Category Archives: Video

BITX-40 Fix for Galloping VFO

Posted on March 17, 2017 by

The BITX-40 Raduino-based VFO has a horrible habit of galloping up or down the band at the most inconvenient times. This simple mod fixes the problem. The schematic showing the original circuit and the modified circuit is shown below the … Continue reading →

Posted in Ham Radio blog entries, Video | 1 Comment

Review of BITX-40 SSB QRP Rig Operations

Posted on March 15, 2017 by

Previous videos explored aspects of building the BITX-40 SSB QRP rig. This video explores the operations aspect. Fun little rig! Ashhar Farhan photo courtesy Nagasai Nath. You can see a list of Ask Dave videos by clicking here. You can … Continue reading →

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Amateur Extra Videos No Longer Available on Thumb Drive

Posted on March 8, 2017 by dcasler

Amateur Extra videos are no longer available on thumb drives. Go to https://learn.arrl.org/. You will find them there in the On The Air section. Note that you must log in with your ARRL login username and password, so you must … Continue reading →

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Ameritron ALS-500M Amp and MFJ-4275MV Power Supply

Posted on March 6, 2017 by

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 →

Posted in Ham Radio blog entries, Video | 2 Comments

BITX-40 Construction Review: KEØOG Kwickie

Posted on February 27, 2017 by

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 →

Posted in Ham Radio blog entries, Video | 2 Comments

Assembling the BITX-40: KE0OG Kwickie

Posted on February 22, 2017 by

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 →

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DX and the Radio Amateur: Ask Dave #47

Posted on February 17, 2017 by

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 →

Posted in Ask Dave, Ham Radio blog entries, Video | 1 Comment

BITX Strategy–How to Assemble it

Posted on February 12, 2017 by

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 →

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Unboxing the BITX40 SSB QRP 40-Meter Rig

Posted on February 7, 2017 by

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 →

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From Data Modems to Sound Cards: AD #46

Posted on February 2, 2017 by

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 →

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