Basics
Types of Modems
• Modems can be of several types and they can be categorized in a number of ways. •…
July 22, 2021 · Rajil TLAuthor: Rajil TL
Rajil TL is a SenseCentral contributor focused on tech, apps, tools, and product-building insights. He writes practical content for creators, founders, and learners—covering workflows, software strategies, and real-world implementation tips. His style is direct, structured, and action-oriented, often turning complex ideas into step-by-step guidance. He’s passionate about building useful digital products and sharing what works.
Basics
What is a Modem?
Modem is abbreviation for Modulator – De-modulator. Modems are used for data transfer from one computer network to another computer network through telephone…
July 22, 2021 · Rajil TLBasics
Quadrature Phase Shift Keying
The Quadrature Phase Shift Keying QPSKQPSK is a variation of BPSK, and it is also a Double Side Band Suppressed Carrier DSBSCDSBSC modulation…
July 22, 2021 · Rajil TLBasics
Phase Shift Keying
Phase Shift Keying PSKPSK is the digital modulation technique in which the phase of the carrier signal is changed by…
July 22, 2021 · Rajil TLBasics
Frequency Shift Keying
Frequency Shift Keying FSKFSK is the digital modulation technique in which the frequency of the carrier signal varies according to…
July 22, 2021 · Rajil TLBasics
Amplitude Shift Keying
Amplitude Shift Keying ASKASK is a type of Amplitude Modulation which represents the binary data in the form of variations…
July 22, 2021 · Rajil TLBasics
What is parallel transmission?
When data is sent using parallel data transmission, multiple data bits are transmitted over multiple channels at the same time. This…
July 22, 2021 · Rajil TLBasics
What is serial transmission?
When data is sent or received using serial data transmission, the data bits are organized in a specific order, since they…
July 22, 2021 · Rajil TLBasics
Quantization
The digitization of analog signals involves the rounding off of the values which are approximately equal to the…
July 22, 2021 · Rajil TLBasics
Sampling
Sampling is defined as, “The process of measuring the instantaneous values of continuous-time signal in a discrete form.” Sample is…
July 22, 2021 · Rajil TL