Communications - Electronics Journeyman CDC 2EX5X Test 3

A power reading that uses the abbreviation dBm indicates the ratio of decibels relative to the 1 milliwatt standard. This means that the power level is measured and expressed in decibels (dB) compared to the reference power level of 1 milliwatt. The dBm unit is commonly used in telecommunications and signal strength measurements to provide a standardized and easily interpretable representation of power levels.

The first label is placed within 12 inches and marked “TO” to indicate the destination of the cable. The second label is placed within two inches of the first label and marked “FROM” to indicate the source of the cable. This labeling system helps to identify the direction of the cable and ensure proper connectivity.

Synthetic aperture radar (SAR) is the correct answer because it allows the Predator UAV to image targets through clouds, camouflage netting, and other non-metallic coverings. SAR uses radio waves to create high-resolution images by measuring the time it takes for the waves to bounce back after hitting the target. This technology is not affected by weather conditions or camouflage, making it an effective sensor system for imaging targets in various scenarios.

The correct answer is "Managerial." The managerial evaluation program provides the unit commander, chief of maintenance, and supervisors with factual and objective assessments of a section's ability to meet its mission requirements. This evaluation focuses on the management aspect of communication standardization and ensures that the section is effectively meeting its goals and objectives.

Vertical redundancy check (VRC) and longitudinal redundancy check (LRC) are two error detection methods that, when used together, are 98% effective in detecting errors. VRC involves adding a parity bit to each character or byte of data to check for errors. LRC involves adding a parity bit to each block of data to check for errors. By using both methods, errors can be detected with a high level of accuracy, making this combination highly effective in error detection.

Total internal reflection occurs when light travels from a medium with a higher refractive index to a medium with a lower refractive index, and the angle of incidence is greater than the critical angle. In this case, instead of refracting, the light is completely reflected back into the medium it originated from. This phenomenon is known as total internal reflection.

The correct answer is "Auto" because in this mode, the oscilloscope continuously triggers and displays a trace on the screen regardless of whether there is a signal output or not. It automatically adjusts the triggering parameters to maintain a stable display, making it useful for capturing intermittent or low-amplitude signals.

The 25-pin connectors are designed to simplify the connection of test equipment to the modem under test. Additionally, they are designed to carry the necessary signaling and handshake signals for modem operations. This means that the connectors not only make it easier to connect the equipment but also enable the necessary communication between the test equipment and the modem for proper modem operations.

Backscatter refers to the power that is reflected back to an optical source in the time domain reflectometer.

It is important to mark underground facilities when the earth's surface is moved, removed, or displaced in order to minimize damage. By marking these facilities, such as gas lines or electrical cables, construction workers or excavators can avoid accidentally hitting or damaging them, which could lead to dangerous situations, service disruptions, or costly repairs. Marking underground facilities helps ensure the safety of both workers and the public, and prevents unnecessary damage to infrastructure.

The equipment processing clear text, classified information should be designated as RED because clear text refers to unencrypted information, while classified information refers to sensitive and confidential data that requires protection. Therefore, this equipment needs to handle and secure classified information that is transmitted in clear text format.

The correct answer is Theater Deployable Communications. This system is a state-of-the-art ground-to-ground communications infrastructure that is designed to exchange secure and non-secure voice, data, and video communications. It can utilize different resources such as line of sight, satellite, or hard-wired connections to facilitate communication in various environments.

The Air Tasking Order is the lead planning document that provides specific instructions for military operations. It includes details such as call signs, targets, sorties, controlling agencies, and general instructions. This document is crucial for coordinating and executing air operations effectively and efficiently. It ensures that all involved parties have clear instructions and guidelines to follow, enabling them to carry out their tasks in a coordinated manner.

The host data base operations center is responsible for the operation of the integrated maintenance data system. This center manages and maintains the main database that stores all the maintenance data. They ensure the system is running smoothly, perform regular backups, and handle any technical issues that may arise. They are crucial in ensuring the integrity and availability of the maintenance data for all users of the system.

In a 4K record length on a digital storage oscilloscope, you can view 1000 samples at one time. The term "4K" refers to the number of samples that can be stored in the oscilloscope's memory. Since "K" represents 1000, a 4K record length means that the oscilloscope can store 4000 samples. However, the question asks how many samples can be viewed at one time, which is half of the total record length. Therefore, you can view 1000 samples at one time on a 4K record length oscilloscope.

The correct answer is Nickel cadmium. Nickel cadmium (NiCd) batteries are prone to the "memory effect." This phenomenon occurs when a battery is not fully discharged before recharging, causing the battery to "remember" the reduced capacity and only provide power up to that level in future uses. This can result in a decrease in overall battery life and performance.

Quality assurance is responsible for validating the use of effective training programs, proven maintenance techniques, safety procedures, supply discipline, security procedures, and good housekeeping standards. They ensure that all maintenance staff are properly trained and following the correct procedures to maintain quality and safety standards. They also monitor and evaluate the effectiveness of these programs and techniques to continuously improve maintenance operations.

A current probe is a type of test probe that does not need to make physical contact with the circuit under test. Instead, it uses magnetic induction to measure the current flowing through a conductor without interrupting the circuit. This is particularly useful when measuring high-frequency or high-voltage circuits, as it eliminates the need for direct electrical contact, reducing the risk of damage or interference.

Quality Assurance primarily uses AFMQCCs. AFMQCCs stands for Air Force Maintenance Quality Control Centers, which are responsible for ensuring that maintenance operations are conducted in accordance with established standards and procedures. Quality Assurance personnel are responsible for monitoring and evaluating the quality of maintenance activities to ensure compliance with regulations and standards. They use AFMQCCs to conduct inspections, audits, and assessments to identify any deficiencies and recommend corrective actions to improve the overall quality of maintenance operations.

The single manager is responsible for the equipment's logistics cycle management and operational safety, suitability, and effectiveness. This means that they oversee the entire process of managing and maintaining the equipment, ensuring that it is safe, suitable, and effective for its intended use. They have the authority and accountability to make decisions and take actions to ensure that the equipment is properly managed and maintained throughout its lifecycle.

Sampling is the part of the pulse code modulation process that converts a continuous time signal into a discrete time signal. In this process, the continuous signal is sampled at regular intervals, and each sample represents the amplitude of the signal at that particular time. By converting the continuous signal into a discrete time signal, it becomes easier to process and transmit the signal digitally. Sampling is essential in pulse code modulation as it allows for the accurate representation and reconstruction of the original signal.

PMEL provides the TMDE Master ID listing every three months. This means that the listing is updated and released every quarter of the year. This frequency allows for regular updates and ensures that the information provided remains current and accurate. It also allows users to have access to the most recent TMDE Master ID listing on a regular basis, enabling them to make informed decisions and updates to their own records.

The Radio Frequency Module is the correct answer because it provides a wireless line-of-site microwave for extending modules more than 10 kilometers from the main node. This module is specifically designed to transmit and receive radio signals, allowing for long-range communication between nodes in a network. It is an essential component for expanding network coverage over large distances without the need for physical cables or wires.

The TPN-24 Airport Surveillance radar system is a major system of the TPN-19 Air Traffic Control. This suggests that the TPN-19 Air Traffic Control is equipped with the TPN-24 Airport Surveillance radar system, which is used for monitoring and controlling air traffic at airports.

Category II maintenance enables the chief of maintenance to coordinate and direct the maintenance effort with either a separated maintenance staff or a consolidated maintenance staff. This means that the chief of maintenance has the flexibility to choose between having separate teams for different tasks or consolidating all maintenance tasks under one team. This category allows for efficient coordination and direction of the maintenance effort based on the specific needs and resources of the organization.

The Table of Allowance 417 is the correct answer because it prescribes items and quantities of equipment authorized to perform the assigned systems control peacetime and wartime missions. It provides a comprehensive list of equipment that is authorized for use in these missions, ensuring that the necessary resources are available for effective systems control. The other options, such as Document Register D04, Test, Measurement, and Diagnostic Equipment listings, and Communication-Computer Systems Installation records, do not specifically address the prescription of items and quantities of equipment for systems control missions.

A Line Interactive UPS utilizes a transformer or inductor between the utility power source and the load to correct or filter some variations in input power. This type of UPS is able to provide some level of voltage regulation and protection against power surges and sags. It continuously monitors the input power and adjusts the output voltage accordingly, ensuring a stable power supply to the load. In the event of a power outage, the UPS switches to battery power to provide uninterrupted power to the load.

By using 8-PSK (8-Phase Shift Keying) instead of binary phase shift keying, the information capacity is increased three times. This is because 8-PSK allows for 8 different phase shifts, while binary phase shift keying only allows for 2. With more phase shifts, more information can be encoded and transmitted, resulting in a higher information capacity.

The CURSORS control button is the correct answer because it is responsible for controlling all the waveforms displayed in the STORE mode of a storage oscilloscope. This button allows the user to manipulate and analyze the stored waveforms by adjusting the cursors on the screen. By using the CURSORS control, the user can measure various parameters such as voltage, time, and frequency, making it an essential tool for waveform analysis in the STORE mode.

The Airborne Warning and Control System (AWACS) provides all weather surveillance, command, control, and communications needed by commanders of US, NATO, and other allied air defense forces. AWACS is an airborne radar system that can detect and track aircraft, provide early warning of potential threats, and coordinate and direct air defense operations. It is designed to operate in all weather conditions and provides a comprehensive picture of the battlespace, allowing commanders to make informed decisions and effectively control and communicate with their forces.

In an amplifier circuit, you can measure the AC component of an output voltage where both AC and DC voltage levels exist. Amplifiers are electronic devices that increase the amplitude of a signal, allowing the AC component to be amplified while the DC component remains unchanged. This makes an amplifier circuit suitable for measuring the AC component in such a scenario.

The variable range of signals output from the HP3325B synthesizer/function generator is 1mV to 10V peak to peak. This means that the output signal can vary from a minimum of 1 millivolt to a maximum of 10 volts, measured from the highest point to the lowest point of the waveform. The peak to peak measurement is used to describe the full range of the signal, encompassing both the positive and negative peaks.

The spacing of the sidebands in an amplitude modulated signal is determined by the frequency of the modulating signal. In amplitude modulation, the modulating signal affects the amplitude of the carrier signal, resulting in the creation of sidebands. The frequency of the modulating signal determines the distance between these sidebands, with higher frequencies leading to closer spacing and lower frequencies resulting in wider spacing. Therefore, the frequency of the modulating signal directly influences the spacing of the sidebands in an amplitude modulated signal.

The Crypto Interface Module is the correct answer because it provides data security for Internet Protocol backbone and local network devices. It uses IP to exchange data between nodes of a larger network and external military facilities. This module ensures that the data transmitted over the network is encrypted and secure, protecting it from unauthorized access or interception.

A spectrum analyzer is a device used to measure and display the frequency spectrum of a signal. It is primarily used to analyze the frequency content of a signal and identify its components. Frequency stability, amplitude modulation, and subcarrier oscillator output are all measurements that can be made using a spectrum analyzer. However, peak-peak voltage is not typically measured directly using a spectrum analyzer. It is a measurement of the difference between the maximum and minimum voltage levels in a signal, which can be measured using an oscilloscope or a voltmeter.

A spectrum analyzer is a device used to measure the frequency spectrum of a signal. It analyzes the different frequencies present in a signal and displays them graphically. Subcarrier oscillator outputs refer to the frequencies generated by an oscillator used in subcarrier systems, such as in television broadcasting or wireless communication. Therefore, measuring subcarrier oscillator outputs is a valid measurement that can be made using a spectrum analyzer.

EMSEC stands for Emanation Security, which is a security discipline used to deny access to classified and unclassified information and contain compromising emanation within an inspectable space. Emanation refers to unintentional signals or emissions that can be intercepted and used to gather information. EMSEC focuses on protecting against the interception of these emanations, such as electromagnetic radiation or acoustic signals, to prevent unauthorized access to sensitive information. It involves measures like shielding, filtering, and encryption to minimize the risk of compromising emanations.

The Deployed Maintenance Operations Center is responsible for assigning predeployment inspection job control numbers for tasked equipment or unit type codes. This means that they are in charge of organizing and managing the inspections for equipment before it is deployed.

Multimode step-index fiber is the least efficient type of fiber because it has the highest dispersion and a larger core diameter. The larger core diameter allows for multiple modes or paths for light to travel through, causing signal degradation and dispersion. This results in a lower bandwidth and shorter transmission distances compared to other fiber types.

The correct answer is C2 Systems. The AOC communications support team is responsible for ensuring that servers, workstations, peripherals, communications devices, and software are online and available to the user. C2 Systems refers to Command and Control Systems, which are used to manage and coordinate military operations. Therefore, it is the responsibility of the C2 Systems team to ensure the availability and functionality of these systems for effective communication and command execution.

The Joint Surveillance Target Attack Radar System (Joint STARS) is an aircraft that is primarily used to provide ground and air commanders with ground surveillance. It is equipped with radar systems that can detect and track ground targets, providing real-time information on enemy movements and activities. This information is crucial for commanders to make informed decisions and effectively plan and execute military operations. The other options, such as Rivet Joint, Airborne Warning and Control System, and Global Hawk Unmanned Aerial Vehicle, do not have the same primary mission of ground surveillance as the Joint STARS.

The PRN pattern synchronizer/comparator generates its own pattern to compare with the received data from the data clock receivers.

The Rivet Joint aircraft supports theater and national level consumers with near real-time on-scene intelligence collection, analysis, and dissemination capabilities. This means that it is able to gather intelligence information in real-time and provide it to both theater-level (specific regions or areas of operation) and national-level consumers. The aircraft is equipped with advanced technology that allows it to collect, analyze, and disseminate intelligence data quickly and efficiently.

The correct answer is "48-bit transmitter only". This pattern simulator section of the bit error test set accepts a 48-bit parallel word and generates a serial pattern. It does not include a PRN generator or comparator, nor does it have a register or word display. Therefore, the only option that fits the given description is the "48-bit transmitter only".

The correct answer is Frequency, universal, microwave, and reciprocal. These four classes of electronic counters are commonly used in various applications. Frequency counters are used to measure the frequency of a signal, universal counters can measure various parameters like frequency, period, time interval, and more, microwave counters are designed specifically for high-frequency signals, and reciprocal counters are used to measure the reciprocal of a signal's frequency. Each class serves a specific purpose in electronic counter technology.

The process of UTC posturing involves identifying and making a unit's trained and ready capable UTCs. This means determining which units are prepared and equipped to perform specific tasks and responsibilities outlined in the Unit Type Code (UTC). By doing so, commanders can accurately report the ability of a standard UTC to perform its mission capability (MISCAP). This process helps in ensuring that the right units are assigned to specific tasks and reduces the need for Temporary Duty (TDY) or deployments, thus optimizing resources and efficiency.

A technical solution refers to a comprehensive plan that outlines the maintenance, software, hardware, security requirements, technical data, circuits, supplies, and required follow-on support needed for a project. It encompasses all the technical aspects and resources necessary to meet the project's objectives and ensure its smooth operation. This includes identifying the specific maintenance procedures, software and hardware components, security measures, and technical data that will be required. The technical solution is an essential document that guides the implementation and support of the project.

Totalize is the correct answer because it refers to the electronic counter measurement that counts the total number of bits in a pulse train. This measurement is commonly used in various applications, such as telecommunications and data transmission, to accurately determine the number of bits being transmitted or received in a given pulse train.

The Deployed Maintenance Production Work Center participates in predeployment inspections prior to the deployment of equipment. This center is responsible for conducting maintenance operations and ensuring that equipment is in proper working condition before deployment. They perform inspections and repairs to ensure that all equipment meets the necessary standards and is ready for use in the field.

The primary means of measuring the quality of transmitted digital information is BER, which stands for Bit Error Rate. This measure is derived by calculating the ratio of the number of bits in error to the total number of bits transmitted. It provides an indication of the reliability and accuracy of the transmission, with a lower BER indicating a higher quality of the transmitted information.