A Modem is one of the most important hardware devices used for a
computer especially for the purposes of networking for the internet. Modems are
used to modulate signals of analog types so as to be able to encode the digital
information from it. Modems are also used for demodulation of the signals so as
to decode the information transmitted.
Therefore it is for the sole purpose of transmission of the signal
easily so that it can be decoded to reproduce the digital information.
The classification of modems is done on the basis of the
information that can transferred in a given time period by them which is
usually measured in bps, or bits per second. Modems are now used by the
internet users, which preferably run faster than such as the cable and the ADSL
modems.
These days, modems offer great benefit to be used in the
telecommunication systems with the launch of radio modems. These radio modems
are microwave modems and can transmit even more than a hundred million bits per
second, which is a very high speed for any modem to work on. The launch of the
optical fibers has given rise to optical modems which are now used for the
purpose of transmission of data over undersea optical fibers. These radio
modems have unbelievably high rate of transmission, which can reach up to about
a billion bits per second.
Although modem internet connection has been replaced over the
recent years with broadband, modems still hold a vital position is certain
other aspects of the modern world such as the space telecommunications and of
course in telephone communications.
Wireless radio modems are used in a variety of technologies, in a
variety of industries, in order to send information and data over radio
spectrum. A wireless data modem can be used to communicate with wireless
digital radios effectively in a variety of different markets. Agriculture, the
oil and gas industry, the electric and utility industry, and the waste
management industry are just a few industries that currently utilize this
technology. Many benefits can be experienced from the use of wireless radio
modems in these industries and others. Some of the more universal benefits
include: asset monitoring and tracking, wireless remote control, wireless SCADA
systems, and industrial telemetry.
Industrial wireless modems use electromagnetic waves to transmit
modulated data. This is done using radio modems as access points. Radio modems
are radio frequency transceivers for serial data. They transmit to and receive
signals from another matching radio modem. Access points are various junctures
in the network that enable wireless network connectivity.
Advantages of
a Wireless Modem
- Wireless modem offers greater extensibility as it allows users to share and extend the Cable/DSL/phone connection anywhere.
- These industrial modems significantly reduce the cost and time otherwise required in Ethernet cabling.
- Wireless modems assure mobility as they offer user the freedom to work on devices such as laptop or PDAs form home or office or from anywhere.
- Wireless modems, whether it is for a laptop modem or Internet modem or cell modem, are easy to install.
- Improved Efficiency – Industrial wireless modems share computer peripherals and data files from anywhere within wireless network for greater efficiency.
