The primary line constants are parameters that describe the characteristics of copper (or other conductive materials) transmission lines in terms of the physical electrical properties of the line.
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Distributed Line Constant
Directional Coupler
Directional couplers are essential components used in radio frequency (RF) systems for signal monitoring, power measurement, and signal distribution.
DSB and DSB-SC Transmissions: An In-depth Analysis
Digital Telephone Exchange
Digital telephone exchanges play a key role in modern telephony systems by digitizing and switching telephone calls electronically using digital computing technology.
Digital Switching
In the digital telephone the commutation b/w subscriber is establish with the help of digital switches.
Class C amplifier operation
A class C amplifier is biased so that it conducts for less than 180° of the input. It will typically have a conduction angle of 90° to 150°.
Carson's Rule
Comparison Of FM & AM Signals
Both AM and FM systems are used in commercial and non-commercial applications. Such as radio broadcasting and television transmission. Each system has its own merits and demerits.
Care & Maintenance Of Transmitter
TRANSMITTER CHECKS
When first installed, when changes are made to it and at least one a year, every transmitter must be tested. The FCC required tests are
An Introduction to Automatic Telephone Systems
An automatic telephone system, also known as a dial telephone system, enables making calls and connections between callers automatically without human operators.