Wednesday, February 19, 2025

SolderSmoke Podcast #257 -- Wrap up of the SolderSmoke Direct Conversion Receiver Challenge

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SolderSmoke Podcast #257 is available.  Video version:  https://www.youtube.com/watch?v=xOoZiHbC4Ag Audio version: https://soldersmoke.com/s...
3 comments:

Falcon 9 Rocket Flies Over the Dominican Republic -- February 18, 2025

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Just 30 minutes prior to this, my wife Elisa happened to see on Instagram a map showing the flight path of the Falcon 9. We didn't know ...
Monday, February 17, 2025

Direct Conversion Receivers -- Some Amateur Radio History

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Click on each of the 6 pages below for a clearer view, or on the N5DUX  link at the bottom for a .pdf https://www.n5dux.com/ham/files/pdf/Di...
5 comments:
Sunday, February 16, 2025

Why Should We Build Analog Gear When the World has Gone Digital?

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Our friend Todd (Vasily) had recently been thinking about this on his excellent Popcorn Electronics blog:  https://qrp-popcorn.blogspot.com/...
3 comments:
Saturday, February 15, 2025

Heard on the Old Military Radio Net: W4SVA

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  So there I was, early Saturday morning (earlier here -- we are one hour ahead of the East Coast) listening -- as I do -- to the Old Milita...
1 comment:
Wednesday, February 12, 2025

SolderSmoke Direct Conversion Receiver Challenge -- Bonus Video -- Using an Oscilloscope to Test Your Receiver

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  SolderSmoke Challenge – Bonus Episode – Using your oscilloscope to test your DCR   New homebrew radio builders often struggle with test an...
2 comments:
Sunday, February 9, 2025

Light Beam Communication from the Dominican Republic?

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Mike WN2A sent me the PIC board to generate the CW for my "Lil Slugger" Doug DeMaw transmitter.  Then I started wondering about ha...
4 comments:
Saturday, February 8, 2025

SolderSmoke Challenge -- Direct-Conversion Receiver Video #5 -- Building the Audio Frequency Amplifier

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  SolderSmoke Challenge – Direct Conversion Receiver – the Audio Amplifier Build and Receiver Demonstration   In this episode Dean, KK4DAS w...
2 comments:
Thursday, February 6, 2025

SolderSmoke Direct Conversion Receiver Challenge: A Short Video from Dean about the Virtues of Building the AF Amplifier ONE STAGE AT A TIME

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  Dean will soon post his longer video on how to build the fourth and final board of the SolderSmoke Direct Conversion Challenge receiver, b...
1 comment:
Tuesday, February 4, 2025

Mr. Carlson Restores a BC-348 -- But 40 Meters Sounds Very Weak. Why?

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Mr. Carlson mentions that he is a ham radio AMer.  He is also on SSB, but AM is, he says, his preferred mode.  FB.  I got a real chuckle abo...
4 comments:
Saturday, February 1, 2025

SolderSmoke Challenge – Direct Conversion Receiver – the Band Pass Filter

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  The SolderSmoke DCR challenge is going well.  Our Discord server is bustling with activity and we are impressed that several intrepid home...
1 comment:

USAF Video: Why SSB is Superior to Ordinary AM

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OK, the title of this blog post has an element of click bait in it.  Just this morning I was listening to the Old Military Radio Net on 3885...
6 comments: