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May 2010 |
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According to Wikipedia as at 17 May 2010 (http://en.wikipedia.org/wiki/DBm), dBm is an abbreviation for the power ratio of the measured power referenced to one milliwatt (mW). It is used in radio, microwave and fiber optic networks as a convenient measure of absolute power because of its capability to express both very large and very small values in a short form.
To express an arbitrary power P in Watt as x dBm, the following equation may be used: x = 10 log10 (1000P)
Some examples: Zero dBm equals one milliwatt. A 3 dB increase represents roughly doubling the power, which means that 3 dBm equals roughly 2 mW. For a 3 dB decrease, the power is reduced by about one half, making −3 dBm equal to about 0.5 milliwatt.
dBW is referenced to one watt (1000 mW).
By comparison, the decibel (dB) is a dimensionless unit, used for quantifying the ratio between two values, such as signal-to-noise ratio.
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May 2010 |
WAP-5015D (WiBorne CAP-5015D) is the point of connection to Wireless Outdoor Networks.
WAP-5015D utilizes a 200mW powered radio and a built-in 5GHz 15dBi dual polarity directional antenna.
WAP-5015D supports two operational modes, the AP mode and the WDS mode, respectively with built-in remote management features which simplify the deployment and reduce costs for continued maintenance of the outdoor bridge:
• AP (Access Point): It can be deployed as a traditional fixed wireless Access Point
• WDS : It can be expanded Wireless Service as WDS Link
• CPE (Customer Premises Equipment): That connects to Wireless Internet Service Provider's (WISP)
• Universal Repeater with client bridge mode.
Street Price of the product not including installation is around $400 + GST
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Read more...
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May 2010 |
WAP-5015D (WiBorne CAP-5015D) is the point of connection to Wireless Outdoor Networks.
WAP-5015D utilizes a 200mW powered radio and a built-in 5GHz 15dBi dual polarity directional antenna.
WAP-5015D supports two operational modes, the AP mode and the WDS mode, respectively with built-in remote management features which simplify the deployment and reduce costs for continued maintenance of the outdoor bridge:
• AP (Access Point): It can be deployed as a traditional fixed wireless Access Point
• WDS : It can be expanded Wireless Service as WDS Link
• CPE (Customer Premises Equipment): That connects to Wireless Internet Service Provider's (WISP)
• Universal Repeater with client bridge mode.
Street Price of the product not including installation is around $400 + GST
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Read more...
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May 2010 |
WAP-5015D (WiBorne CAP-5015D) is the point of connection to Wireless Outdoor Networks.
WAP-5015D utilizes a 200mW powered radio and a built-in 5GHz 15dBi dual polarity directional antenna.
WAP-5015D supports two operational modes, the AP mode and the WDS mode, respectively with built-in remote management features which simplify the deployment and reduce costs for continued maintenance of the outdoor bridge:
• AP (Access Point): It can be deployed as a traditional fixed wireless Access Point
• WDS : It can be expanded Wireless Service as WDS Link
• CPE (Customer Premises Equipment): That connects to Wireless Internet Service Provider's (WISP)
• Universal Repeater with client bridge mode.
Street Price of the product not including installation is around $400 + GST
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Read more...
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May 2010 |
If we stored all conversations that took place since humans talked to each other on Day One, the total storage space required is estimated to be 5 million Terabytes. This does not seem a lot of storage as we can buy a hard disk as large as 2 TB. That is, a single person such as you may have the money to buy enough hard disks to store all human conversations. Data is a different story.
There are about 800 million Terabytes around the world and the volume is doubling every year if we include personal photos and videos. Whilst we cannot produce proof of the figures given above, we are trying to say that there is a huge and growing demand for personal and business storage space. If you think your PC is full and cannot take on any more files, think about NAS (Network Attached Storage). They are inexpensive. If your company server is full, read more about DAS and SAN below. They may sound expensive but they are not. Feel free to discuss your situation with the editor.
http://www.compucon.co.nz/content/view/586/228/
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