# Radio, Cellular, and Tower Equipment Installers and Repairers > Repair, install, or maintain mobile or stationary radio transmitting, broadcasting, and receiving equipment, and two-way radio communications systems used in cellular telecommunications, mobile broadband, ship-to-shore, aircraft-to-ground communications, and radio equipment in service and emergency vehicles. May test and analyze network coverage. - Code: 49-2021.00 (O*NET-SOC; SOC 2018 49-2021) - Family: [Installation, Maintenance & Repair](https://foundation.org.ai/occupations#family-49), one of its 52 occupations - Tasks: 30 tasks (12 core, 6 supplemental and 12 not rated) - Page: https://foundation.org.ai/occupations/49-2021.00 - JSON: https://foundation.org.ai/data/tasks/49-2021.00.json ## What the work is made of 1. Inspect completed work to ensure all hardware is tight, antennas are level, hangers are properly fastened, proper support is in place, or adequate weather proofing has been installed. Core task · Task 19401 · Rated by 61 people who do the job, August 2022 2. Run appropriate power, ground, or coaxial cables. Core task · Task 19409 · Rated by 62 people who do the job, August 2022 3. Test operation of tower transmission components, using sweep testing tools or software. Core task · Task 19410 · Rated by 62 people who do the job, August 2022 4. Install all necessary transmission equipment components, including antennas or antenna mounts, surge arrestors, transmission lines, connectors, or tower-mounted amplifiers (TMAs). Core task · Task 19402 · Rated by 61 people who do the job, August 2022 5. Read work orders, blueprints, plans, datasheets or site drawings to determine work to be done. Core task · Task 19407 · Rated by 61 people who do the job, August 2022 6. Replace existing antennas with new antennas as directed. Core task · Task 19408 · Rated by 62 people who do the job, August 2022 7. Bolt equipment into place, using hand or power tools. Core task · Task 19398 · Rated by 60 people who do the job, August 2022 8. Install, connect, or test underground or aboveground grounding systems. Core task · Task 19404 · Rated by 60 people who do the job, August 2022 9. Complete reports related to project status, progress, or other work details, using computer software. Core task · Task 19412 · Rated by 61 people who do the job, August 2022 10. Check antenna positioning to ensure specified azimuths or mechanical tilts and adjust as necessary. Core task · Task 19399 · Rated by 61 people who do the job, August 2022 11. Transport equipment to work sites, using utility trucks and equipment trailers. Core task · Task 19415 · Rated by 61 people who do the job, August 2022 12. Take site survey photos or photos of work performed, using digital cameras. Core task · Task 19414 · Rated by 59 people who do the job, August 2022 13. Climb towers to access components, using safety equipment, such as full-body harnesses. Supplemental task · Task 19411 · Rated by 60 people who do the job, August 2022 14. Climb communication towers to install, replace, or repair antennas or auxiliary equipment used to transmit and receive radio waves. Supplemental task · Task 19400 · Rated by 62 people who do the job, August 2022 15. Lift equipment into position, using cranes and rigging tools or equipment, such as gin poles. Supplemental task · Task 19405 · Rated by 59 people who do the job, August 2022 16. Perform maintenance or repair work on existing tower equipment, using hand or power tools. Supplemental task · Task 19406 · Rated by 61 people who do the job, August 2022 17. Locate tower sites where work is to be performed, using mapping software. Supplemental task · Task 19413 · Rated by 59 people who do the job, August 2022 18. Install or repair tower lighting components, including strobes, beacons, or lighting controllers. Supplemental task · Task 19403 · Rated by 61 people who do the job, August 2022 19. Calibrate and align components, using scales, gauges, and other measuring instruments. Not rated · Task 23510 · Listed by O*NET analysts, November 2020 20. Examine malfunctioning radio equipment to locate defects such as loose connections, broken wires, or burned-out components, using schematic diagrams and test equipment. Not rated · Task 23511 · Listed by O*NET analysts, November 2020 21. Insert plugs into receptacles and bolt or screw leads to terminals to connect equipment to power sources, using hand tools. Not rated · Task 23512 · Listed by O*NET analysts, November 2020 22. Install, adjust, and repair stationary and mobile radio transmitting and receiving equipment and two-way radio communication systems. Not rated · Task 23513 · Listed by O*NET analysts, November 2020 23. Monitor radio range stations to detect transmission flaws and adjust controls to eliminate flaws. Not rated · Task 23514 · Listed by O*NET analysts, November 2020 24. Mount equipment on transmission towers and in vehicles such as ships or ambulances. Not rated · Task 23515 · Listed by O*NET analysts, November 2020 25. Remove and replace defective components and parts such as conductors, resistors, semiconductors, and integrated circuits, using soldering irons, wire cutters, and hand tools. Not rated · Task 23516 · Listed by O*NET analysts, November 2020 26. Repair circuits, wiring, and soldering, using soldering irons and hand tools to install parts and adjust connections. Not rated · Task 23517 · Listed by O*NET analysts, November 2020 27. Test batteries, using hydrometers and ammeters, and charge batteries as necessary. Not rated · Task 23518 · Listed by O*NET analysts, November 2020 28. Test emergency transmitters to ensure their readiness for immediate use. Not rated · Task 23519 · Listed by O*NET analysts, November 2020 29. Test equipment functions such as signal strength and quality, transmission capacity, interference, and signal delay, using equipment such as oscilloscopes, circuit analyzers, frequency meters, and wattmeters. Not rated · Task 23520 · Listed by O*NET analysts, November 2020 30. Turn setscrews to adjust receivers for maximum sensitivity and transmitters for maximum output. Not rated · Task 23521 · Listed by O*NET analysts, November 2020 ## More in Installation, Maintenance & Repair - [Aircraft Mechanics and Service Technicians](https://foundation.org.ai/occupations/49-3011.00): 38 tasks - [Audiovisual Equipment Installers and Repairers](https://foundation.org.ai/occupations/49-2097.00): 11 tasks - [Automotive Body and Related Repairers](https://foundation.org.ai/occupations/49-3021.00): 25 tasks - [Automotive Glass Installers and Repairers](https://foundation.org.ai/occupations/49-3022.00): 18 tasks - [Automotive Service Technicians and Mechanics](https://foundation.org.ai/occupations/49-3023.00): 30 tasks - [Avionics Technicians](https://foundation.org.ai/occupations/49-2091.00): 13 tasks - [Bicycle Repairers](https://foundation.org.ai/occupations/49-3091.00): 14 tasks - [Bus and Truck Mechanics and Diesel Engine Specialists](https://foundation.org.ai/occupations/49-3031.00): 26 tasks - [Camera and Photographic Equipment Repairers](https://foundation.org.ai/occupations/49-9061.00): 15 tasks - 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