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This year
2008
VLF Radio Signals
by rike_
The source of most natural radio signals is lightning. When a lightning bolt strikes, a massive amount of charge is moved and this acts in much the same way as moving charge in a radio transmitting antenna. The frequencies emitted by lightning range from 0 Hz to over 100 kHz with all frequencies being emitted simultaneously with the visible flash of lightning.
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2007
Design Crack » Blog Archive » The 23/6 Mobile PC by Antenna Design for Fujitsu
by sbrothier
This is a prototype design from a firm called Antenna Design for a new type of laptop. It’s basically made of three leaves that fold together to create a much smaller area than the current laptops, but the advantage to this design is the user would have a full size keyboard, which I love. Antenna, by the way, is very adept at solving problems of interaction design.
How to get HDTV for free
by BrainTurner1
& 1 other
Simply using a simple antenna, HDTV enabled TV's could receive HDTV programming without having to pay!
How to get HDTV for free
by BrainTurner
& 1 other
Simply using a simple antenna, HDTV enabled TV's could receive HDTV programming without having to pay!
iTeki Hidden Camera Wireless Signal Detection Pen,
by dkbb
***iTeki Hidden Camera Wireless Signal Detection Pen, Silver***
This versatile pen wireless signal detector is a perfect kit to help you stay away from
intention spying, no matter where you in a hotel, dressing room or anywhere personal privacy
need to be secured. It utilizes the 4th generation RF broad-brand wireless detecting technology,
it is a combination of RF and UV detection device, which allows you to detect wireless signals(brand between 100M-3000MHz), it is a very effective device to protect you from spying devices which required wireless signals transitions. It could automatic detect wireless signals and
alerts with a colorful flashing light at the tip of the pen, according to signal strength the flashing will be more frequent. It also could be used as a bill-tester, push the button on the
side of the pen to illuminate the UV light to check for fake currency by detecting the water
mark. It is a smart device to secure your privacy no matter where you are.
Features:
* Simple to use and easy to carry
* Integrated innovated micro-chip, built-in wireless antenna.
* Automatic RF UV detection
* Detects a radius of 1-10 meters (Depends on signal strength)
* Detect wireless signals of 900/1200/1300 and 2400/2600/3000MHz
* Built in protection to prevent mobile phone interference
* Frequency range 100MHz to 3GHz
* Currency checker
* Working voltage: 3.6V
* Power source: 3 LR41 battery. Last for two months.
* Color: Silver
2006
hField Technologies, Inc.
by wesvt
extender up to 1,000 feet with usb antenna - kind of big and bulky sep 2006
Artec T14A USB TV Tuner: HDTV on a Laptop - Gizmodo
by springnet
Plug the Artec T14A USB TV Tuner into your laptop, install the software and you're watching HDTV. All of a sudden you've bypassed buying an HDTV, setting up an HD cable box or anything else. Using its included antenna, it pulls in over-the-air HDTV broadc
WiMo - Antennas and Accessories
by nomadcom1
WiMo supplies antennas, ready to use coax-cables, two-way radios and accessories. The main activities of our business are Ham Radio, Wireless-LAN (WiFi) antenna solutions and customer specific antennas.
Ultra-cheap cell phone antenna
by Kaipyra
These are plans for an external cellphone antenna made from a wire hanger. The original writeup is at http://www.geocities.com/robert_maria/
