2a553a CDC Volume 5

When the cover is put on a TDR (Time Domain Reflectometer), it automatically turns off. This could be due to a built-in mechanism or sensor that detects the presence of the cover and triggers the power-off function. This feature is likely designed to conserve energy and prevent any accidental measurements or operations while the device is covered.

The shutter is the component of a steerable television camera subassembly that protects the sensor from damage due to overexposure. The shutter controls the amount of light that enters the camera by opening and closing, preventing excessive light from reaching the sensor and causing damage. This helps to ensure that the sensor receives the appropriate amount of light for capturing high-quality images without being overwhelmed by excessive light.

When reading a schematic diagram, it is generally expected that the flow of information or signals will be represented from left to right. This convention is commonly followed in order to maintain consistency and make it easier for readers to interpret the diagram. By following the left-to-right flow, it becomes more intuitive to understand the sequence of events or the path of the circuitry being depicted. Therefore, when examining a schematic diagram, it is important to anticipate that the information will be presented in a left-to-right manner.

The sun is the primary source of infrared energy. It emits a wide range of electromagnetic radiation, including infrared rays. These rays are produced by the sun's intense heat and are responsible for providing warmth to the Earth's surface. Infrared energy is also essential for various natural processes, such as photosynthesis in plants and the regulation of temperature in the atmosphere. Therefore, the sun is considered the main source of infrared energy.

A time domain reflectometer (TDR) is a piece of wire and cable test equipment that uses electromagnetic wave pulses to test cables. It sends a pulse down the cable and measures the reflections that occur when the pulse encounters impedance changes or faults in the cable. By analyzing the time and amplitude of these reflections, a TDR can determine the length of the cable, locate faults or discontinuities, and measure the impedance of the cable. This makes it a valuable tool for troubleshooting and maintaining cables in various industries such as telecommunications, networking, and electrical systems.

Before power is connected to the RFTLTS, it is important to ensure that the ON/POWER/OFF switch is in the OFF position and a suitable grounding strap is connected between the grounding lug on the right side of RFTLTS unit 1 and the aircraft. This is necessary to prevent any electrical shocks or damage to the equipment and to ensure the safety of personnel working on the RFTLTS. By grounding the RFTLTS to the aircraft, any static electricity or electrical charges can be safely dissipated to the ground, reducing the risk of electrical hazards.

When the built-in test switch in the SHTR (shutter) position, the proper response of the steerable television system is the closing of the camera shutter. This means that when the switch is activated, the camera shutter will close, preventing any further image capture. This action is necessary to ensure that no additional images are recorded during the test.

The correct answer is 5 volts were applied. Damage to the sampling gate or tunnel diode of a Time Domain Reflectometer (TDR) indicates that voltages exceeding 5 volts were applied. This suggests that the applied voltage was higher than the maximum threshold that the TDR can handle, causing damage to its components.

Light and infrared energy cannot be diluted because dilution refers to the process of reducing the concentration or strength of a substance by adding more of a solvent. However, light and infrared energy are not substances that can be diluted in this manner. Instead, they can be reflected, refracted, or absorbed by different materials or mediums.

The operating modes of the TS-1843A transponder test set are TEST and MONITOR. This means that the test set can be used to perform tests on the transponder and also to monitor its performance. The TEST mode allows for conducting various tests to assess the functionality and accuracy of the transponder, while the MONITOR mode enables continuous monitoring of the transponder's signals and performance in real-time.

Before beginning to troubleshoot a faulty system, it is crucial to think before you act. This means taking a moment to analyze the situation, gather information, and consider potential causes and solutions. Acting without thinking can lead to further complications or even damage to the system. By taking the time to think before you act, you can approach the troubleshooting process in a more systematic and effective manner, increasing the chances of identifying and resolving the issue successfully.

If the batteries for the TCAS test set are left on charge for an indefinite period of time, there is no danger of overcharging. This means that the batteries will not be damaged or pose a risk of overheating, which could potentially lead to a fire hazard. Instead, the charge cycle will complete and the T/S (test set) will shut down automatically without overcharging the batteries. Therefore, there is no need to replace the batteries due to overcharging.

To initialize the RFTLTS and verify all the test capabilities are operational, you use VSWR/return loss self-alignments. This is because VSWR (Voltage Standing Wave Ratio) and return loss are important parameters in assessing the performance of an antenna or transmission line. By performing self-alignments for VSWR/return loss, the RFTLTS can ensure that the system is properly calibrated and functioning correctly. This alignment helps in measuring the efficiency of power transfer and identifying any impedance mismatches or signal reflections, which are crucial in maintaining optimal signal quality and transmission performance.

To clear a MALF indication during steerable television operation, you need to reset the mode switch to STBY and back to OPR. This action will reset the system and clear the fault indication.

CAL ADJ stands for calibration adjustment, which is a power meter control that compensates for a slight sensitivity associated with a particular type of power sensor. This control allows for fine-tuning and adjusting the calibration of the power meter to ensure accurate measurements. By making the necessary adjustments, the power meter can account for any variations or discrepancies in the sensitivity of the power sensor being used, resulting in more precise and reliable measurements.

During steerable television automatic light control shutdown, losing the high voltage reference signal can be detrimental to the camera tube assembly. The high voltage reference signal is crucial for the proper functioning of the camera tube assembly. If this signal is lost, it can potentially lead to damage or malfunction of the camera tube assembly. Therefore, the shutdown process is designed to protect the camera tube assembly from any harm that may occur due to the loss of the high voltage reference signal.

The SELECT key is used to access the alpha portion of the alphanumeric key in a RFTLTS.

Steerable television performance is verified through front-to-rear tests. These tests involve assessing the television's performance and functionality across different angles and positions, ensuring that it can be easily adjusted and provides consistent picture quality from various viewing perspectives. By conducting front-to-rear tests, any issues or limitations in the television's steerable performance can be identified and addressed, guaranteeing a satisfactory viewing experience for users.

A TDR display that starts in the upper left corner of the screen, drops down at mid screen, and departs in the lower right screen indicates a short. This is because a short circuit causes a sudden drop in impedance, which is reflected in the TDR display as a sharp downward slope. The fact that the display starts in the upper left corner and departs in the lower right screen suggests a consistent and continuous short circuit throughout the cable.

The correct answer is 24 hours. It is important to remove the battery if the TS-3977 test set is going to be idle for more than 24 hours. This is likely because leaving the battery in for an extended period of time without use can lead to drainage and potential damage to the battery. Removing the battery ensures that it stays in good condition and prolongs its lifespan.

The MLS test set provides GO/NO-GO verification of the installed MLS receivers. This means that the test set is used to check whether the MLS receivers are functioning correctly or not. It ensures that the receivers are able to receive and interpret the signals from the MLS system accurately. By performing this verification, any issues or malfunctions with the receivers can be identified and addressed, ensuring the overall effectiveness and reliability of the MLS system.

The correct answer is "the nature of the controlling medium." This means that the main difference between visible light and IR energy lies in the characteristics of the medium through which they travel. Visible light can travel through a vacuum, while IR energy cannot. The controlling medium refers to the substance or material that the light or energy passes through, and in this case, it determines whether visible light or IR energy can propagate.

The correct answer is magnetic and electrostatic. Steerable televisions use a secondary electron conduction tube, which requires both magnetic and electrostatic focusing. Magnetic focusing is used to control the path of the electron beam, while electrostatic focusing is used to ensure that the electrons are focused onto the screen accurately. Both magnetic and electrostatic focusing are necessary for the proper functioning of the steerable television's secondary electron conduction tube.

When zeroing the power sensor, the correct action is to press and hold the SENSOR ZERO switch and wait for the digital readout to stabilize. This means that the reading on the power sensor should settle and become steady. This ensures that the sensor is properly calibrated and ready for accurate measurements.

When calibrating the power sensor, the CAL ADJ control is adjusted so that the digital readout indicates a power measurement of 1.000 mW. This means that the sensor is being calibrated to accurately measure power levels of 1 milliwatt. Adjusting the control to any other value, such as 1.000 W, -1.000 W, or -1.000 mW, would result in an incorrect calibration and inaccurate power measurements.

The correct answer is ELEC-A. This switch position allows for a checkout of the steerable television system on a high-light level basis, representing a minimum gain condition. This means that by selecting this switch position, the system will be tested under conditions of maximum brightness or illumination, ensuring that it is functioning properly even in the most challenging lighting conditions.

The TS-1843A test set can be used to check IFF modes 1, 2, 3/a, and C.

Pressing the TEST RPT button on the transponder TS-3977 test set and aiming the antenna at the ground would result in an indication of "O" on the test code.

The correct answer is ELEC-B. This switch position allows for a checkout of the steerable television system on a low-light level basis, representing a maximum gain condition.

The correct answer is 36 inch, 50 ohm cable. The reason for this is that the TDR (Time Domain Reflectometer) is used to test the impedance and integrity of a cable. The cable used for testing should have the same impedance as the cable being tested. In this case, the standard cable used for testing is 36 inches long and has an impedance of 50 ohms, which matches the cable being tested.

The RFTLTS (Radio Frequency Time Domain Reflectometer) is a diagnostic tool used to identify cable faults. It does this by measuring the voltage standing wave ratio/return loss and conducting various tests. Among these tests, the RFTLTS is particularly useful in determining the distance to the fault in the cable. By analyzing the time it takes for a signal to travel to the fault and back, the RFTLTS can accurately pinpoint the location of the fault in the cable. This information is crucial for efficient troubleshooting and repair of the cable.

The ARM-184A TACAN test set is used to measure the tracking ability of the TACAN range circuits. The maximum range that it can measure is 132 NM. This means that the test set can accurately track TACAN signals up to a distance of 132 nautical miles.

The correct answer is "set to match the line voltage you're using." This means that before turning on the power meter, you need to make sure that it is adjusted to the same voltage as the power source you are using. This is important to ensure accurate measurements and prevent any damage to the power meter or other equipment.

The agin control and iris switches on the manual light control are used to adjust the gain and light level of the steerable television's video. The gain control allows for increasing or decreasing the amplification of the video signal, while the iris control adjusts the amount of light entering the camera, thereby affecting the overall light level.

The horizontal deflection on the cathode-ray tube on the TDR equates to distance. This means that the horizontal movement of the electron beam on the cathode-ray tube is directly proportional to the distance being measured. As the distance increases, the horizontal deflection on the cathode-ray tube also increases, allowing for accurate distance measurements.

Infrared energy is a type of electromagnetic radiation that has a wavelength and frequency. It does not require any physical medium to travel, meaning it can travel through a vacuum. However, it is not caused by molecular friction. Infrared energy is primarily generated by the thermal vibrations and rotations of molecules. Therefore, the correct answer is "Is caused by molecular friction."

The correct answer is video distribution unit. The FLIR set's television video is sent to the data presentation group through the video distribution unit. This unit is responsible for distributing the video signal to multiple displays or devices, allowing the data presentation group to view the FLIR set's television video simultaneously. The video distribution unit ensures that the video signal is transmitted efficiently and effectively to the intended recipients.

Aircraft wiring diagrams are indexed in two ways: alphabetic and numeric. This means that the diagrams are organized and categorized using both alphabetical and numerical systems. The alphabetic index helps to locate specific diagrams based on the names or labels assigned to them, while the numeric index allows for easy referencing and retrieval of diagrams using numerical codes or identifiers. This dual indexing system ensures efficient and accurate access to the required wiring diagrams in aircraft maintenance and troubleshooting procedures.

The correct answer is the servo control unit and VDU. This is because the steerable television needs to interface with both the servo control unit and the VDU in order to function properly. The servo control unit is responsible for controlling the movement of the television, while the VDU is the display unit that shows the video signals. Without both of these components, the steerable television would not be able to operate effectively.

The correct answer is 36 hours. When the ARM-186 VOR/ILS test set RED power lamp is illuminated, it indicates that the battery is low and needs to be recharged. To ensure a full recharge, the battery should be charged for a minimum of 36 hours.

The correct answer is 2 because the question asks for the unit of the RFTLTS that is the accessory kit. The options given are 1, 2, 3, and 4. Since the correct answer is 2, it can be inferred that unit 2 is the accessory kit.

The Allan key contained within the MLS test set is used to make RF power level calibrations. This means that it is used to adjust and set the power levels of the RF signals in the MLS test set. Calibrating the power levels ensures that the signals are accurately and consistently measured and tested. The Allan key is likely used to make precise adjustments to the power levels, allowing for accurate calibration.

The FLIR set's dual field of optics is located in the sensor unit. This means that the sensor unit of the FLIR set contains two separate optical systems that provide different fields of view. These optics are responsible for capturing the thermal images and transmitting them to the other components of the FLIR set for further processing and analysis.

The power meter displays the power in referenced decibels (dBm). Referenced decibels (dBm) is a unit of power measurement that represents the power level relative to 1 milliwatt (mW). It provides a standardized and absolute measurement of power, making it easier to compare power levels across different devices or systems. The power meter may also display power in watts or relative decibels (dBR), but referenced decibels (dBm) is the correct answer as it specifically refers to the power measurement in dBm.

The correct answer is ELEC-A. The question is asking about the built-in test switch position that tests the steerable television's logic and video processor circuits. The only option that includes both LL and HL is ELEC-A, so it is the correct answer.

The TS-3977 can initiate 300 transponder test sequences on a continuous use basis with a fully charged battery stick.

The power meter is a device that is used to measure both absolute and relative power. Absolute power refers to the actual power value being measured, while relative power refers to the power value in comparison to a reference or baseline. The power meter can accurately measure both types of power, making it a versatile tool for various applications. It can be used to measure power in both AC and DC systems, making it suitable for a wide range of power measurement needs.

The TCAS test set is not designed to test the operation of the mode-T transponder. This means that the test set cannot be used to check if the mode-T transponder is functioning correctly. The mode-T transponder is a specific type of transponder used in aviation that responds to Mode A and Mode C interrogations. While the TCAS test set can test the operation of interrogators and mode-S transponders, it is not capable of testing mode-T transponders.

To use the first power level as a reference and store the reading, you would press the "dB REF" switch. This switch blanks the digital display and saves the current reading as the reference point for measuring relative power.

The signal data converter is the subsystem component that provides an electrical interface between the aircraft display and sensor assembly. It is responsible for converting the signal data from the sensor assembly into a format that can be displayed on the aircraft's display system. This allows for seamless communication and integration between the two components, ensuring that the sensor data can be effectively utilized and displayed by the aircraft.