ログイン

Wire and Wireless Module 2

Wire and Wireless Module 2
44問 • 2年前
  • Annaricha Mae Dalag
  • 通報

    問題一覧

  • 1

    Frequency starting from is known as extremely low frequency or ELF range in electromagnetic spectrum.

    3Hz to 30 Hz

  • 2

    This range is highly vulnerable to disturbance and easily gets distorted by atmospheric changes. It is hard to design a system in this rage is challenging because of the larger wavelengths required long antennas which are practically impossible to achieve. Scientists use this frequency band in seismic studies to understand natural activities in earth’s atmosphere.

    Extremely Low Frequency

  • 3

    Very low frequency is the starting range of RF and practical radio transmission system which span from ____________

    3 KHz to 30 KHz.

  • 4

    design and implementation of the antenna system is extremely complicated due to the wavelength. It has been using in submarines and still used in time radio station which synchronizes clock signals between two remote locations.

    Very Low Frequency

  • 5

    Low frequency is in the range of _________

    30 KHz to 300 KHz.

  • 6

    One of the important properties of LF signals is that it will get reflected by earth’s ___________ and thus it is suitable for long distance communication. Since it’s long wavelength and less attenuation from big terrains like mountains, it is generally called _______________

    ionosphere ground waves

  • 7

    are used by amateur radio operators; it is one of the most important sources of information transfer when other kind of communication sources fails during some situation like natural disasters. Other areas are military applications like submarines, RFID tags in near field communication and some low frequency radio broadcasting.

    Low Frequency

  • 8

    _____________ was one of the most popular frequency bands since the beginning of wireless radio transmission in the early nineteenth century. Operates in the range of _____________

    Medium frequency 300 KHz to 3 MHz.

  • 9

    Design of transmitters, receivers and antenna are relatively less complex than other high frequency transmission bands. Has been widely used in AM radio transmission, navigation systems for ships and aircraft, emergency distress signals, cost guards and other experimental applications.

    Medium Frequency

  • 10

    High frequency signals ranges between ___________. This frequency band is also known as ___________.

    3 MHz and 30 Mhz. short wave

  • 11

    It also gets reflected by earth’s ionosphere and it is one of the suitable band for long distance communication. Mostly used by aviation industry, near field communication (NFC), government systems, amateur radio operators and weather broadcasting stations.

    High Frequency band

  • 12

    Is one of the most commonly used bands which has an operating range from __________.

    Very High Frequency 30 MHz to 300 MHz

  • 13

    Is widely used in analog TV broadcasting since it has started few decades back. FM radio broadcasting at ______________ operates in VHF frequency band. Air traffic controllers and airline pilots using frequency between ___________ to communicate.

    Very High Frequency 88 MHz to 108 MHz 118 MHz to 137 MHz

  • 14

    Another uses includes private and business radio station, medical equipment (magnetic resonance imaging), amateur radio and military applications. It usually affected by big terrains but suitable for short distance communication.

    Very High Frequency

  • 15

    is the most important frequency bands for modern wireless communication systems. It begins from ___________ and extremely complicated to design and implement the system.

    Ultra high frequency 300 MHz to 3 GHz

  • 16

    It is used in GPS navigation systems, satellites, pagers, Wi-Fi, Bluetooth, television broadcasting, and most importantly GSM, CDMA and LTE mobile transmission.

    Ultra High Frequency

  • 17

    Super high frequency is in the range of ____________. It can only operate in ____________ since any obstruction in between the transmitter and receiving station will break the communication.

    3 GHz to 30 GHz line-of-sight path

  • 18

    It is commonly used in point-to-point communication, satellite systems, digital TV broadcasting in Ku band (DTH service – direct to home), Wi-Fi (5GHz channel), microwave ovens and mobile networks.

    Super High Frequency

  • 19

    System design is extremely hard in _______ due to its smaller wavelength and complexity.

    SHF band

  • 20

    is the highest in RF frequency spectrum which range between 30 GHz and 300 GHz.

    Extremely High Frequency

  • 21

    only used in advanced communication systems due to its complex nature and line of sight requirement. Used in radio astronomy and remote sensing (weather analysis). It is suggested to use for high-speed internet systems like 5G technology for future transmission networks due to large bandwidth availability

    Extremely High Frequency

  • 22

    Advantages of Wireless Communication

    Convenience Mobility Scalability Cost

  • 23

    Disadvantages of Wireless Communication

    Security Interference Range Reliability

  • 24

    is a device that converts electrical signals into radio waves and vice versa. It is used in communication systems to transmit and receive radio signals.

    Antenna

  • 25

    are used in a wide variety of applications, including radio broadcasting, television broadcasting, cellular phone networks, and satellite communication.

    Antenna

  • 26

    There are many different types of antennas, each with its own unique properties. Some of the most common types of antennas include:

    Monopole Dipole Yagi-Uda Loop Bowtie Parabolic

  • 27

    is a half-dipole antenna, meaning that it consists of a single conductor, such as a metal rod, mounted over a ground plane.

    Monopole Antenna

  • 28

    are omnidirectional, meaning that they radiate and receive signals in all directions.

    Monopole Antenna

  • 29

    are commonly used in cellular phone antennas, car radios, and AM/FM broadcast antennas.

    Monopole antennas

  • 30

    Is the simplest type of antenna. It consists of two parallel conductors of equal length, separated by a small distance.

    dipole antenna

  • 31

    are bidirectional, meaning that they radiate and receive signals in two opposite directions.

    Dipole antennas

  • 32

    are commonly used in television antennas, Wi-Fi antennas, and amateur radio antennas.

    Dipole antennas

  • 33

    Yagi-Uda antenna, also known as a "________" or a "__________" is a type of directional antenna.

    Yagi antenna Fishbone antenna

  • 34

    It consists of a dipole antenna and a number of parasitic elements, such as directors and reflectors. Can be used to focus radio waves in a specific direction.

    Yagi-Uda Antenna

  • 35

    are commonly used in television antennas, microwave relay systems, and satellite communication systems.

    Yagi antennas

  • 36

    A _________ is a type of antenna that consists of a loop of wire. It is omnidirectional, but they have a lower gain than dipole antennas

    loop antenna

  • 37

    are less susceptible to interference from other radio signals, making them ideal for use in noisy environments.

    Loop antennas

  • 38

    are commonly used in AM/FM radio antennas, RFID antennas, and aircraft navigation antennas.

    Loop antennas

  • 39

    A __________ is a type of antenna that consists of two triangular metal plates arranged in a bowtie shape.

    bowtie antenna

  • 40

    are bidirectional and have a higher gain than dipole antennas. Are also less susceptible to interference from other radio signals.

    Bowtie antennas

  • 41

    are commonly used in television antennas, satellite communication systems, and radar systems.

    Bowtie antennas

  • 42

    A is a type of highly directional antenna.

    parabolic antenna

  • 43

    It consists of a parabolic dish reflector and a feed antenna. The parabolic dish reflector reflects radio waves towards the feed antenna, which focuses the radio waves in a specific direction.

    Parabolic Antenna

  • 44

    are commonly used in satellite communication systems, radar systems, and microwave relay systems.

    Parabolic antennas

  • MICROPROCESSOR MIDTERM MODULE 1

    MICROPROCESSOR MIDTERM MODULE 1

    Annaricha Mae Dalag · 28問 · 2年前

    MICROPROCESSOR MIDTERM MODULE 1

    MICROPROCESSOR MIDTERM MODULE 1

    28問 • 2年前
    Annaricha Mae Dalag

    Microprocessor 2 Midterm

    Microprocessor 2 Midterm

    Annaricha Mae Dalag · 26問 · 2年前

    Microprocessor 2 Midterm

    Microprocessor 2 Midterm

    26問 • 2年前
    Annaricha Mae Dalag

    PAGE 1

    PAGE 1

    Annaricha Mae Dalag · 14問 · 2年前

    PAGE 1

    PAGE 1

    14問 • 2年前
    Annaricha Mae Dalag

    PAGE 2

    PAGE 2

    Annaricha Mae Dalag · 8問 · 2年前

    PAGE 2

    PAGE 2

    8問 • 2年前
    Annaricha Mae Dalag

    PAGE 3

    PAGE 3

    Annaricha Mae Dalag · 18問 · 2年前

    PAGE 3

    PAGE 3

    18問 • 2年前
    Annaricha Mae Dalag

    PAGE 4

    PAGE 4

    Annaricha Mae Dalag · 14問 · 2年前

    PAGE 4

    PAGE 4

    14問 • 2年前
    Annaricha Mae Dalag

    PAGE 5

    PAGE 5

    Annaricha Mae Dalag · 16問 · 2年前

    PAGE 5

    PAGE 5

    16問 • 2年前
    Annaricha Mae Dalag

    PAGE 6

    PAGE 6

    Annaricha Mae Dalag · 11問 · 2年前

    PAGE 6

    PAGE 6

    11問 • 2年前
    Annaricha Mae Dalag

    ETHICS 1 and 2

    ETHICS 1 and 2

    Annaricha Mae Dalag · 38問 · 2年前

    ETHICS 1 and 2

    ETHICS 1 and 2

    38問 • 2年前
    Annaricha Mae Dalag

    Ethics 3-4

    Ethics 3-4

    Annaricha Mae Dalag · 28問 · 2年前

    Ethics 3-4

    Ethics 3-4

    28問 • 2年前
    Annaricha Mae Dalag

    Ethics last

    Ethics last

    Annaricha Mae Dalag · 16問 · 2年前

    Ethics last

    Ethics last

    16問 • 2年前
    Annaricha Mae Dalag

    Module 1

    Module 1

    Annaricha Mae Dalag · 30問 · 2年前

    Module 1

    Module 1

    30問 • 2年前
    Annaricha Mae Dalag

    Module 2

    Module 2

    Annaricha Mae Dalag · 31問 · 2年前

    Module 2

    Module 2

    31問 • 2年前
    Annaricha Mae Dalag

    Synchro

    Synchro

    Annaricha Mae Dalag · 27問 · 2年前

    Synchro

    Synchro

    27問 • 2年前
    Annaricha Mae Dalag

    Module 1

    Module 1

    Annaricha Mae Dalag · 37問 · 2年前

    Module 1

    Module 1

    37問 • 2年前
    Annaricha Mae Dalag

    module1.1

    module1.1

    Annaricha Mae Dalag · 14問 · 2年前

    module1.1

    module1.1

    14問 • 2年前
    Annaricha Mae Dalag

    module 1

    module 1

    Annaricha Mae Dalag · 43問 · 2年前

    module 1

    module 1

    43問 • 2年前
    Annaricha Mae Dalag

    Module 1

    Module 1

    Annaricha Mae Dalag · 36問 · 2年前

    Module 1

    Module 1

    36問 • 2年前
    Annaricha Mae Dalag

    Wire and Wireless Midterm

    Wire and Wireless Midterm

    Annaricha Mae Dalag · 51問 · 2年前

    Wire and Wireless Midterm

    Wire and Wireless Midterm

    51問 • 2年前
    Annaricha Mae Dalag

    ELECTRO

    ELECTRO

    Annaricha Mae Dalag · 39問 · 2年前

    ELECTRO

    ELECTRO

    39問 • 2年前
    Annaricha Mae Dalag

    ELECTRO MODULE 2

    ELECTRO MODULE 2

    Annaricha Mae Dalag · 33問 · 2年前

    ELECTRO MODULE 2

    ELECTRO MODULE 2

    33問 • 2年前
    Annaricha Mae Dalag

    PURPOSIVE COMM M1

    PURPOSIVE COMM M1

    Annaricha Mae Dalag · 39問 · 2年前

    PURPOSIVE COMM M1

    PURPOSIVE COMM M1

    39問 • 2年前
    Annaricha Mae Dalag

    Data comms midterm

    Data comms midterm

    Annaricha Mae Dalag · 20問 · 2年前

    Data comms midterm

    Data comms midterm

    20問 • 2年前
    Annaricha Mae Dalag

    WWC

    WWC

    Annaricha Mae Dalag · 10問 · 2年前

    WWC

    WWC

    10問 • 2年前
    Annaricha Mae Dalag

    問題一覧

  • 1

    Frequency starting from is known as extremely low frequency or ELF range in electromagnetic spectrum.

    3Hz to 30 Hz

  • 2

    This range is highly vulnerable to disturbance and easily gets distorted by atmospheric changes. It is hard to design a system in this rage is challenging because of the larger wavelengths required long antennas which are practically impossible to achieve. Scientists use this frequency band in seismic studies to understand natural activities in earth’s atmosphere.

    Extremely Low Frequency

  • 3

    Very low frequency is the starting range of RF and practical radio transmission system which span from ____________

    3 KHz to 30 KHz.

  • 4

    design and implementation of the antenna system is extremely complicated due to the wavelength. It has been using in submarines and still used in time radio station which synchronizes clock signals between two remote locations.

    Very Low Frequency

  • 5

    Low frequency is in the range of _________

    30 KHz to 300 KHz.

  • 6

    One of the important properties of LF signals is that it will get reflected by earth’s ___________ and thus it is suitable for long distance communication. Since it’s long wavelength and less attenuation from big terrains like mountains, it is generally called _______________

    ionosphere ground waves

  • 7

    are used by amateur radio operators; it is one of the most important sources of information transfer when other kind of communication sources fails during some situation like natural disasters. Other areas are military applications like submarines, RFID tags in near field communication and some low frequency radio broadcasting.

    Low Frequency

  • 8

    _____________ was one of the most popular frequency bands since the beginning of wireless radio transmission in the early nineteenth century. Operates in the range of _____________

    Medium frequency 300 KHz to 3 MHz.

  • 9

    Design of transmitters, receivers and antenna are relatively less complex than other high frequency transmission bands. Has been widely used in AM radio transmission, navigation systems for ships and aircraft, emergency distress signals, cost guards and other experimental applications.

    Medium Frequency

  • 10

    High frequency signals ranges between ___________. This frequency band is also known as ___________.

    3 MHz and 30 Mhz. short wave

  • 11

    It also gets reflected by earth’s ionosphere and it is one of the suitable band for long distance communication. Mostly used by aviation industry, near field communication (NFC), government systems, amateur radio operators and weather broadcasting stations.

    High Frequency band

  • 12

    Is one of the most commonly used bands which has an operating range from __________.

    Very High Frequency 30 MHz to 300 MHz

  • 13

    Is widely used in analog TV broadcasting since it has started few decades back. FM radio broadcasting at ______________ operates in VHF frequency band. Air traffic controllers and airline pilots using frequency between ___________ to communicate.

    Very High Frequency 88 MHz to 108 MHz 118 MHz to 137 MHz

  • 14

    Another uses includes private and business radio station, medical equipment (magnetic resonance imaging), amateur radio and military applications. It usually affected by big terrains but suitable for short distance communication.

    Very High Frequency

  • 15

    is the most important frequency bands for modern wireless communication systems. It begins from ___________ and extremely complicated to design and implement the system.

    Ultra high frequency 300 MHz to 3 GHz

  • 16

    It is used in GPS navigation systems, satellites, pagers, Wi-Fi, Bluetooth, television broadcasting, and most importantly GSM, CDMA and LTE mobile transmission.

    Ultra High Frequency

  • 17

    Super high frequency is in the range of ____________. It can only operate in ____________ since any obstruction in between the transmitter and receiving station will break the communication.

    3 GHz to 30 GHz line-of-sight path

  • 18

    It is commonly used in point-to-point communication, satellite systems, digital TV broadcasting in Ku band (DTH service – direct to home), Wi-Fi (5GHz channel), microwave ovens and mobile networks.

    Super High Frequency

  • 19

    System design is extremely hard in _______ due to its smaller wavelength and complexity.

    SHF band

  • 20

    is the highest in RF frequency spectrum which range between 30 GHz and 300 GHz.

    Extremely High Frequency

  • 21

    only used in advanced communication systems due to its complex nature and line of sight requirement. Used in radio astronomy and remote sensing (weather analysis). It is suggested to use for high-speed internet systems like 5G technology for future transmission networks due to large bandwidth availability

    Extremely High Frequency

  • 22

    Advantages of Wireless Communication

    Convenience Mobility Scalability Cost

  • 23

    Disadvantages of Wireless Communication

    Security Interference Range Reliability

  • 24

    is a device that converts electrical signals into radio waves and vice versa. It is used in communication systems to transmit and receive radio signals.

    Antenna

  • 25

    are used in a wide variety of applications, including radio broadcasting, television broadcasting, cellular phone networks, and satellite communication.

    Antenna

  • 26

    There are many different types of antennas, each with its own unique properties. Some of the most common types of antennas include:

    Monopole Dipole Yagi-Uda Loop Bowtie Parabolic

  • 27

    is a half-dipole antenna, meaning that it consists of a single conductor, such as a metal rod, mounted over a ground plane.

    Monopole Antenna

  • 28

    are omnidirectional, meaning that they radiate and receive signals in all directions.

    Monopole Antenna

  • 29

    are commonly used in cellular phone antennas, car radios, and AM/FM broadcast antennas.

    Monopole antennas

  • 30

    Is the simplest type of antenna. It consists of two parallel conductors of equal length, separated by a small distance.

    dipole antenna

  • 31

    are bidirectional, meaning that they radiate and receive signals in two opposite directions.

    Dipole antennas

  • 32

    are commonly used in television antennas, Wi-Fi antennas, and amateur radio antennas.

    Dipole antennas

  • 33

    Yagi-Uda antenna, also known as a "________" or a "__________" is a type of directional antenna.

    Yagi antenna Fishbone antenna

  • 34

    It consists of a dipole antenna and a number of parasitic elements, such as directors and reflectors. Can be used to focus radio waves in a specific direction.

    Yagi-Uda Antenna

  • 35

    are commonly used in television antennas, microwave relay systems, and satellite communication systems.

    Yagi antennas

  • 36

    A _________ is a type of antenna that consists of a loop of wire. It is omnidirectional, but they have a lower gain than dipole antennas

    loop antenna

  • 37

    are less susceptible to interference from other radio signals, making them ideal for use in noisy environments.

    Loop antennas

  • 38

    are commonly used in AM/FM radio antennas, RFID antennas, and aircraft navigation antennas.

    Loop antennas

  • 39

    A __________ is a type of antenna that consists of two triangular metal plates arranged in a bowtie shape.

    bowtie antenna

  • 40

    are bidirectional and have a higher gain than dipole antennas. Are also less susceptible to interference from other radio signals.

    Bowtie antennas

  • 41

    are commonly used in television antennas, satellite communication systems, and radar systems.

    Bowtie antennas

  • 42

    A is a type of highly directional antenna.

    parabolic antenna

  • 43

    It consists of a parabolic dish reflector and a feed antenna. The parabolic dish reflector reflects radio waves towards the feed antenna, which focuses the radio waves in a specific direction.

    Parabolic Antenna

  • 44

    are commonly used in satellite communication systems, radar systems, and microwave relay systems.

    Parabolic antennas