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Friday, July 29, 2011
Amateur radio at PAR (W4OP)
http://www.parelectronics.com/par-amateur-radio.php.
That's a nice looking 2-B Dale! Please send us the serial number! Even more impressive is Dale's award-wining homebrew solid state version of the 2-B (on the far right). Visit his web site for more info (on his site you can hover your mouse above the pieces of gear for more info).
I'm proud to say that I have a piece of gear in my shack that was built by Dale Parfitt. The story is told in SolderSmoke The Book: I'd built my own version of Doug DeMaw's Barebones Superhet and had liked it a lot. When I saw another one (this one built on a FAR circuits board) for sale on e-bay, I bought it. It stayed on the shelf for a while. Years later when I started working on it, I turned to QRP-L for help and this fellow named Dale Parfitt came to my rescue. It was only after a long series of e-mail exchanges did we realize that the receiver we were discussing had been built (and sold to me) by... Dale Parfitt.
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
Wednesday, July 27, 2011
Walford Electronics' "QRP In the Country"
A raffle raised £200 for those suffering in East Africa; the main prize being a year’s subscription to PW kindly donated by Rob G3XFD which was won by Graham G4DPH. George G3RJV was asked to select a couple of displays that ‘appealed’ to him for two other prizes. The GQRP Club had kindly donated a special edition of Drew VK3XU’s latest project book which was also won by G4DPH for his PW Sprat project; a Walford Electronics Radlet CW TCVR kit went to Colin G3YHU for his valved superhet. A years subscription to BYLARA was won by SWL Mike Jones who is about to take his Foundation licence course.
After the event Tim G3PCJ said he was said delighted with the increased attendance and wished to thank everybody whose hard work had made the event so successful. He urged all Clubs within reasonable distance to plan their displays for next year! Watch the press for announcements of the date!
Tim Walford G3PCJ walfor@globalnet.co.uk
WALFORD ELECTRONICS www.users.globalnet.co.uk/~walfor
Proprietor Tim Walford BSc MIEE CEng G3PCJ
Tuesday, July 26, 2011
How Curiosity Will Land on Mars
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
Regens: A Complex Relationship; AA7EE's WBR
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
Saturday, July 23, 2011
The Dish
We talk about "The Dish" from time to time on SolderSmoke. That's the name of the movie about the role of this antenna in the reception of the TV signals for the Apollo 11 moon landing. This is -- without a doubt -- the best movie ever made about an antenna.
You can get the movie at the Gadgeteer Book Store:
http://astore.amazon.com/contracross-20?_encoding=UTF8&node=8
Check out "SolderSmoke -- Global Adventures in Wireless Electronics"
http://soldersmoke.com/book.htm
Friday, July 22, 2011
Steve "Snort Rosin" Smith: Silver-Tongued Devil! Dual-band "Vlad the Inhaler" RX
It occurred to me that with the installation of one little switch in the diode part of the circuit, we could turn this into a dual-band RX. Take a look here:
http://soldersmoke.blogspot.com/2010/03/polyakov-plus-dual-band-receiver-with.html
Check out "SolderSmoke -- Global Adventures in Wireless Electronics"
http://soldersmoke.com/book.htm
Wednesday, July 20, 2011
Doug Demaw and Vlad Polyakov
Check out "SolderSmoke -- Global Adventures in Wireless Electronics"
http://soldersmoke.com/book.htm
Tuesday, July 19, 2011
Royal Order of the Sputnik Clone Chasers
From the Chief Designer (AA1TJ):
Fellas,
I came across an online blurb for the recent book, Sputnik: The Shock of the Century, by Paul Dickson; a worthwhile read, judging from the introduction and first chapter.
http://www.sputnikbook.net/intro.php
"Someone brought out a shortwave radio, and soon a beeping noise filled the room. A Russian scientist, Anatoli Blagonravov, confirmed it was Sputnik. "That is the voice," he said dramatically. "I recognize it." John Townsend Jr., one of the scientists at the party, recalled watching Blagonravov: "I knew him quite well, and I could tell that he was a little surprised and quite proud. My reaction was 'Damn!'"
And so an abstraction now had a voice. It also had a name - Sputnik.
Many of those at the party adjourned to the Soviet Embassy's rooftop, attempting to view Sputnik with the naked eye. Several of the American scientists drifted over to the American IGY headquarters in Washington, where they began speculating on what impact the satellite would have. They feared that the American people would be disappointed.
It also dawned on them that they had better start tracking the satellite's orbit. They got in touch with the American Radio Relay League in West Hartford, Connecticut, asking its 70,000 members-all "ham" radio operators-to lend a hand and help track the Sputnik. In less than twenty-four hours, reports on the satellite were coming back to the National Science Foundation, where a temporary control room had been established. Eventually, these hams and other amateur and professional trackers would consider themselves part of a great international fellowship known as ROOSCH, or the Royal Order of Sputnik Chasers."
That's right guys...ROOSCH...the Royal Order of Sputnik Chasers. And to think that fifty four years later a second great international fellowship would rise from the ashes...ROOSCCH, or the Royal Order of Sputnik Clone Chasers! ;o)
(BTW, October 4, 1957 is an important date in American history for a second reason. On that evening the first episode of Leave it to Beaver made its debut.)
I thought we should also at this point remember the intrepid lads of the Kettering Group, pictured above. (Some of those dudes look like they would have been right at home in "Leave it to Beaver.") For more info on their amazing Sputnik adventures go here:
http://www.svengrahn.pp.se/trackind/getstart/oldcyts.htm
and here
http://www.svengrahn.pp.se/trackind/trackin1.htm#KEttrack
Check out "SolderSmoke -- Global Adventures in Wireless Electronics"
http://soldersmoke.com/book.htm
Monday, July 18, 2011
Sputnik QSL from the Soviet IGY Committee
Yesterday Billy and I were at the Smithsonian Air and Space Museum's Dulles Airport center. (We volunteer to take visiting relatives to the airport IF we get to go to the Smithsonian afterwards.) We checked for Sputniks. Nyet. I think they have one on display in the main Air and Space building.
I was thinking that listening to a signal from a spacecraft should be part of the Sputnik event. The packet 2-meter signals from the International Space Station are probably the easiest to receive these days.
Check out "SolderSmoke -- Global Adventures in Wireless Electronics"http://soldersmoke.com/book.htm
Saturday, July 16, 2011
Australian Antarctic Antenna Archeology
I caught half of a report on “The 7:30 Report” on Australia’s public broadcaster ABC TV. Not knowing the full Mawson expedition story, I found this interesting. A conservation group is working to conserve the old halfway point radio repeater mast and whatever other bits have survived on Macquarie Island.
The links are to the transcript and the actual report video.
Story Transcript:
http://www.abc.net.au/7.30/content/2011/s3268909.htm
Vodcast videos. They are about 26MB in size. Theyr’e both the same video. Just two different formats.
http://mpegmedia.abc.net.au/730report/video/podcast/r799754_7027600.m4v
http://mpegmedia.abc.net.au/730report/video/podcast/r799754_7027588.wmv
John Dowdell
Yet to do the test
Sydney Australia