Frequency modulation Study guides, Class notes & Summaries

What reason for modulation involves modulating low frequency signals for transmission over long distances? correct answer: Ease of radiation. What are the three general categories used to produce modulation in radio frequency (RF) transmission today? correct answer: Amplitude, frequency, and phase. When the modulating signal and carrier signal are combined within a modulator, the output signal contains a/an correct answer: carrier, upper sideband, and lower sideband. If a carrier fre...

Field Tech 1 Exam Questions and Answers Latest Updated 2023/2024 (Graded). Upstream frequency ranges between 5Mhz and 42Mhz Downstream frequency ranges Between 50MHz 860MHz Upstream frequency ranges 5MHz and 42 MHz A 6 MHz downstream channel can hold 2-4 hd channels or 8-12 standard definition channels Egress When a signal leaks out of a cable Ingress when a signal leaks into a cable Field technicians are responsible from The tap to the CPE (customer premise equipement) Field Tech 1 Exam ...

1. Communication is the process of exchanging information. TRUE 2. Blooms: 1. Remember Chapter: 01 Introduction to Electronic Communication Difficulty: Easy Section: 01.01 The Significance of Human Communication Subtopic: The Significance of Human Communication Topic: Introduction to Electronic Communication All electronic communication systems have a transmitter, a communication channel or medium, and a receiver. TRUE ...

Progression: Field Tech II - III Conventional Questions and Answers Latest Updated 2024/2025 Graded A+. What is one reason why broadband cable operators install fiber-optic cable in stages instead of changing the infrastructure all at once? - Changing the infrastructure all at once would cause too many service disruptions. What is the difference between the fiber-to-the-node (FTTN) and fiber-to-the-curb (FTTC) topologies? - An FTTC is allowed a smaller number of RF amplifiers between the opt...

digital VoIP phones carry _________ data over the Internet. WirelessHD _____________ can transfer video and sound at 7 Gbps and higher. 10 UWB WirelessHD and WiGig have a range of up to ___ meters. GPS _____ technology is implemented by roadside assistance services to link a vehicle and driver to a central service center. 4G _____ technology uses 100% digital transmission for voice and data. AP A(n) ____ connects wireless devices to the wired LAN. ...

NCTI - Installer Book 2023/2024 EXAM Which of the following will strengthen signals as they move farther away from the headend through the trunk express system? - ANSWER B) Distribution amplifiers. Which of the following describes a carrier wave? - ANSWER B) A wave with a much higher frequency than the input signal. Which of the following desc...

Field Tech 1 Exam Questions and Answers Latest 2023/2024 (100% Pass). Upstream frequency ranges between 5Mhz and 42Mhz Downstream frequency ranges Between 50MHz 860MHz Upstream frequency ranges 5MHz and 42 MHz A 6 MHz downstream channel can hold 2-4 hd channels or 8-12 standard definition channels Egress When a signal leaks out of a cable Ingress when a signal leaks into a cable Field technicians are responsible from The tap to the CPE (customer premise equipement) Field Tech 1 Exam Quest...

Progression: Field Tech II - III Conventional Exam Questions and Answers Latest Updated 2024/2025 Graded A+. What is the difference between the fiber-to-the-node (FTTN) and fiber-to-the-curb (FTTC) topologies? - An FTTC is allowed a smaller number of RF amplifiers between the optical fiber and the customer premises. Which of these components is used in a passive optical network (PON)? - Optical splitters. Which type of star topology used in a passive optical network (PON) places the PON spli...

NCTI - Installer Book 2023/2024 EXAM. Which of the following will strengthen signals as they move farther away from the headend through the trunk express system? B) Distribution amplifiers. Which of the following describes a carrier wave? B) A wave with a much higher frequency than the input signal. Which of the following describes modulation? B) The reshaping of a carrier wave to include information contained by an input signal. Which of the following is the symbol for power? W = watt...

Broadband Digital Installer Test What information is typically stored in a signal level meter's (SLM) channel plan? - The SLM channel plan typically includes the channel number, center frequency, channel bandwidth, modulation type, and symbol rate. What advantages are there to performing automated measurements with an SLM? - Automated measurements help ensure consistent measurement practices among different technicians. What parameters of the RF carrier should be measured when diag...