. Here’s an out-of-cycle video describing the video editor I rely on heavily in the production of the Ham Radio Answers and Ask Dave videos, as well as the Tech, General, and Amateur Extra training videos. Note: I am a CyberLink “Most Valued Professional” and they provided this $100 product to me for free, as they have for the past several years. My next ham radio video will be on Wednesday as usual.
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My new Rigol DG1024Z Arbitrary Function Generator, or more normally, a signal generator, looks like a great addition to my test equipment. Caveat: this is not sponsored. I paid for it using tips, and I intend to use it to make videos for you to watch. It provides sine waves and other functions up to 25 MHz. You’ll see this more in upcoming videos. If you purchase this using the following link, it won’t change your price, but a small amount will support my Ham Radio Answers channel http://amzn.to/2xnjeY9.
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Roberto Arranaga, KX4CY, felt that commercial small HF loops were too expensive, so he’s made his own for sale at www.pracomm.store which has an interesting tuning method using a wide range tuner (such as the MFJs). I tried it and it works! And the price is right, too, at US$199 (introductory) plus S&H.
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Discusses the difference between Yagi antennas, log periodic antennas, and phased array antennas. Also, I’ve picked up a sponsor, JLC Printed Circuit Boards, www.jlcpcb.com. This is the first time I’ve had a company sponsorship! Thanks to my wife, Loretta, KBØVWW, for reading the short advertising copy.
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The Radioddity GD-77 is their 2nd Generation DMR Tier 2 radio and it looks like they’ve done a fine job. It’s a solid, useful radio, and I recommend it. If you’d like to purchase it and support Ham Radio Answers at the same time, use this Amazon link: http://amzn.to/2gmh6dq.
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Photos by Larry Braden, W7LEV, put to music by Dave Casler.
Music: Bama Country – Country by Kevin MacLeod is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/…)
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Using CHIRP as our guide, let’s look at all the different stuff you need to understand before you set up your VHF/UHF handheld or mobile. We look at frequencies and offsets, CTCSS tones, simplex vs duplex, and much more. Thanks to Joy McLemore Rabins for the question that led to the video.
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This week’s video takes a close look at the MFJ-9232 QRP loop antenna. Given sizes of components and all, it is rated to handle no more than 25 watts. It can be used both indoors and out. This is a great little adjunct to those who want to play with (er…I mean “study”) loop antennas.
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