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Long-Distance Communication (carriers and modems)

Long-Distance Communication (carriers and modems)

Long-Distance Communication (carriers and modems). Sending signals over long distances Modems Leased serial data circuits Optical, radio and dialup modems Carrier frequencies and multiplexing Time division multiplexing. Signalling across long distances.

By lani
(247 views)

Lecture 7

Lecture 7

Lecture 7. Power Divider Quadrature (90 o ) Hybrid Coupled Line Directional Couplers The 180 o Hybrid. Resistive Divider. a three-port power divider can be matched at all ports using lumped resistors consider the circuit diagram below:. Resistive Divider.

By babu
(497 views)

BRADLEY UNIVERSITY Department of Electrical and Computer Engineering Sr. Capstone Project Advisor: Dr. Anakwa Student: P

BRADLEY UNIVERSITY Department of Electrical and Computer Engineering Sr. Capstone Project Advisor: Dr. Anakwa Student: P

BRADLEY UNIVERSITY Department of Electrical and Computer Engineering Sr. Capstone Project Advisor: Dr. Anakwa Student: Paul Friend. Overview: Background Information Halbach Array Inductrack Sensors Propulsion Methods. Controls Physical Design Theories Parts and Equipment Schedule

By kyrie
(189 views)

Environmental Noise

Environmental Noise

Environmental Noise. Architectural Acoustics II March 17, 2008. Outline. Barriers Basic insertion loss Location relative to S and R Edge geometry Source and receiver conditions Close vs. far Moving vs. stationary Distance effects Ground cover Grazing incidence Temperature inversions

By aulii
(136 views)

Lesson 14: Introduction to AC and Sinusoids

Lesson 14: Introduction to AC and Sinusoids

Lesson 14: Introduction to AC and Sinusoids. Learning Objectives. Compare AC and DC voltage and current sources as defined by voltage polarity, current direction and magnitude over time.

By lieu
(166 views)

How Television Works?

How Television Works?

How Television Works?. “A Simplified Viewpoint??”. From Studio to Viewer. Television content is developed in a studio from a variety of sources Live televised events Pre-recorded events Combination of both. How the image makes it into your living room…. The Camera Imaging sensor

By rene
(382 views)

Chapter 6 – Graphs and Inverses of the Trigonometric Functions

Chapter 6 – Graphs and Inverses of the Trigonometric Functions

Chapter 6 – Graphs and Inverses of the Trigonometric Functions. 6.1 Graphs of Trigonometric Functions. First as a class let’s graph y = sin x and y = cos x. y = tan x.

By benjamin
(287 views)

Digital Communications Basics Dan M. Goebel 4/23/2002

Digital Communications Basics Dan M. Goebel 4/23/2002

Digital Communications Basics Dan M. Goebel 4/23/2002. Digital Communications System Block Diagram. From: B.Sklar Digital Communications , Prentice Hall, NJ 2001. Digital “Bandpass” Modulation. PSK. FSK. ASK. APK/QAM.

By rob
(602 views)

ADSL vs CABLE

ADSL vs CABLE

ADSL vs CABLE. This project is a direct comparison between Mpowered’s ADSL modem and EastLink’s Cable modem. Robert Allen Chris Angione Micheal Hunsley Jeffery Learning. Mpowered PC. Advertised: 8 Mbps down stream and 2 Mbps up stream.

By jason
(349 views)

Elements of a wireless network

Elements of a wireless network

wireless hosts laptop, PDA, IP phone run applications may be stationary (non-mobile) or mobile wireless does not always mean mobility. network infrastructure. Elements of a wireless network. base station typically connected to wired network

By valentino
(317 views)

Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)

Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)

d oc.: IEEE 802.15-16- 0015 -02-007a. Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: Kookmin University PHY sub-proposal for ISC using Dimmable Spatial M-PSK (DSM-PSK) Date Submitted: January 2016

By meghana
(126 views)

Bose-Einstein condensation in relativistic quasi-chemical equilibrium system --- from color superconductivity to diqua

Bose-Einstein condensation in relativistic quasi-chemical equilibrium system --- from color superconductivity to diqua

Bose-Einstein condensation in relativistic quasi-chemical equilibrium system --- from color superconductivity to diquark BEC ----. Nakano, Eiji (NTU). Contents: . QCD phase diagram Introduction to Color superconductivity (CSC)

By albert
(185 views)

The State of Laser Scanning: Past, Present and What Lies Ahead

The State of Laser Scanning: Past, Present and What Lies Ahead

Please insert a picture (Insert, Picture, from file). Size according to grey field (10 cm x 25.4 cm). Scale picture: highlight, pull corner point Cut picture: highlight, choose the cutting icon from the picture tool bar, click on a pagepoint and cut.

By toril
(110 views)

Chapter 25

Chapter 25

Chapter 25. Waves and Particles Midterm 4 UTC 1.132   . Wave Phenomena. Interference Diffraction Reflection. Wave Description. – wavelength: distance between crests (meters) T – period: the time between crests passing fixed location (seconds)

By duante
(141 views)

JT65-HF

JT65-HF

JT65-HF. Presented by Al Mecozzi WA8LBZ. IN THE BEGINNING THERE WAS WSJT. BACKGROUND Joe Taylor, K1JT, developed a suite of open-source programs designed for weak-signal digital communication by amateur radio. The programs are WSJT, MAP65, WSPR and SimJT.

By werner
(524 views)

Chapter 16 Oscillators

Chapter 16 Oscillators

Chapter 16 Oscillators. Objectives. Describe the basic concept of an oscillator. Discuss the basic principles of operation of an oscillator. Analyze the operation of RC and LC feedback oscillators. Describe the operation of the basic relaxation oscillator circuits.

By hilde
(380 views)

Tribology Lab

Tribology Lab

ME 4053. Tribology Lab. Objectives : Characterize elastohydrodynamic (EHD) lubrication using an optical technique. The study involves: Measurement of the lubricating film thickness as a function of: rolling velocity normal load

By marika
(314 views)

Shaping Laser Pulses

Shaping Laser Pulses

Shaping Laser Pulses. by Emily Collier Kansas State University August 2, 2007. Outline. Motivation Experimental Set-Up Theory behind the set-up Results Acknowledgements. Motivation. Attosecond pulses could be used to study time-dependence of atomic dynamics.

By tommy
(136 views)

The Quantum many-body problem:

The Quantum many-body problem:

The Quantum many-body problem:. Less is more and more is different. Jorn Mossel University of Amsterdam, ITFA. Supervisor: Jean- Sébastien Caux. Talk outline. Introduction More is different Less is more Spin chain Heisenberg model Exact solutions with the Bethe Ansatz

By luigi
(333 views)

Sine & Cosine Graphs

Sine & Cosine Graphs

Sine & Cosine Graphs. By: Taylor Pulchinski Daniel Overfelt Whitley Lubeck. http://www.youtube.com/watch?v=9rsJF6lqxao. Equations. y = a sin (bx-h)+ k y = a cos (bx-h)+k a = Amplitude (height of the wave) 2( )/b = Period (time it take to complete one trip around)

By peigi
(159 views)

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