Author Archives: David Casler

Review of Radioddity GD-77 DMR Tier 2 Handheld (#93)

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 … Continue reading

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MARC Field Day 2017 Photos by Larry Braden W7LEV

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/…) You can see a list of Ask Dave videos by clicking here. … Continue reading

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Stuff You Need to Know to Set Up Your VHF/UHF Rig (#91)

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 … Continue reading

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Review of MFJ -9232 QRP Mini Loop Tuner (AD#90)

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 … Continue reading

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Review of MFJ-1984MP End-Fed Multi-band Antenna (# 89)

This turned out to be one weird antenna. It’s an end-fed multi-band antenna that’s best used in a portable environment. I had to get MFJ’s help to figure out what was going on; I provide all this info in the … Continue reading

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MFJ-6120 Zepp and MFJ-6220 Collinear Review and Test (# 87)

These are both 20 meter single band wire antennas (also available for other bands). This video reviews the “how it works” followed by tests for each, and explains how I got the Zepp to work. I particularly like the collinear … Continue reading

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Making and Using a Simple 40-m Dipole (#86)

I’m often asked how to make a dipole. In this video I use materials on hand to build a 40-meter amateur radio dipole. I hung it on the antenna test rig I built this past week, and it works great! … Continue reading

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Setting up to Test Wire Antennas (#AD 85)

I have several wire antennas ready to test, but needed a couple masts. This video describes how I used chain-link-fence top rail together with pulleys and guy rope to set up the “test range.” This is an easy technique you … Continue reading

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Four MFJ wire antennas: Unboxing (#84)

MFJ sent me four wire antennas for evaluation. They are the MFJ-1984MP, MFJ-9232, MFJ-6220, and MFJ-6120. This short (a record for me!) video is the unboxing. Scroll down for more You can see a list of Ask Dave videos by … Continue reading

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The Coax Connection: Interview with Ray Nelson, N1MPD (#AD 83)

Here’s a new approach. For the first time on an Ask Dave video, I’m focusing on an interview! In this case it’s with Ray Nelson, N1MPD, who with his wife own USA Coax (www.usacoax.com, or www.coaxusa.com, or mpddigital). Ray’s an … Continue reading

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