In amplitude shift keying (ASK), the carrier signal’s strength varies to describe binary 1 or 0. Both frequency and phase remain constant while the amplitude modifies. A bit duration is a time that represents one bit. The signal’s peak amplitude during each bit duration is continuous, and its value is ... Read More

Digital-to-Analog conversion or digital-to-analog modulation is the phase of converting one of the features of an analog signal depending on the data in a digital signal (0s and 1s) when we communicate information from one system to another across a public access phone line.For example, the initial data are digital, ... Read More

When an analog signal is digitalized, that is known as analog-to-digital conversion.Consider a human address a voice in the structure of an analog signal. We require to digitalize the analog signal that is smaller inclined to noise. It needed a decrease in the several values in an analog message defined ... Read More

The bipolar encoding scheme defines three voltage methods: positive, negative, and zero. In the Bipolar encoding scheme, zero levels define binary 0, and binary 1 is described by rotating positive and negative voltages.Assume the first 1 bit is described by positive amplitude. A negative voltage means the second 1 bit; ... Read More

Polar encoding is an encoding design that needs two voltage methods — one is positive, and the second is negative.An average voltage method is decreased using both techniques, and the unipolar encoding scheme’s DC component is removed.In Manchester and differential encoding, each bit includes both +ve and –ve voltage. Therefore, ... Read More

Digital transmission system manages by sending voltage pulses and a medium link, usually a wire or cable. The most encoding one voltage stands for binary '0' and other voltage as binary '1'.The polarity of pulse defines either +ve or – ve unipolar encoding because it works with only one polarity. ... Read More

For data transmission or transmissions, depending on the distance between devices and transmission media, the data must be converted in a form that can be quickly and correctly transmitted. Mostly the information is transmitted in the form of electrical signals. The conversion of data bits into electrical signals cannot be ... Read More

Network devices can relate PCs or other electronic tools to share documents or resources like printers or fax machines. Devices can install a Local Area Network (LAN) are the general type of network devices used by the public. A LAN needed a hub, router, cabling or radio innovation, connection cards, ... Read More

Modem stands for Modulation Demodulation. A modem converts the digital data signals into analogue data signals. They can be installed within the computer in a development slot applicable for it.There are frequently two types of Modems that are as follows −Standard ModemThe standard modems use generic device drivers, and they ... Read More

A device that can bridge several network structure is called a gateway. Thus gateways can link two dissimilar LANs. The major difference between gateways and routers is that routers operate at the OSI model’s network layer. In contrast, gateways operate from the lowest to the topmost layer, i.e., the application ... Read More