SolderSmoke Daily News

Thanks to Thomas K4SWL for alerting us to this.  The 25 minute film is well-done, using modern  film techniques and editing. It is a bit app...

 -- This is really interesting technology.  Three cheers for Joe Taylor and colleagues.  This mode would obviously be very useful for fast, ...

Hi Bill A ham, well known to us, actually me, was very involved in the very first laser reflector experiment.  I was a new EE gradu...

https://www.nytimes.com/2020/08/15/science/moon-lasers-dust.html Thanks to Chuck KE5HPY for alerting us to this very interesting article. 

Well, we were talking about it on 40.   This just proves that there is more to 40 meter SSB than the never-ending quest for audio "br...

Bill:   I'll attach some pix of the feedhorn and LNA for you. The importance of circular  feeds is that as a linear wave pas...

Years ago I bought a Barebones Superhet from Dale Parfitt on E-bay.  Several years after that, having forgotten who I bought it from, I ...

Hack-A-Day ran a story on EME pioneer Zoltan Bay.  In the comments section someone posted this memorable video about a moonbounce statio...

The link below will take you to an amazing collection of QST articles describing the early days of EME or "moonbounce."  Very i...

In March 1944, Bay recommended using the radar for scientific experimentation, including the detection of radar waves bounced off the Moo...

I think the really cool thing about this is the "self echo."  Listen carefully when the operator in the video turns it over to t...

Bob, Kd4EBM, sent me some really good info on laser safety. Bottom line: For the time being anyway, Billy will be limited to the <5mw h...