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Ham College episode 81 is now available for download.

Extra Class Exam Questions – Part 19.
E4E Noise suppression and interference: Noise suppression and interference: system noise, electrical appliance noise, line noise, locating noise sources, DSP noise reduction, noise blankers, grounding for signals, common mode currents.
1:10:53

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George Thomas, W5JDX, is co-host of AmateurLogic.TV, an original amateur radio video program hosted by George Thomas (W5JDX), Tommy Martin (N5ZNO), Peter Berrett (VK3PB), and Emile Diodene (KE5QKR). Contact him at [email protected].

Follow up video for the MFJ Crystal Radio kit from AmateurLogic Shorts 13. George talks a little about crystal radios, tests the set and makes some mods.
You can find the kit here:
https://mfjenterprises.com/products/vec-121k?_pos=1&_sid=f9e4f44b2&_ss=r

Please Subscribe and click the Like and Share buttons if you enjoy our content.
Note AmateurLogic Shorts are only available on YouTube.

George Thomas, W5JDX, is co-host of AmateurLogic.TV, an original amateur radio video program hosted by George Thomas (W5JDX), Tommy Martin (N5ZNO), Peter Berrett (VK3PB), and Emile Diodene (KE5QKR). Contact him at [email protected].

This week’s AmateurLogic Short is a W5JDX Classic. Building the MFJ/Vectronics VEC-121K Crystal Radio kit.

You can find the kit here:
https://mfjenterprises.com/products/vec-121k?_pos=1&_sid=f9e4f44b2&_ss=r

Please Subscribe and click the Like and Share buttons if you enjoy our content.
Note AmateurLogic Shorts are only available on YouTube.

George Thomas, W5JDX, is co-host of AmateurLogic.TV, an original amateur radio video program hosted by George Thomas (W5JDX), Tommy Martin (N5ZNO), Peter Berrett (VK3PB), and Emile Diodene (KE5QKR). Contact him at [email protected].

Emile covers Artemis and SigIDWiki. Signal hunter software and useful aids for radio listeners.
https://aresvalley.com/
https://www.sigidwiki.com/wiki/Signal_Identification_Guide
https://aresvalley.com/community/

Please Subscribe and click the Like and Share buttons if you enjoy our content.
Note AmateurLogic Shorts are only available on YouTube.

George Thomas, W5JDX, is co-host of AmateurLogic.TV, an original amateur radio video program hosted by George Thomas (W5JDX), Tommy Martin (N5ZNO), Peter Berrett (VK3PB), and Emile Diodene (KE5QKR). Contact him at [email protected].

Now you can Program Raspberry Pi Pico with the Arduino IDE. Learn How.

Please Subscribe and click the Like and Share buttons if you enjoy our content.
Note AmateurLogic Shorts are only available on YouTube.

George Thomas, W5JDX, is co-host of AmateurLogic.TV, an original amateur radio video program hosted by George Thomas (W5JDX), Tommy Martin (N5ZNO), Peter Berrett (VK3PB), and Emile Diodene (KE5QKR). Contact him at [email protected].

It's time once again for The Weekender. This is our bi-weekly departure into the world of amateur radio contests, open source conventions, special events, listener challenges, hedonism and just plain fun. Thanks for listening and, if you happen to get a chance, feel free to call us or e-mail and send us some feedback. Tell us how we're doing. We'd love to hear from you.

73 de The LHS Crew

Russ Woodman, K5TUX, co-hosts the Linux in the Ham Shack podcast which is available for download in both MP3 and OGG audio format. Contact him at [email protected].

 

Web SDRs are nothing new to shortwave listeners or amateur radios op's alike. Internet SDR's provide a portal for many to access a wide variety of listening pleasures. No longer does one need a shortwave receiver to access the air waves.  I was shocked to learn how many countries are still broadcasting on shortwave. If Shortwave is not your cup of tea, many Web SDR's offer a very wide frequency spectrum for most, if not all, interests. As for me, I like to tune into the ham bands to see what action is on the airwaves.  Also, while reading blogs, writing a post or just surfing the net I tune in some nice jazz piano tunes via Web SDR's. A few months ago I stumbled across a Web SDR that for me is a real gem! NA5B WebSDR receiver system   Among the great shortwave and amateur bands offered NA5B also has a 100 mW  medium wave radio station (FCC part 15 permits this). I found GREAT jazz piano listening, so it's my go-to place when I am doing what I am doing right now, writing a post. (1700 kHz) Last evening I shared this gem with my wife Julie, and she had a listen. (she too is a big fan of jazz piano) Right away she told me of some now and then static and hiss and asking why I just don't look up jazz piano music on the web, and it would be without the static and hiss. I informed her it adds to the shortwave listening experience. 

There are many Web SDR's on the internet, but my go-to place is websdr.org. The site has a vast bibliography of Web SDR's, and it offers band and region filters. The listed SDR site offers location, antenna and frequency information, and you have a handy link to their SDR site. One thing I have tried calling up a WebSDR in a certain country from there venture over to a ham band in the CW portion, I then transmit and find out if I can hear my signal. There is a bit of a delay, but it's cool when you hear your own signal. 

If you haven't already discovered the world of WebSDR give it a go and if you are a veteran please share what you do and where you listen.  

Having enjoyable music in the background helps me concentrate and feel relaxed, thank you NA5B for your great 100mW jazz broadcast. 

Mike Weir, VE9KK, is a regular contributor to AmateurRadio.com and writes from New Brunswick, Canada. Contact him at [email protected].