Chemlink
Encyclopedia
Chemlink is a brand name for wireless video transmission products made by the [Chung-Hsin Electric and Machinery Manufacturing Corporation]http://www.chem.com.tw/ (CHEM) Wireless Communication Division. They focus on a 5.8GHz wireless transmission for audio and video. Not only OEM/ODM audio/video senders for many worldwide brand companies, also supply their video transmitter or receiver modules for the remote monitoring systems, wireless cameras or wireless CCTVs makers for professional and surveillance
Surveillance
Surveillance is the monitoring of the behavior, activities, or other changing information, usually of people. It is sometimes done in a surreptitious manner...

 markets.

Wireless solutions make use of the 5.8GHz range to avoid interference from the increasingly crowded 2.4GHz radio band. Where 2.4GHz frequency is wildly been used for making WLAN
Wireless LAN
A wireless local area network links two or more devices using some wireless distribution method , and usually providing a connection through an access point to the wider internet. This gives users the mobility to move around within a local coverage area and still be connected to the network...

 802.11b/g, Bluetooth
Bluetooth
Bluetooth is a proprietary open wireless technology standard for exchanging data over short distances from fixed and mobile devices, creating personal area networks with high levels of security...

 devices, Cordless phones and Microwave ovens. Therefore, 5.8GHz solutions are getting more and more public to use in home video transmission, especially in North America and Australia. In the security and surveillance markets, especially for long range video transmissions, more people are starting to use 5.8GHz frequency for cleaner bandwidth for better outcome.

In 1956, Chung-Hsin Electric and Machinery Manufacturing Corp.(CHEM) was established. During the early years,the major scope of this company's business was focused on the manufacture of electric motors and generators. In 1970, they stepped into the market of home appliances including air-conditioners. Before long, they took the lead in the production of air conditioners, refrigerators and washing machines in Taiwan
Taiwan
Taiwan , also known, especially in the past, as Formosa , is the largest island of the same-named island group of East Asia in the western Pacific Ocean and located off the southeastern coast of mainland China. The island forms over 99% of the current territory of the Republic of China following...

. In 1983, operating with Hitachi
Hitachi, Ibaraki
is a city located on the Pacific Ocean in Ibaraki Prefecture, Japan. Its name could be directly translated as "sunrise", but probably more appropriately adapted to "prosperous wealth" .-Demographics:...

, Japan, they successfully developed SF6
Sulfur hexafluoride
Sulfur hexafluoride is an inorganic, colorless, odorless, and non-flammable greenhouse gas. has an octahedral geometry, consisting of six fluorine atoms attached to a central sulfur atom. It is a hypervalent molecule. Typical for a nonpolar gas, it is poorly soluble in water but soluble in...

 gas insulated switchgear
Switchgear
The term switchgear, used in association with the electric power system, or grid, refers to the combination of electrical disconnects, fuses and/or circuit breakers used to isolate electrical equipment. Switchgear is used both to de-energize equipment to allow work to be done and to clear faults...

 and gas insulated circuit breakers. Ten years later in 1993, in accordance with Taiwan government's policy, they actively participated in large-scaled, “Turn-Key,” engineering projects of the government. The total contract value was 18 billion NT dollars. CHEM was transformed again in 2000. Since then, they have been engaged in RF Radio frequency
Radio frequency
Radio frequency is a rate of oscillation in the range of about 3 kHz to 300 GHz, which corresponds to the frequency of radio waves, and the alternating currents which carry radio signals...

and wireless communication manufacturing business. They started to use Chemlink as a brand name of their AV sender products line.
The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
x
OK