SolderSmoke Daily News -- Ham Radio Blog

It is truly a thing of beauty.   I really like that variable capacitor.  (Where did that come from?  How can I get one?)    Charlie's ca...

ZL2BMI Transceiver Layout (not full size here!)  Continuing our search for information the Cuban "Jaguey" DSB rig, Trevor Woods po...

Very cool that SPRAT had a Double Sideband (DSB)  transmitter article in its current issue (#191 Summer 2022). The author is DSB guru Eric S...

  Forbes has an interesting article that may help explain the poor Cycle 25 propagation that were talking about in SolderSmoke podcast #238:...

  Thanks to Thomas K4SWL of the SWLing Post for alerting us to this gem.  Listen to Sarah Johnston's program describing the origins and...

There is so much important SSB history in this video from Bob Nichols, W9RAN.  I liked all of it,  but the on-the-air recording of a 1961 tr...

Congratulations to Charlie Morris ZL2CTM for his first contact with his Simple SSB rig.   There are so many cool things in Charlie's vid...

From a post on on "ZL Amateur Radio & Friends,"  in response to a complaint about the lack of activity (with apologies to Paul...

Eric Guth 4Z1UG had a really nice interview with our friend Charlie Morris ZL2CTM.  Charlie shared with Eric a lot of wisdom about how t...

Charlie Morris ZL2CTM is working on portable (tramping) transceivers. Check out his amazing and innovative enclosures and circuit boards...

WE ARE WORKING TO IMPROVE THE AUDIO QUALITY.  IN THE FIRST RELEASE OF THIS PODCAST SOME OF THE AUDIO WAS KIND OF MUFFLED.  I TRIED TO...

Wow, Charlie has a lot of very cool ideas in this initial video.   Some suggestions:  -- With the IRF-510 in the final, beef up the heat...

Hugh ZL1UEM has come up with a very creative way to take maximum advantage of the small size of the Si5351 board, the Arduino, and...

So many great Double Sideband projects come from Down Under.  There are the various versions of the famed ZL2BMI rig.   And Peter Parke...

I'm making slow but steady progress on this one.  The origin of the project was the beautiful National HRO dial and gearbox that Arman...

Dave AA7EE has a very cool blog post on his version of the famed ZL2BMI DSB transceiver (seen above).  As usual, Dave puts most of us to ...

The day is off to a good start here at SolderSmoke HQ, with Radio New Zealand booming in on my homebrew Mate for the Mighty Midget receive...

John:  For the last couple of mornings you have been coming in quite strong on 40 meters around dawn here.    Attached is a short video...

https://www.kickstarter.com/projects/1575992013/kiwisdr-beaglebone-software-defined-radio-sdr-with?ref=video

Mark K6HX pointed me to very interesting Hackaday article on Frank PA3CNO's Sputnik transmitter replica.  As blog readers will rec...