off and the police will be alerted immediately. The transmitter section continuously transmits IR rays which are received by the receiver section. The received signal is further amplified and given to the PLL section‚ where its frequency is locked to the transmitted frequency. When the IR signal is interrupted‚ the microcontroller starts working as per the program burnt into the EPROM and control the siren‚ telephone and cassette player via the respective relays. CONTENTS: Chapter Chapter: 1. Introduction
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Consider two ground-based radio stations located at a set distance from each other‚ say 300 km so that they are exactly 1 ms apart at light speed. Both stations are equipped with identical transmitters set to broadcast a short pulse at a specific frequency. One of these stations‚ called the "secondary" is also equipped with a radio receiver. When this receiver hears the signal from the other station‚ referred to as the "master"‚ it triggers its own broadcast. The master station can then broadcast any
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statistics do not allow us to reach to the conclusions beyond the data we have analyzed regarding any hypotheses we might have made. They simply describe our data. Measures of Central Tendency: these are ways of describing the central position of a frequency distribution for a group of data through: Mode: Sum of all observations divided by the number of observations. Median: Middle of data. Use with ordinal data or when data contains outliners. Mean: Most frequent observation. Use with nominal data
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PTU/BOS/EC/101/08-05-2004/BATCH 2004 Punjab Technical University‚ Jalandhar B.Tech. Electronics & Communication Engg. Study scheme 3rd Semester Course code AM-201 EE-201 EC-201 EC-203 Course Title Applied MathematicsIII Network Analysis & Synthesis Electronics Devices & Circuits Electronic Measurement & Instrumentation L 4 3 3 3 T 1 2 1 1 P 0 0 0 0 Int. 40 40 40 40 Ext. 60 60 60 60 TOTAL 100 100 100 100 Object Oriented CS –252 Programming using C++ Lab.-I (Electronic EC-205 Devices & Networks)
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DATA ORGANIZATION‚ PRESENTATION AND ANALYSIS Research Methods 1 Data Organization and Presentation To make interpretation and analysis of gathered data easier‚ data should be organized and presented properly. The usual methods used by researchers are textual‚ tables‚ graphs and charts. 1.1 Textual Data can be presented in the form of texts‚ phrases or paragraphs. It involves enumerating important characteristics‚ emphasizing significant figures and identifying important features of
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History of CFRB CFRB is Toronto’s oldest and longest running radio station. It was founded by Roger’s communication giant Ted Roger’s in the year 1927‚ and is still going strong to this date. Even through many programming changes‚ countless numbers of different hosts‚ and several different formats‚ they have still managed to remain a powerhouse in the Toronto market. The history of the station is very interesting‚ and is the reason radio is the way it is to this date. In the year 1925‚ the
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01μF capacitor in a series and prepare a function generator and a oscilloscope. Next‚ we measure the each voltage by changing the frequency (Start from 10‚ 20‚30‚50‚70Hz). The measurement repeats for higher powers of ten‚ from the 100s to the high 10‚000s. We make a graph of Vc vs omega and Extend straight lines from the two regions to establish the corner frequency. Last‚ we compare it with predicted corner frequency.Repeat this experiment with a second capacitor. RL High Pass Filter
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Exercise 1 (10 points) Twenty-five randomly selected students were asked the number of movies they watched the previous week. The results are as follows: # of movies Frequency Relative Frequency Cumulative Relative Frequency 0 5 1 9 2 6 3 4 4 1 Table 1.1 (Hint: This is a frequency table. Read the section in the textbook!) a. Find the sample mean x = 1.48 b. Find the sample standard deviation‚ s = 1.12 c. Complete the columns of the chart. = d. Find
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study‚ a student bought 3 bags of colored candy from stores and counted each color. The average number of each color in the three bags was distributed as shown. Color | Frequency | Brown | 556 | Yellow | 118 | Red | 344 | Orange | 57 | Green | 87 | Blue | 34 | a) obtain a relative – frequency distribution College
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productivity and responsiveness by allowing mobile teams to share business and customer information instantly. Through most of its history‚ two-way radio has meant analog voice — the representation of sound waves as either amplitude modulated (AM) or frequency modulated (FM) radio waves. In fact‚ this is one of the last areas of professional communications to be touched by digital technology. But that’s changing‚ very quickly‚ for very good reasons. Modulating the voice into digital signals‚ rather than
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