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Wednesday, May 8, 2013
Drone Dudes
Our book: "SolderSmoke -- Global Adventures in Wireless Electronics" http://soldersmoke.com/book.htm Our coffee mugs, T-Shirts, bumper stickers: http://www.cafepress.com/SolderSmoke Our Book Store: http://astore.amazon.com/contracross-20
Monday, May 6, 2013
Homebrew Adventures with JT65
My six dollar DDS board hasn't arrived yet, so this weekend I worked on the re-build of the 30 meter Direct Conversion/DSB transmitter that I built in Rome (originally for WSPR use). I was hoping to use this rig to make at least a few PSK-31 contacts. But I started seeing these strange looking sigs in the waterfall. I found out they are JT65 (JT for Joe Taylor). So I downloaded the program JT65-HF. I got the receiver going very quickly (it is a 40675 dual gate MOSFET followed by the audio amplifier out of Roger Hayward's Ugly Weekender RX). The transmitter is just a two diode singly balanced modulator followed by the RF chain from Peter Parker's Beach 40 Rig. QSOs seem imminent.
Our book: "SolderSmoke -- Global Adventures in Wireless Electronics" http://soldersmoke.com/book.htm Our coffee mugs, T-Shirts, bumper stickers: http://www.cafepress.com/SolderSmoke Our Book Store: http://astore.amazon.com/contracross-20
Labels:
direct conversion,
DSB,
JT65,
K1JT,
Parker--Peter,
WSPR
Saturday, May 4, 2013
Now That's A Radio Shack! JH0JDV
I was at the workbench this morning, working on a 30 meter DC/DSB transceiver. I had the Barebones superhet tuned to white noise on 17 meters. Then I heard a strong CQ that sounded like DX. It was Ely, JH0JDV. He was the only signal on the band. We had a very nice contact, no problems at all. I was running my normal 10 watts to a dipole. Afterwards I Googled him. Wow, he has a REAL radio shack! FB Ely!
Our book: "SolderSmoke -- Global Adventures in Wireless Electronics" http://soldersmoke.com/book.htm Our coffee mugs, T-Shirts, bumper stickers: http://www.cafepress.com/SolderSmoke Our Book Store: http://astore.amazon.com/contracross-20
Labels:
Japan
Friday, May 3, 2013
Making the World's Smallest Movie
Our book: "SolderSmoke -- Global Adventures in Wireless Electronics" http://soldersmoke.com/book.htm Our coffee mugs, T-Shirts, bumper stickers: http://www.cafepress.com/SolderSmoke Our Book Store: http://astore.amazon.com/contracross-20
Thursday, May 2, 2013
WA0RBR's Fun-Rig
Last night I called CQ on 20 CW (with my Arduino keying the homebrew transmitter!) and was answered by Mark, WA0RBR. I Googled the call and found that Mark is quite a homebrewer. He wrote a nice series of articles for 73 magazine in the early 80's. Here they are:
http://mikeyancey.com/73mag/listauthor.php?Author=WA0RBR
Our book: "SolderSmoke -- Global Adventures in Wireless Electronics" http://soldersmoke.com/book.htm Our coffee mugs, T-Shirts, bumper stickers: http://www.cafepress.com/SolderSmoke Our Book Store: http://astore.amazon.com/contracross-20
http://mikeyancey.com/73mag/listauthor.php?Author=WA0RBR
Our book: "SolderSmoke -- Global Adventures in Wireless Electronics" http://soldersmoke.com/book.htm Our coffee mugs, T-Shirts, bumper stickers: http://www.cafepress.com/SolderSmoke Our Book Store: http://astore.amazon.com/contracross-20
Wednesday, May 1, 2013
Save 20% on "Hollow-State Design" and "SolderSmoke"!
http://www.lulu.com/shop/grayson-evans/hollow-state-design/paperback/product-20987562.html
http://www.lulu.com/spotlight/soldersmoke
Our book: "SolderSmoke -- Global Adventures in Wireless Electronics" http://soldersmoke.com/book.htm Our coffee mugs, T-Shirts, bumper stickers: http://www.cafepress.com/SolderSmoke Our Book Store: http://astore.amazon.com/contracross-20
"The Economist" on Raspberry Pi
http://www.economist.com/node/21576780
Our book: "SolderSmoke -- Global Adventures in Wireless Electronics" http://soldersmoke.com/book.htm Our coffee mugs, T-Shirts, bumper stickers: http://www.cafepress.com/SolderSmoke Our Book Store: http://astore.amazon.com/contracross-20
Our book: "SolderSmoke -- Global Adventures in Wireless Electronics" http://soldersmoke.com/book.htm Our coffee mugs, T-Shirts, bumper stickers: http://www.cafepress.com/SolderSmoke Our Book Store: http://astore.amazon.com/contracross-20
Labels:
minimalist computing
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