Consumers Of Two-Way Radio Batteries are Pleased With New Choices and Lower Prices

Written by Cut-Rate Batteries

For Immediate Release May 25, 2005

Cut-Rate Batteries has enteredrepparttar on-line two-way radio battery market withrepparttar 139641 launch of its new site, Our website provides consumers with a better alternative to original battery manufacturers of two-way radio equipment such as Motorola and Kenwood on both price and quality. Business consumers have shown enthusiasm forrepparttar 139642 new site as an easy way to stock up on battery inventories.

Cut-Rate Batteries, an international distributor of batteries for two-way radio and barcode scanning equipment announcedrepparttar 139643 launch of its online store, last week, at . Targeting business consumer markets for two-way radio and barcode scanner batteries, Cut-Rate Batteries is hitting some ofrepparttar 139644 biggest players inrepparttar 139645 industry where they are least able to compete: Price.

Likerepparttar 139646 printer and printer-ink markets, batteries for specialized portable and wireless devices such a two-way radios and barcode scanners have been a very lucrative and continuous revenue source for companies such as Motorola, Kenwood, Symbol and Intermec. Consumers, until now, had very little choice inrepparttar 139647 purchase of batteries for such products. They could either payrepparttar 139648 inflated prices ofrepparttar 139649 original manufacturers, or accept lower quality, generic batteries with little assurance thatrepparttar 139650 expensive batteries would work as well, or last as long.

Optical Wireless Security

Written by Lightpointe Communications


Network security is one ofrepparttar major concerns for any business or organization transporting sensitive and confidential information overrepparttar 139080 network. Such network security concerns involverepparttar 139081 lowest network layer, typically referred to asrepparttar 139082 physical layer (layer one), as well as higher software layers ofrepparttar 139083 networking protocols. Most ofrepparttar 139084 interception activity by outside intruders occurs within higher protocol software layers. Password protection or data encryption are examples of counter measures to protectrepparttar 139085 network from outside and unwanted tampering. Intrusion ofrepparttar 139086 physical layer itself can be another concern for network operators, although it is a far less likely target for unauthorized access to networking data. This can be a threat if information is transported over a copperbased infrastructure that can be easily intercepted, but optical wireless transmissions are amongrepparttar 139087 most secure connectivity solutions, regarding network interception ofrepparttar 139088 actual physical layer. LightPointe’s optical wireless networking equipment is based on physical layer transport. This white paper discusses security aspects involvingrepparttar 139089 physical layer.

Optical Wireless Systems and Network Security

With its cost-effective and high-bandwidth qualities, optical wireless products operating inrepparttar 139090 near infrared wavelength range are an alternative transport technology to interconnect highcapacity networking segments. These optical wireless products, based on free-space optics (FSO) technology, are license-free worldwide. Optical wireless system installations are very simple, andrepparttar 139091 equipment requires very little maintenance. These features make optical wireless solutions appealing to end-users and service providers globally. As a result,repparttar 139092 number of optical wireless system installations to for enterprise, cellular, and metropolitan area network traffic demands has increased significantly—even duringrepparttar 139093 recent telecommunications sector slowdown.

Because optical wireless systems send and receive data throughrepparttar 139094 air between remote networking locations, network operators and administrators are naturally concerned aboutrepparttar 139095 security aspects. One ofrepparttar 139096 main reasons for this concern is based onrepparttar 139097 fact that wireless networking solutions is a category in which security and interference problems are very common in radio frequency (RF) or microwave-based communication systems. Such concerns are not valid for optical wireless systems.

Optical wireless systems operate inrepparttar 139098 near infrared wavelength range slightly aboverepparttar 139099 visible spectrum. Therefore,repparttar 139100 human eye cannot visibly seerepparttar 139101 transmission beam. The wavelength range around 1 micrometer that is used in optical wireless transmission systems is actuallyrepparttar 139102 same wavelength range used in fiber-optic transmission systems. The wavelength range around 1 micrometer translates into frequencies of several hundred terahertz (THz). These frequencies are significantly (roughly three to four orders of magnitude) higher thanrepparttar 139103 highest frequencies used in commercially available microwave communications systems operating around 40 GHz. This difference in frequency of operation is one ofrepparttar 139104 main reasons why optical wireless systems belong intorepparttar 139105 equipment category of optical communication systems first rather than wireless, RF or microwave, transmission solutions. While typical RF and microwave antennas used to interconnect two remote networking locations in a point-to-point architecture spread outrepparttar 139106 radiation over angles between 5 and 25 degrees, optical wireless systems use very narrow beams that are typically much less than 0.5 degrees. For example, a radial beam pattern of 10 degrees roughly corresponds to a beam diameter of 175 meters at a distance of 1 kilometer fromrepparttar 139107 originating source, whereas a beam of 0.3 degrees divergence angle typically used in optical wireless systems corresponds to a beam diameter of 5 meters atrepparttar 139108 same distance.1 This wide spreading ofrepparttar 139109 beam in microwave systems, combined withrepparttar 139110 fact that microwave antennas launch very high power level isrepparttar 139111 primary reason for security concerns. An outside intruder can easily interceptrepparttar 139112 beam or power reflected fromrepparttar 139113 target location and pick up sensitive network information by using a “spectral scanner” tuned torepparttar 139114 specific RF or microwave transmission frequency. To overcome these security concerns,repparttar 139115 microwave industry uses wireless encryption protocols (WEP) to protectrepparttar 139116 transmission path from being intercepted. Although it is extremely unlikely that it is possible to break into a sophisticated encryption code, there is alwaysrepparttar 139117 concern that it can be done.

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