Category Archives: Video

Cleaning a Heathkit Coax Switch with Deoxit (#60)

Posted on April 25, 2017 by

My old, long-dormant Heathkit coax switch will be part of the setup I use to test two loop antennas: The Chameleon P-loop and the MFJ-1788. This video shows everything coming apart, how to use the Deoxit, and how it all … Continue reading →

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Unboxing the MFJ-1788 Loop Antenna (#59)

Posted on April 20, 2017 by

I’m always on the lookout for antennas that might help those with deed restrictions or living in apartments. The MFJ-1788 is a small 3-foot-diameter HF loop tha covers 40-15 meters and will handle 100 watts. This unboxing video shows what … Continue reading →

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BITX-40 TX Audio Response Tests (#58)

Posted on April 18, 2017 by

Using the function (signal) generator put together in episode #57, we test the transmit audio response of the BITX-40 to discover that rolloff occurs around 2 kHz. Watch to see how it all works! You can see a list of … Continue reading →

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Unpacking and Testing the XR2206 Function Generator (#57)

Posted on April 18, 2017 by

Let’s unpack and then test a remarkably inexpensive kit for a sine/triangle/square-wave 1Hz to 1MHz kit. Dirt cheap and works. This video covers only unboxing and then testing. For construction, see Randy K7AGE’s video at https://youtu.be/EFRVeoh20Bc. You can see a … Continue reading →

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DeoxIT demo on an LED flashlight (AD #56)

Posted on April 18, 2017 by

CAIG Products, which makes DeoxIT, asked me if I’d like to try some. Soon it was at my door (to be clear, “mailed” is used in the generic sense–it did NOT come via USPS). The demo makes an old LED … Continue reading →

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Experimental video: FARN plus channel updates (AD #55)

Posted on April 18, 2017 by

Okay, so this is an experiment. It’s April 1st, hence time for a Fake Amateur Radio News video. Also, I wanted to pass on some info about my channel, so I added “infomercials.” It seemed more fun than a “state … Continue reading →

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Assembling the Chameleon Loop Antenna: AD #54

Posted on April 18, 2017 by

This is the Chameleon CHA P-LOOP 2.0. This video shows that it indeed fits in the canvas bag, and also shows assembly in an unhurried way so I can give tips and helps. You can see a list of Ask … Continue reading →

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Unboxing of Chameleon CHA P-LOOP 2.0 HF Loop Antenna

Posted on March 27, 2017 by

This loop might be the solution for the many hams who’ve written me asking about antennas for covenant-restricted communities and high-rises. I unbox the Chamelion CHA P-LOOP 2.0 HF loop antenna. You can see a list of Ask Dave videos … Continue reading →

Posted in Ham Radio blog entries, Video | 1 Comment

Solar Power for your Ham Station AD #52

Posted on March 25, 2017 by

Can you power your station from the sun? Absolutely! This video explains solar power from the panels and batteries to charge controllers and sizing. You can see a list of Ask Dave videos by clicking here. You can ask a … Continue reading →

Posted in Ask Dave, Ham Radio blog entries, Video | 3 Comments

A Simple Look At a Basic Amplifier, AD #51

Posted on March 22, 2017 by

One of the basic building blocks of radio is the amplifier. Let’s look at the theory behind a simple transistor amp, breadboard it, and test it! You can see a list of Ask Dave videos by clicking here. You can … Continue reading →

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