CHIBA, JAPAN-- Maspro Denkoh, a Japanese manufacturer of wireless communications equipment, has developed a transmission system that can send Wi-Fi signals as far as three miles.
The system relies on high-gain antennas produced by the company and is compatible with standard IEEE802.11b/g communications equipment, company representatives said on Wednesday at the Ceatec Japan 2005 trade show here.
The company began selling its new configuration of antennae in Japan in September, but has no plans to offer the equipment overseas.
Pairing Antennae
Wireless networks use two types of antennae. One is a tube-shaped model about 40 centimeters long and the other is a much shorter and square-shaped model. Combining two of the tubular antennae--one on each end of the link--will result in a transmission distance of about three miles while one of each antenna will work on distances up to 1.2 miles and two of the compact antenna will be fine for up to a little more than half a mile, according to the company.
They can be used with standard wireless LAN equipment that support external antennas, said Seiichi Maejima, new products leader in the company's sales department.
Maspro is promoting them for remote monitoring and security applications and is offering a complete system for potential users. The system includes a camera, video encoder, and transmitter unit and antenna for the remote site, all of which are suitable for outdoor use. At the receiving end is another antenna and wireless LAN access point. The system comes with software that can support video from up to nine remote cameras.
It is priced depending on the transmission distance involved. The three-mile version costs $5255, while the half-mile version costs $4700. All systems come with a single camera and remote unit. Additional remote kits cost $4723 for the version with the tubular antenna or $4000 for the square antenna type.
http://news.yahoo.com/s/pcworld/20051005/tc_pcworld/122851;_ylt=AtJxKG_b1wJmDI30Q_kCp_ojtBAF;_ylu=X3oDMTBiMW04NW9mBHNlYwMlJVRPUCUl
The system relies on high-gain antennas produced by the company and is compatible with standard IEEE802.11b/g communications equipment, company representatives said on Wednesday at the Ceatec Japan 2005 trade show here.
The company began selling its new configuration of antennae in Japan in September, but has no plans to offer the equipment overseas.
Pairing Antennae
Wireless networks use two types of antennae. One is a tube-shaped model about 40 centimeters long and the other is a much shorter and square-shaped model. Combining two of the tubular antennae--one on each end of the link--will result in a transmission distance of about three miles while one of each antenna will work on distances up to 1.2 miles and two of the compact antenna will be fine for up to a little more than half a mile, according to the company.
They can be used with standard wireless LAN equipment that support external antennas, said Seiichi Maejima, new products leader in the company's sales department.
Maspro is promoting them for remote monitoring and security applications and is offering a complete system for potential users. The system includes a camera, video encoder, and transmitter unit and antenna for the remote site, all of which are suitable for outdoor use. At the receiving end is another antenna and wireless LAN access point. The system comes with software that can support video from up to nine remote cameras.
It is priced depending on the transmission distance involved. The three-mile version costs $5255, while the half-mile version costs $4700. All systems come with a single camera and remote unit. Additional remote kits cost $4723 for the version with the tubular antenna or $4000 for the square antenna type.
http://news.yahoo.com/s/pcworld/20051005/tc_pcworld/122851;_ylt=AtJxKG_b1wJmDI30Q_kCp_ojtBAF;_ylu=X3oDMTBiMW04NW9mBHNlYwMlJVRPUCUl
