Pretty cool. I would encourage people building these to get an Amateur Radio License. https://www.arrl.org/ham-radio-licenses

It's pretty easy. Comparable to the written part of the DMV drivers test. It makes sure everyone knows the rules of the road.

There are a few options:

Technician Class License - allows you to legally transmit on the 10 meter band. 

These are pretty easy. 35 multiple choice questions. Lots of online resources for learning what you need to know.

General Class License - allows you to use the longer wavelength bands. 

Check http://www.arrl.org/getting-licensed for more on how to get a license.

Steve

On Fri, Feb 28, 2025 at 1:16 PM Jake Watters via sudo-discuss <sudo-discuss@sudoroom.org> wrote:

Yesterday a bunch of people got together to build up their kits of 5 watt digital radio transceivers!  

These are HF ham radio transmitter/recievers that connect to a computer over USB, and allow communication on digital modes on what we call low frequencies these days (but they're also called Shortwave even though they're now the longest waves we use).  Technically one is supposed to have a ham radio license to transmit on these frequencies, although anyone is allowed to listen in.

This is the kit they were building:

https://qrp-labs.com/qdx.html

We used the video microscope and all six soldering stations!  It was the most soldering happening at the same time in sudoroom in a long time.  The event will happen again on Wednesday.

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-steve

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