Crossing the Pond... with the power of your voice

Michael Rainey, AA1TJ, has his eye on the North Atlantic. He's been thinking about maritime horns, and how far they could reach. He's built another kind of horn. I'm pretty sure that this one will soon take his voice and -- using ONLY the power of that voice -- send it across the mighty Atlantic. That's a pretty astonishing horn!

Yesterday Michael put a really nice message up on the QRP-L list. This is the kind of message that has earned him the title "Poet Laureate of QRP." Here is an excerpt:

I'm currently sitting at a desk on top of Vermont's highest mountain.
In the far distance I can see the Presidential mountain range of New
Hampshire. Roughly twice as far away is the Atlantic Ocean. The other
night I spoke into a tin can, and the power of my voice carried a
message to the Maine seacoast where K1MPM heard me as clear as a bell.
I think this is absolutely magical. The present prospect of blowing
into a tiny horn and having this pittance of exhaled energy carry a
message back to England - when the bone shaking horn on the old Queen
Mary couldn't carry to the horizon - is nearly beyond comprehension. I
know this is how everyone of us feels when we operate QRP.

Read the rest of Michael's message here:
http://mjrainey.googlepages.com/lavoixdesoc%C3%A9ans

SolderSmoke Book Only $15.99 this weekend

Lulu.com is running a weekend "Rollback the Clock" Sale on the SolderSmoke book. 20% off! That puts the price of the U.S.-printed edition at around $15.99 Use the coupon code: FALLBACK when you are checking out.

For shipping from a printer in the U.S. (probably better for N. American buyers) Click here: SolderSmoke USA Version

For shipping from a printer in the UK, Spain, or the USA (probably better for UK and other European buyers)
Click here: SolderSmoke EU Version

The two versions are identical, except for a minor difference in the paper used. That's why the prices are a bit different.

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Some SolderSmoke In COMPUTERWORLD

"Hmm... I think I'll give ham radio a try."

Wow! The latest edition of COMPUTERWORLD contains a really inspiring article on ham radio by John Edwards, W6JE. I think this is exactly the kind of thing that could help bring computer enthusiasts into the world of The Knack. SolderSmoke is mentioned near the end of the piece. Thanks John! Nice work!
Here is the link:
http://www.computerworld.com/s/article/9139771/Want_to_bone_up_on_wireless_tech_Try_ham_radio?taxonomyId=

or: http://twurl.nl/0rx1vm

The D-104 -- A Completely Respectable Piece of Ham Radio Gear

Recently we have received some comments along the lines of, "Hey Bill, what's that chrome CB-lookin' mic doin' in your shack?" Having come into ham radio during the great Amateur vs. Citizen Band wars of the 1970s, naturally I was quite stung. Fortunately, an old magazine soon arrived with a photo (above) that should end forever any speculation about the D-104 being somehow "CB." The picture above is from the January 1952 issue of "The Shortwave Magazine" from the UK. G3ZI, L.S. Woollatt, is shown with his very fine station. With the exception of his two main receivers, all of this OM's gear was homebrew. Racks and racks of FB HB gear. If a chrome lollipop was OK with G3ZI, well, then I think that settles it.

The GBT: Great Big Thing (Green Bank Telescope)

Oh man, imagine sitting there in the Faraday-caged control room in the National Radio Quiet Zone, in an area in which things are kept so RF quiet that only diesel vehicles are allowed... "Wired" has a very nice on-line article and photo spread on this magnificent antenna:
http://www.wired.com/wiredscience/2009/10/gbt-nrao-tour/

Listen to "El Silbo" Voice-Powered Rig!

POWER SUPPLY

Michael, AA1TJ, has had more contacts with his voice-powered DSB rig. (Scroll down a bit for a look at the schematic and more comments on this amazing project.) Michael has posted two recordings of his signal (as received at distant stations). When I played these files, Ubuntu showed one of those semi-psychedelic groovy "visualizer" displays, complete with oscilloscope-like patterns; the signal looked FB Michael!
Have a listen: http://mjrainey.googlepages.com/elsilbo

I0/N2CQR WINS CQ WW DX CONTEST!!!!

I'm proud to report that in the category "Homebrew QRP Double-Sideband Phone, Western Trastevere" I think I'm the winner! I came in with massive point count of 7! And guess what -- ABSOLUTELY ALL of the reports I received were 59! Even when it seemed like I had to repeat my call 59 times!
The rig I used is pictured above. More details at:
http://www.gadgeteer.us/PORTABLE.html