We based one of our most popular pop quiz challenges on a situation every tech support person has faced or will face at least once: a failed hard drive. In that particular case, a Compaq Prolinea 4/66 user was getting errors like "disk 0 error" and "invalid drive specification." Here were the other facts in the case:

- The data wasn't backed up.
- The problem came out of nowhere.
- The user had accessed Setup and tried to manually enter the settings for the drive type when "Auto" didn't work.
- There was no startup disk made by this machine.

Reviving a drive like that one-even if only long enough to copy its data before you throw the drive in the garbage-is a tough challenge. When I asked TechRepublic members how they would troubleshoot a situation like this one, we received over 200 solutions, and we heard from a number of TechRepublic members who wanted to know "what everybody else suggested." So we decided to publish this collection of over 200 ways to revive a hard drive...

Download full article: http://www.megaupload.com/?d=6QZC4EOL

Wow! This book made it to the second edition. Who’d have thunk that there was that much PC trouble out there?

Ah. The innocent. The naïve. The newbies. . . .

For the uninitiated, I have news for you: Trouble lurks around your computer like teenagers at the mall. That’s why you need this book! It uncovers the secrets and the power lurking beneath the goofy-colored Windows shell. Trouble will run scared and naked as you merely show this book’s cover to your computer monitor. No more waiting on hold to get the answers! No more reinstalling Windows! The truth, well, it’s in here!

Computers aren’t supposed to die or crash or hang or bomb or toss a hissy fit for no apparent reason. But, as any computer owner knows, computers often don’t do what they’re told. In it-was-working-yesterday syndrome, for some reason your computer decides that today is a different day and so it will act up. And in the who-owns-the-problem? issue, you have to decide whether the printer isn’t working because of the printer itself or because of Windows or because of the application that’s trying to print. I won’t even bore you with random Internet-disconnect problems, dead mice, monitors thrust into stupid mode, and a myriad of other problems — because these and other issues are all adequately covered, cured, and remedied throughout this handy little book.

Oh! And that Dummies thing? Face it: Anyone who uses a computer feels intimidated enough. It’s not that you’re a dummy, but dealing with these plastic and silicon monsters certainly makes anyone feel like a dummy. Relax! It’s the For Dummies approach that lets you recognize that it’s you who is in charge of your PC’s destiny. You can tame the beast! This book shows you how...

Download full article: http://www.megaupload.com/?d=FXN34Z3V

LATAR BELAKANG
· Untuk meningkatkan jarak jangkauan wireless LAN diperlukan antena eksternal dengan gain yang lebih tinggi dari antenna standard
· Antena eksternal High Gain harganya relative mahal
· Banyak barang-barang yang sering dijumpai dalam kehidupan sehari-hari yang dapat digunakan untuk membuat antenna High Gain dengan cara mudah dan biaya ringan

TUJUAN
· Sharing pengetahuan / pengalaman dalam hal pembuatan homebrew antenna khususnya Antenna WajanBolic dan hal-hal seputar Wireless Network
· Belajar bersama tentang dasar Link Budget dalam Sistem Komunikasi Terrestrial...

Download full article: http://www.megaupload.com/?d=CG2PV45O

So for some strange reason, I got the wardriving bug again. Cousin James got me thinking about building a 802.11 antenna. He wants one to try and leech broadband off one of his neighbors...

Download full article: http://www.megaupload.com/?d=8DJ5VPH1

Antena Wave Guide sebenarnya bukanlah antena, karena dia tidak melakukan penguatan melainkan hanya “mengarahkan” pancaran signal radio agar lebih fokus. Efek dari refleksi material dan fokus ini memang akhirnya menghasilkan “semacam penguatan”, namun itu bukanlah isu utama desain dari “antena” ini...

Download full article: http://www.megaupload.com/?d=C1MVSL89

Elisabetta Povoledo International Herald Tribune
TUESDAY, FEBRUARY 28, 2006

TRIESTE, Italy A physics research institute here is using a low-cost but effective tool to bolster communications in developing countries: the tin-can antenna.

Made from a can (the best are those used for seed oil, their creators say), a screw-on connector and a short brass wire, the "cantenna" is promoted by researchers as a cheap and efficient tool to amplify access to information and communication technologies in some of the world's poorest and often most remote areas. Cantennas work like regular antennas but cost around €2, or $2.40, to build, while those purchased in a store can cost several hundred euros. They are directional antennas and can be used for short- to medium-distance point-to-point links. They can also be used as feeders for parabolic dishes. That means that by aligning a series of cantennas, it is possible to receive signals from a distant receiver using one or more repeaters, which send, amplify and redirect radio waves, and send signals to remote areas...

Download full article: http://www.megaupload.com/?d=V0TX5W3E

for 802.11(b or g) Wireless Networks or other 2.4GHz Applications

Got no dough for a commercial WiFi antenna? Looking for an inexpensive way to increase the range of your wireless network? A tin can waveguide antenna, or Cantenna, may be just the ticket. This design can be built for under $5 U.S. and reuses a food, juice, or other tin can...

Download full article: http://www.megaupload.com/?d=ITRO7IFJ