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Wednesday, November 25, 2009

Harry Gets His Own Domain

You know a guy has made a real impact when all you need is his first name. Harry, SM0VPO aka G4VVJ is in that category. His web site has been a source of circuits, ideas, and inspiration for many years now. For his 2009 birthday, he got his own domain. Visit the site: http://www.sm0vpo.com

Tuesday, November 24, 2009

On Top Band at Age 12 and 1/4!

Gil sent me a link to the wonderful site of W8JI. The OM got his start by removing plates from the tuning cap of an All-American 5 broadcast receiver. Heart warming stuff for knack victims. Be sure to visit his Boatanchor page -- check out his DX-60. Doesn't that rig look a little bit TOO good? Are those regulation knobs? Or have they been juiced up a bit? (Mine don't sparkle quite so much.)
http://www.w8ji.com/160_history.htm

Sunday, November 22, 2009

"Industrial Revolution 2" Tinkering Gets Respectable

Bruce, KK0S, alerted me to this wonderful article in the Wall Street Journal. I liked the line about the "hackerspaces" being "like gyms, but with people milling iron, not pumping it."

Check it out:
http://online.wsj.com/article/SB125798004542744219.html

Saturday, November 21, 2009

WSPRing with Ubuntu

Wow, the radio gods are are really helping me lately! Soon after receiving my new Ubuntu laptop, Joe Taylor, K1JT, released the first Linux version of his amazing WSPR program. And he wrote it for the version of Linux that I am using: Ubuntu!
Not only that, the new version includes a feature that I was most in need of: the capability of handling compound call signs. No longer am I signing on from Rome as N2CQR -- now the all-important I0/ is also displayed (see the above map). I had very little trouble getting Ubuntu WSPR running on my machine (and as you all know, I am a real Linux klutz). The new program also allows for periodic CW identification. Very cool. Here something I noticed: WSPR requires the computer clock to be accurately calibrated. With my old Windows machine I had to periodically tweak the clock using an on-line GMT clock. But when I went to check the accuracy of the clock in the Ubuntu machine, it was EXACTLY right. To the second. I wonder if Ubuntu Linux has a feature that automatically synchs the computer clock with GMT.
Here is what Joe says about the new software:
-----------------------------

WSPR 2.0 is now available for download from the WSJT Home Page, http://physics.princeton.edu/pulsar/K1JT/
Click on WSPR in the left margin, then on the appropriate WSPR 2.0 link for your operating system. Installable binary packages are provided for Windows and for recent Debian-based 32-bit Linux systems. A recommended Linux distribution is Ubuntu 9.04.

Version 2.0 of WSPR introduces a number of new program features, including the following:

- User-friendly setup screen with drop-down selection of audio devices and CAT parameters
- Support for compound callsigns
- Fine adjustment of fractional time for transmitting
- Optional CW identification
- Tools for frequency calibration and automated frequency corrections for your radio
- A Tune button
- Direct on-line access to the WSPR 2.0 User's guide, WSPRnet, and the WSJT Home Page

Full details are presented in the all-new User's Guide, which is a "must read" if you want to use the new features. The manual includes a Troubleshooting guide. Click http://physics.princeton.edu/pulsar/K1JT/WSPR_2.0_User.pdf to read the manual.

Three cheers for Joe Taylor!

Friday, November 20, 2009

Radio, Douglas MacArthur, and staying young at heart

Art, KG6ZWD, sent this along. General MacArthur kept this poem displayed above his desk in Manila, and frequently quoted from it during his time in Tokyo. The radio part comes near the end.

Youth

By Samuel Ullman

Youth is not a time of life; it is a state of mind; it is not a matter of rosy cheeks, red lips and supple knees; it is a matter of the will, a quality of the imagination, a vigor of the emotions; it is the freshness of the deep springs of life.

Youth means a temperamental predominance of courage over timidity of the appetite, for adventure over the love of ease. This often exists in a man of sixty more than a boy of twenty. Nobody grows old merely by a number of years. We grow old by deserting our ideals.

Years may wrinkle the skin, but to give up enthusiasm wrinkles the soul. Worry, fear, self-distrust bows the heart and turns the spirit back to dust.

Whether sixty or sixteen, there is in every human being’s heart the lure of wonder, the unfailing child-like appetite of what’s next, and the joy of the game of living. In the center of your heart and my heart there is a wireless station; so long as it receives messages of beauty, hope, cheer, courage and power from men and from the infinite, so long are you young.

When the aerials are down, and your spirit is covered with snows of cynicism and the ice of pessimism, then you are grown old, even at twenty, but as long as your aerials are up, to catch the waves of optimism, there is hope you may die young at eighty.

Thursday, November 19, 2009

An amazing radio history book - FREE!


Robert, WP4PQV, sent us some links to a treasure trove of U.S. Navy electronics publications that have been placed on-line. My initial perusal of the collection took me to History of Communications in the U.S. Navy by Capt. Howeth. Here is one gem from this amazing book:

Emperor Tiberius ruled Rome from the island of Capri for 10 years, around 37 A.D., transmitting his orders by means of the heliograph.
3 This indicates that the Romans, at this time, used some form of telegraphic code in the transmission of information.

Here is the link:
http://earlyradiohistory.us/1963hw.htm

The 1946 Navy Manual "Introduction to Radio Equipment" (and links to other books) can be found here:
http://hnsa.org/doc/radio/index.htm

Wednesday, November 18, 2009

"From Atoms to Amperes" by F.A. Wilson

From Atoms to Amperes by F. A. Wilson
Published in 1989, Bernard Babani Publishing LTD (London, The Grampians, Shepherds Bush Road, London, W6 7NF)

I love this book. Mine is now held together by duct tape and crazy glue. Doug, WB5TKI, reports spotting a copy on sale on Amazon for $50 (go for it!). Here is a question for our British readers: Who is F.A. Wilson? There is almost nothing about him on the web, other than references to this and other similarly brilliant technical books. He was writing in the 1980s and 90s. What a great knack he has for explaining this stuff.
---------------------------------------------
First sentence:
We are not physicists whose mission in life is to dig deeply into the mysteries of the universe but people wishing to know something about what makes electricity tick.

Explains in crystal clear terms the absolute fundamentals behind electricity and electronics. Really helps you to discover and understand the subject, perhaps for the first time ever.

Have you ever:

• Wondered about the true link between electricity and magnetism? • Felt you could never understand the work of Einstein, Newton, Boltzmann, Planck and other early scientists? • Just accepted that an electron is like a little black ball? • Got mixed up with e.m.f. and p.d. ? • Thought the idea of holes in semiconductors is a bit much?

Then Help is at hand with this inexpensive book, in as simple a way as possible and without too much complex mathmematics and formulae.

Monday, November 16, 2009

Now THAT'S a SHACK! W9EVT

You can barely see George, W9EVT, down there in the back! And this is only one portion of his shack. Jeff, KO7M, alerted us to this masterpiece of radio architecture. Many more pictures here:
http://www.qrz.com/db/w9evt

VK3AJG's DSB RIG

John, VK3AJG, sent us info on his new portable 80 meter DSB transceiver. Very nice. A welcome change from the usual NE602-based rigs. Double-A battery power and the use of a ceramic resonator are other nice features of this rig. GO DSB!
Details here: http://members.ozemail.com.au/~jgprice/80M-DSB.html

Sunday, November 15, 2009

SolderSmoke Podcast #118

http://www.soldersmoke.com

In SolderSmoke 118:

15 November 2009

Trip to the North of Italy -- All the way to Trieste!

SSSSS SSSSSSolution?
Playing with PSK-31 -- Shortwave Watching
I0/N2CQR wins CQ WW DX! (QRP, HB, DSB category)
New England Code Talker
Monitoring Apollo 11
Adventures in Surface Mount Soldering with Softrock 40
MAILBAG

Designer: Douglas Bowman | Dimodifikasi oleh Abdul Munir Original Posting Rounders 3 Column