Chitika: Netherlands

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It's been a while since I checked in with this site. They have made a lot of improvements. It is very impressive. I had trouble with it using Internet Explorer, but it worked right away using the Google Chrome browser. Play with it a bit. Zoom in on 40 meters. Listen to the LSB contacts. Very nice.

http://websdr.ewi.utwente.nl:8901/

Our book: "SolderSmoke -- Global Adventures in Wireless Electronics" http://soldersmoke.com/book.htmOur coffee mugs, T-Shirts, bumper stickers: http://www.cafepress.com/SolderSmokeOur Book Store: http://astore.amazon.com/contracross-20

Bob LeDoux sent us a link to a really amazing site about the Hellschreiber system. The site is filled with great videos, pictures, and animations like the one above. Lots of radio history too. Check it out:

http://www.nonstopsystems.com/radio/hellschreiber-function-operation.htm
This is all the work of F. Dorenberg, N4SPP. Thanks OM!

Bob writes: I'm working on a microcontroller based reader for
this mode. For old fossils, like us, this mode looks perfect. It can
be sent using simple CW equipment and it appears to be a great
replacement for those who are tiring of Morse code.
Its perfect for Knack victims. We can even build mechanical printers. Thanks Bob!

Our book: "SolderSmoke -- Global Adventures in Wireless Electronics" http://soldersmoke.com/book.htmOur coffee mugs, T-Shirts, bumper stickers: http://www.cafepress.com/SolderSmokeOur Book Store: http://astore.amazon.com/contracross-20

Edwin did a beautiful job on his BITX. This is an excellent example of stage-by-stage construction.
This is his THIRD BITX. On the second one he got all the parts from an old television and a washing machine. That's the true BITX spirit!
I want an S Meter!
There is more information on his blog:
http://pa1ed.blogspot.nl/

Our book: "SolderSmoke -- Global Adventures in Wireless Electronics" http://soldersmoke.com/book.htmOur coffee mugs, T-Shirts, bumper stickers: http://www.cafepress.com/SolderSmokeOur Book Store: http://astore.amazon.com/contracross-20

There is a very nice article on the MAKE blog this morning:
http://blog.makezine.com/2013/06/06/an-early-maker-story-from-holland/

Our book: "SolderSmoke -- Global Adventures in Wireless Electronics" http://soldersmoke.com/book.htmOur coffee mugs, T-Shirts, bumper stickers: http://www.cafepress.com/SolderSmokeOur Book Store: http://astore.amazon.com/contracross-20

Chitika

All of the Shortwave Spectrum LIVE on Web Waterfall Display

Electro-mechanical Heaven.... with Hell (Hellschreiber)

A Beautiful BITX20 from PA1ED

Dutch Knack During WWII

AHMED HASSAN MOHAMMED

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