Electrical Wiring Residential
18th Edition
ISBN: 9781285170954
Author: Ray C. Mullin, Phil Simmons
Publisher: Cengage Learning
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Chapter 25.1, Problem 7R
To determine
Find the diameter of antenna that is used in digital satellite.
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12.a. The highest frequency in the FM TV band is approximatelyA. 2 GHz.B. 1 GHz.C. 200 MHz.D. 300 MHz.112.b. Light pulses received at one end of the fiber must be converted into ________ pulses.A. digital electronicB. analog electronicC. all of theseD. digital light
. Following equipment and components are available:
1 No. – Circulator
1 No. - Cavity type Frequency meter
1 No. - Directional coupler
1 No. – Power meter
2 Nos. – Match loads
In a satellite communication station, the same antenna is used for signal transmission and -reception.
(a) Using necessary devices given above explain how the transmitter (used for Uplink) and the receiver (used in the Downlink) should be connected to the antenna. Draw a block diagram showing the connection of various equipment / components.
(b) It is necessary to measure the transmitting frequency using the components / equipment given above.
(i) Draw a block diagram to show the connection of measuring equipment and various components.
(ii) Explain how you would measure the transmitting frequency. Method (all the steps ) of taking readings must be accurately explained.
(c) Number the ports (port 1, port 2 … etc.) of the directional coupler and the circulator on the block diagrams given in (a)…
3. The __________ is, in essence, a switch which closes for a brief period oftime and then open, closing and opening many times a second.
4. The ___________ is a way to tell how many frequency components are neededto make up a signal.
Chapter 25 Solutions
Electrical Wiring Residential
Ch. 25.1 - How many television outlets are installed in this...Ch. 25.1 - Which type of television cable is commonly used...Ch. 25.1 - What determines the design of the faceplates used?...Ch. 25.1 - Prob. 4RCh. 25.1 - From a cost standpoint, which system is more...Ch. 25.1 - Prob. 6RCh. 25.1 - Prob. 7RCh. 25.1 - Prob. 8RCh. 25.1 - Which article of the Code references the...Ch. 25.1 - It is generally understood that grounding and...
Ch. 25.1 - Prob. 11RCh. 25.1 - Prob. 12RCh. 25.1 - Which section of the Code prohibits supporting...Ch. 25.1 - When hooking up one CATV cable and another cable...Ch. 25.1 - Prob. 15RCh. 25.1 - Prob. 16RCh. 25.2 - How many locations are provided for telephones in...Ch. 25.2 - At what height are the telephone outlets in this...Ch. 25.2 - Sketch the symbol for a telephone outlet.Ch. 25.2 - Is the telephone system regulated by the NEC?...Ch. 25.2 - a. Who is to furnish the outlet boxes required at...Ch. 25.2 - Who is to furnish the telephones? _____Ch. 25.2 - Who does the actual installation of the telephone...Ch. 25.2 - How are the telephone cables concealed in this...Ch. 25.2 - Prob. 9RCh. 25.2 - What are the colors contained in a four-conductor...Ch. 25.2 - Itemize the code rule for the installation of...Ch. 25.2 - If finger contact were made between the red...Ch. 25.2 - What section of the Code prohibits supporting...Ch. 25.2 - The term cross-talk is used to define the hearing...Ch. 25.2 - Which section of the Code prohibits telephone...Ch. 25.3 - Prob. 1RCh. 25.3 - What style of chime is used in this residence?...Ch. 25.3 - a. How many solenoids are contained in a 2-tone...Ch. 25.3 - Explain briefly how two notes are sounded by...Ch. 25.3 - a. Sketch the symbol for a push button....Ch. 25.3 - Prob. 6RCh. 25.3 - What is the maximum volt-ampere rating of...Ch. 25.3 - What two types of chime transformers for Class 2...Ch. 25.3 - Is the extension chime connected with the front...Ch. 25.3 - a. What change in equipment may be necessary when...Ch. 25.3 - What type of insulation is usually found on...Ch. 25.3 - Prob. 13RCh. 25.3 - a. How many wires are run between the front hall...Ch. 25.3 - Why is it recommended that the low-voltage...Ch. 25.3 - a. Is it permissible to install low-voltage Class...Ch. 25.3 - a. Where is the transformer in the residence...Ch. 25.3 - a. How many feet of 2-conductor bell wire cable...Ch. 25.3 - Prob. 19RCh. 25.3 - Prob. 20RCh. 25.3 - What section of the Code prohibits supporting fire...Ch. 25.3 - Prob. 22RCh. 25.3 - What does the term Wi-Fi stand for? _____Ch. 25.3 - A Wi-Fi system is (required) (optional). (Circle...
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