Ham Radio Data Center

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Welcome to Ham Radio Data Center, free diy schematics and datasheets

Radio Operators Are the Eyes of the National Weather Service:

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Even in the age of high-powered Doppler radar, instant communications and the Internet, the National Weather Service and local safety officials still rely heavily on old methods for accurate observations and emergency communications. Volunteer amateur -- or ham -- radio operators still play a primary role in providing on-site information about tornadoes and storm conditions to weather forecasters and letting emergency responders know what's going on. "There's nothing like ground troops," said Keith Wells, assistant coordinator with the Tarrant County Office of Emergency Management, who was helping the National Weather Service on Saturday at the annual Skywarn storm spotter training session at Texas Christian University. "One of the most important things we do all year is train the spotters," Wells said. "When you have a trained observer on the ground at Bryant Irvin Road reporting golf-ball-sized hail or a funnel cloud, that really tells a meteorologist what's going on."

Read more: eHam.net News

 

Dell SP2309W Monitor Review

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Fancy a 23in widescreen TFT with a resolution higher than 1,920 x 1,200? For less than £190? Then you've come to the right place. Join us for a review of Dell's brilliant budget SP2309w TFT.

Read more: bit-tech.net Hardware Feed

 

Philips Xenium X700 aint too fond of its AC adapter

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The word Xenium immediately sets off thoughts of frolicking in Dutch fields for days without nary a care in the world with respect to battery life, and the cute little X700 aligns perfectly with those whimsical thoughts.

Read more: New from Electronics Infoline

 

This Week in Amateur Radio #822 - Week of January 10, 2009

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Stories covered and special features in This Weeks edition: 01. 6.2 Earthquake strikes Costa Rica, emergency amateur frequency declared. 02. A Florida amateur is murdered allegedly by his own son. 03. The FCC Commissioners - - Now There Are Four. 04. The DXpedition to Desecheo Island gets ready to rock and roll. 05. An amateur radio satellite is planned to orbit planet Venus. 06. Hamas accuses Isreal of interrupting its radio broadcasts in Gaza. 07. A Pro-Tamil radio station is attacked in Sri-Lanka. 08. The DXpedition to Sable Island has been post-poned. 09. There is a new TV remote control that will run forever on a single cell. 10. Los Angeles County is granted a waiver by the FCC to build a new interoperable emergency communications system on television channel 15. 11. A look at the current state of the US Digital Television Transition. 12. A ham makes a 1.5 watt transmitter from an old CFL lightbulb. 13. Heavy Metal is coming to the ham bands. 14. The Radio Amateurs of Canada assigns special prefixes. 15. Courage Handi-Ham Center Update with Pat Tice WA0TDA. 16. Working Amateur Radio Satellites with Bruce Paige, KK5DO. 17. Special event station listings. 18. Weekly propagation forecast 19. The Random Access Thought with Bill Baran, N2FNH. "Kids Day" 20. TWIAR 2009 QSL Cards are now available! Write in for yours today! 21. The Ancient Amateur Archives with Bill Continelli, W2XOY. 22. TWIAR Staff Blogs are now on-line. Go read them. 23. Technology News and Commentary with Leo Laporte. 24. The ARRL Board of Directors will meet in Windsor, Conneticut next week. 25. Nominations are now open for the various Dayton HamVention Awards. 26. Applications are now being accepted for FAR (Foundation for Amateur Radio) Scholarships. 27. NASA is now reviving old tapes with digital lunar photos from the 1960's. 28. Ireland tests a new national Emergency Alert System. 29. A look at the National Novice Society. 30. 2008 goes in the record books as an almost sunpot free year. 31. One mode down - Two to go! The ARRL Triple Play Award is a big success. 32. A new totally silent radio station launches on the internet. 33. Scientists discover a new unknown source of radio signals coming from "Out There".

Read more: This Week in Amateur Radio Podcast

 

Ericsson Xperia X2 Coming Soon?

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A new set of leaked photographs of the Sony Ericsson Xperia X2 just hit the Internet. The X2, also known as the Vulcan, has been expected for a while now.


Read more: New from Electronics Infoline

 

VK9NI (OC-005) Norfolk Island DXpedition 2009

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The Norfolk Island DXpedition team have changed their callsign from VK9AAA to VK9NI

Read more: Southgate Amateur Radio Club RSS Feed

 

Onkyo Unveils a Stylish New iPod Dock, the ND-S1

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Last week Onkyo introduced a nice iPod docking station in Japan, the ND-S1, thats compatible with iPod Touch, iPod Classic, Nano This new dock is made to be connected to a home-theater system, via its digital optical and coaxial audio outputs or composite A/V outputs.


Read more: New from Electronics Infoline

 

2009 Singapore Robot Games

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John from Society Of Robots was at the 2009 Singapore Robot Games last month, and has a bunch of awesome video footage of some of the events. The above video shows hexapod and quadraped line following races, and the video below is of some robo-soccer games: After the jump, some line following racing robots that use rotating cams instead of wheels.

Read more: New from Electronics Infoline

 

WN-LA, I-O Datas Latest Wireless LAN Converter

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The WN-LA/C is I-O Datas latest wireless LAN converter for connecting a TV to a network wirelessly at 300Mbps. Thanks to its Night Mode, the WN-LA/C automatically shuts-down and wakes-up when needed, allowing I-O Data to claim a 30% decrease in energy consumption.


Read more: New from Electronics Infoline

 

JAPAN TEXTURE Part II, Special Edition, the Best for Your iPhone

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Back in April 2009, Softbank announced a gorgeous limited edition lacquered iPhone case JAPAN TEXTURE for iPhone 3G: Gorgeous Hand Made Lacquered Cases for Your Beloved iPhone, while absolutely gorgeous and expensive (39,800 Yen) and ultra limited with only 50 pieces each, Softbank thought that wasnt enough and yesterday we were stunned to receive an update via press release of a new set of AMAZING lacquered iPhone cases, the APAN TEXTURE Special Editions sold for 99,800 Yen each, five models (741 or $1051 US) Indeed the recession is over and we are back on track for recovery! .


Read more: New from Electronics Infoline

 

Propagation Forecast Bulletin #52 de K7RA:

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Sunspot activity continued this week, with new group 1035 emerging December 14, following 1034, which appeared December 9. Daily sunspot numbers since December 9, through December 17, have been 13, 13, 13, 12, 14, 28, 38, 30 and 24. Solar flux values have been above 80 since December 15, with the values from Tuesday through Thursday of this week at 81.6, 83.2 and 86.9. The 2000z (local noon in Penticton) are the official daily number, and on December 17 at 1800z the flux value was 88.1, higher than any flux value in the past three years.

Read more: eHam.net News

 

Kuroutoshikou new Ultra compact Mini Server

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About the size of an AC adaptor, the KURO-SHEEVA has just a size of 96. 5x110x48. 5mm and is in fact a ultra compact Linux Box that can be use as a server.


Read more: New from Electronics Infoline

 

Dell Prepares New Studio 15 1555 Laptop

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Dell is going to release the new Studio 15 notebook - the 1555 model with the ATI Mobility Radeon HD 4570 dedicated GPU, according to a product support page on Dell.

Read more: New from Electronics Infoline

 

New Left 4 Dead 2 zombies, items unveiled

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Valve has unveiled a bunch of new details about Left 4 Dead 2, including new items and zombies.

Read more: bit-tech.net Feed

 

Google and Amazon debut cellphone e-books, eye strain

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Sure, we pretty much figured that the V-Book (which is actually not a book at all) would be the final nail in the coffin of what was once known as literature, but it looks like both Google and Amazon have other plans.

Read more: New from Electronics Infoline

 

Robovie Rescues Little Wooden Doll From Obstacle Course, Asks Why

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If you cant justify buying yourself a humanoid robot to play with, ask yourself this question: what would you do if a little wooden doll was stuck at the end of an obstacle course? Huh? Yeah, thats right, youd just stare helplessly as it continued to be little and wooden.


Read more: New from Electronics Infoline

 

Marantz Displays VP-11S2L Projector at Audio Karma Fest

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Marantz is one of the worlds leading manufacturers of advanced home entertainment solutions. Today they announced that they will be providing live demonstrations of their latest audio and video devices this weekend at the sixth annual Audio Karma Fest, in Livonia, Michigan, May 2-3.


Read more: New from Electronics Infoline

 

Intelligent Siftables blocks get even more face time

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We were captivated when we first came across David Merrills brilliantly simple Siftables idea last year, and though some time has passed us by, were no less amazed this go round.

Read more: New from Electronics Infoline

 

Screen Grabs: Time Capsule holds all sorts of Lifes secrets

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Screen grabs chronicles the uses (and misuses) of real-world gadgets in todays movies and TV. Send in your sightings (with screen grab!) to screengrabs at engadget dt com.

Read more: New from Electronics Infoline

 

This Week in Amateur Radio #816 - Week of November 29, 2008

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Stories covered and special features in This Weeks edition: 01. ARRL President Emeritus George Wilson, W4OYI, becomes a silent key. 02. International Amateur Radio Union Region One meets in Croatia. 03. CQ editorial is critical of FCC's lack of amateur radio enforcement. 04. Select Canadian amateurs get privileges for 500 kilohertz band. 05. Congress working on Analog Television Extension Bill and Border Analog television extension bill. 06. Amateur repeaters in New South Wales Australia may face site eviction. 07. NASA scientists confirm that Solar Cycle 24 is finally underway. 08. The date is set for the activation of a rare one - Desecheo Island. 09. Amateur Radio and Technology News Shorts. 10. The South Africa Radio League is seeking our HF net controllers. 11. The DXpedition to the Spratley Island group is on hold. 12. A Mississippi radio station is fined $15,000 by the FCC. 13. A Florida broadcaster is fined by the FCC for interfering with another broadcaster, and having spurs across the AM band. 14. The Big 89 - WLS - A history retrospective Part #2 of 2. 15. The Random Access Christmas - No.1 with Jock Elliott KB2GOM. 16. The Ancient Amateur Archives with Bill Continelli, W2XOY. Weaver. 17. Working Amateur Radio Satellites with Bruce Paige KK5DO. 18. Senators in Congress are pushing for the reinstatement of The Fairness Doctrine. 19. Technology News and Commentary with Leo Laporte. 20. The FCC fines a company for erecting its tower 140 feet off the mark. 21. TWIAR QSL Cards are now available. Write in for yours today! 22. The first ARISS School contact in New Zealand is made. 23. The music industry is challenged on digital music sharing. 24. QRZ.com institutes new policy and code to thwart spamming and phishing. 25. Special event station listings 26. The Gateway 160 Meter Net Report with Vern Jackson, WA0RCR. 27. Weekly propagation forecast. 28. Courage Handi-Ham System News and Update with Pat Tice WA0TDA. 29. New WSPR QRP mode is breaking all sorts of DX records. 30. A Belgian amateur radio operator will command the next crew on the ISS. 31. Hashafisti Scratchi - becomes a silent key - a look back. This Week in Amateur Radio" is a weekly amateur radio audio, on the air, news magazine/bulletin service, produced by a lot of dedicated volunteers, by Community Video Associates, Inc., a New York State not-for-profit corporation. The mailing address for our support fund is: This Week in Amateur Radio Support Fund P.O. Box 30 Sand Lake, New York 12153

Read more: This Week in Amateur Radio Podcast

 

iWoz

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iWoz

I finished reading this wonderful book two weeks back. It’s a very inspirational book and I think every self-respecting engineer should read this book.

Read more: VU3RDD Station Log

 

Yaesu VX-7R Triple band Handheld radio (Black) - 350.00 USD

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Up for Sale is a 100% Brand New YAESU VX-7R(BLACK) in MINT condition.FREE shipping !THE WORLDS FIRST SUBMERSIBLE AMATEUR HAND-HELDProtected against water ingress by a wide array of rubber gaskets and other weatherproofing techniques, the VX-7R is rated for 30 minutes of submersion at a depth of feet (JIS-7), plus a tough magnesium body with rubber bumper pads, making it ideal for outdoor use. Plus you get Dual Receive, 50/144/430 MHz operation plus wide-band receive coverage, a full color status indicator Strobe, and an Internet key for quick access to the exciting new WIRES repeater-internet linking system.Utilizing a reliable FET power amplifier circuit, the VX-7R provides a full Watts of power output on the 50, 144, and 430 MHz Amateur bands, with bonus coverage of the 222 MHz band at 300 mW (USA version only). And for 6-meter AM enthusiasts, you also get Watt of carrier power on the 50 MHz band. Four power levels may be selected, each offering its own degree of battery conservation.Features:- 900 Memories - AM FM BCB - AM band and full SW to 30 MHz - CTCSS DCS - European Tone Burst - Wideband Receive - True Dual Receive - Internet Key for Access to WIRES - ARTS-Automatic In-Ran

Read more: Just Listed: HamBid - The Ham Radio Auction Site

 


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