Well, we're the Knights, right? So we should have a few wizards. Eddie, G3ZJO, should certainly be among those so honored. Above you can see his "G Beacon" MEPT transmitter. He uses two 555 chips to generate the G letter in Morse code. The longer chip on the bottom is (I think) the RF part of the transmitter. Ingenious. I also like his selection of frequency: 10140073 Hz. FB.
Eddie has a lot of other tricks up his sleeve, including the use of a Voltage Controlled Variable Oscillator driven by a PIC chip for a very simple WSPR transmitter.
These and other inventions can be seen on Eddie's YouTube page:
http://www.youtube.com/user/g3zjo (most seem to be done without audio).
Also check out his QRSS Beacon web page:
http://www.g3zjo.talktalk.net/qrss.htm
Thanks Eddie
FS: ART-13
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Tested a few years ago at K3HVG's QTH and it worked fine! Unused since
then.
Pickup Only. Sold as is. $350 OBO
Can deliver to the York PA Hamfest on ...
2 hours ago
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