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Category Archives: Video
Folks have asked for a way to watch the Extra videos offline. So, now they’re available at full resolution on a 64 GB “thumb drive” for $49.99, postpaid in the USA. You can see a list of Ask Dave videos … Continue reading
Dave gets an amp! I’ve mentioned it incidentally, but here’s a whole video on the HF amp and its power supply. Even though it’s many years old, it’s performing reliably and consistently. You can see a list of Ask Dave … Continue reading
In this fourth video on the latest BITX-40, which includes the Raduino VFO, I review the construction process–how to put the parts and pieces together. You can see a list of Ask Dave videos by clicking here. You can ask … Continue reading
This is the third videos about my BITX-40 kit, a QRP, SSB, 10-watt, kit from hfsigs.com. The basic kit is only $59, and comes with assembled circuit boards. This video covers connecting all the other components. Many thanks to K7AGE … Continue reading
What’s DX? How does it work? Is it something you want to do? Give it a try! This video tells how. You can see a list of Ask Dave videos by clicking here. You can ask a question by clicking … Continue reading
The previous video showed the unboxing. This video shows how I plan to mount it in the box it came in. After testing, I’ll find a more permanent box. You can see a list of Ask Dave videos by clicking … Continue reading
I learned about the BitX-40 from Randy, K7AGE’s unboxing video and immediately placed an order. It arrived today a few weeks after I placed the order (it’s a long way from India!). I’ll put it together in a future video. … Continue reading
We use sound cards for lots of digital modems. Why? This episode explores the history behind creating the tones we put on the air. You can see a list of Ask Dave videos by clicking here. You can ask a … Continue reading
Where do radio sine waves come from? From oscillators! This video delves into a simple audio phase-shift oscillator to see how they work. Included is a look at a breadboarded oscillator on an oscilloscope. You can see a list of … Continue reading
What are Anderson Powerpole connectors? They’re really popular for 12VDC power connections. This video explains how they work and shows how to mount the connectors properly for amateur radio. You can see a list of Ask Dave videos by clicking … Continue reading