8) This describes the essential skills and knowledge and their level, required for this unit. Evidence shall show that knowledge has been acquired of safe working practices and assembling and erecting reception antennae and signal distribution equipment. All knowledge and skills detailed in this unit should be contextualised to current industry practices and technologies. KS01-EH108A Antenna assembly and installation Evidence shall show an understanding of antenna assembly and installation, applying safe working practices and relevant Standards, Codes and Regulations to an extent indicated by the following aspects: T1. signal reception Inadequate / optimum / excessive signal level Multipath transmission Interference T2. TV antennas Types Operating characteristics TV antenna terminology Multiple antennas Assembly and installation T3. Transmission lines Types Characteristic impedance Attenuation Bandwidth Standing waves Installation T4. Antenna distribution systems Identical and adjacent channel interference Masthead/distribution amplifiers Diplexors Triplexors Splitters and couplers “T” networks and existing loop wired networks practical small distribution system design Field strength meters Attenuators VCR output injection Installation T5. Satellite receivers Block diagram Operating characteristics Installation T6. Antenna fault-finding Common faults Fault finding and repair Testing T7 Electronic safe working practices Risk management and assessment of risk encompassing: Principle and purpose of risk management, and Processes for conducting a risk assessment Hazards associated with low-voltage, extra-low voltage and high-currents encompassing: Parts of an electronic systems and equipment that operate at low-voltage and extra-low voltage, Parts of an electronic systems and equipment where high-currents are likely. Risks and control measures associated with high-voltage encompassing: Parts of an electronic systems and equipment that operate at high-voltage, The terms used - ‘touch voltage’, ‘step voltage’, ‘induced voltage’ and ‘creepage’ as they relate to the hazards of high-voltage, and Control measures used for dealing with the hazards of high-voltage. Risks and control measures associated with low voltage encompassing: Risks associated with installation, fault finding, maintenance and repair. Control measures before, while and after working on electronic systems or equipment Isolation and tagging-off procedures. Risks and restrictions in working live. Control measures for working live. Safety, selection, use, maintenance and care of test equipment encompassing: Safety characteristics of electrical testing devices, Chemical cleaning solvents, glues and joining wastes used in electronics, Safe use of electrical testing device, and Checks and storage methods for maintaining the safety of testing devices. |