LA3ZA Radio and Electronics

Photo @LA3ZA   Here's an adapter that emulates both a single-lever paddle mode and the  ultimatic mode. It is meant to go between a...

The audio in particular should make it clear how busy the frequencies around 433.92 MHz are: Data recorded from an RTL-SDR USB...

Yesterday's post entitled "Car keys in the 70 cm band" showed a very busy band around 433.92 MHz with up to 10 simultaneous tr...

The 70 cm amateur band covers from 432 to 438 MHz  in Norway  and radio amateurs have primary status. Secondary users are among others remo...

Tonight I sat down to fiddle with the macros of my Elecraft K3. As I already use M1-M4 for CW memories, I only had the PF1 and PF2 butto...

The Model One has been a huge success. But in many ways it is a daring retro design judging from all the features that are missing in th...

How do the cheap Baofeng handhelds compare? I have had the Baofeng UV-5R since I bought it from the  409shop  in April 2012, but recently ...

There aren't that many modifications that you can do to the Elecraft K3. This is very different from the K2 as in my list I now have 138...