SBCA Safety Standards 2 — Questions and Answers
Question 1: What is the minimum safe distance a technician must maintain from a transmitting satellite dish operating at high power to avoid RF radiation exposure?
- 1 foot
- The distance specified in the antenna's radiation hazard zone documentation (Correct answer)
- 10 feet universally
- 50 feet for all frequencies
Correct answer: The distance specified in the antenna's radiation hazard zone documentation
Safe distances vary by frequency, power level, and antenna gain, and must be determined from the specific antenna's RADHAZ documentation.
Question 2: Which regulatory body sets the Maximum Permissible Exposure (MPE) limits for RF radiation that SBCA technicians must follow?
- OSHA
- FCC (Correct answer)
- IEEE
- NFPA
Correct answer: FCC
The FCC establishes MPE limits for RF electromagnetic fields as part of its regulations governing transmitting equipment.
Question 3: When climbing a tower that also supports a transmitting antenna, the safest practice is to:
- Climb quickly to minimize exposure time
- Ensure the transmitter is de-energized or the antenna is inhibited before climbing (Correct answer)
- Wear a reflective vest to deflect RF energy
- Limit climbing to nighttime hours when power is reduced
Correct answer: Ensure the transmitter is de-energized or the antenna is inhibited before climbing
The transmitter must be shut down or antenna inhibited before tower climbing to eliminate RF radiation exposure hazards.
Question 4: A satellite dish installation requires working on a roof with a slope greater than 4:12. Which safety equipment is mandatory?
- Hard hat only
- Personal fall arrest system or equivalent fall protection (Correct answer)
- Non-slip boots only
- A spotter on the ground
Correct answer: Personal fall arrest system or equivalent fall protection
OSHA requires personal fall arrest systems or equivalent fall protection for roof work where fall hazards exist, including slopes exceeding 4:12.
Question 5: What does the term 'lockout/tagout' refer to in satellite installation safety?
- Securing dish pointing to prevent unauthorized repositioning
- Procedures to de-energize and prevent re-energizing electrical equipment during maintenance (Correct answer)
- Locking access panels to weatherproof enclosures
- A method of labeling cable runs
Correct answer: Procedures to de-energize and prevent re-energizing electrical equipment during maintenance
Lockout/tagout (LOTO) is an OSHA-required safety procedure for isolating energy sources to prevent accidental energization during maintenance.
Question 6: Which condition makes it unsafe to work on an outdoor satellite installation and requires work stoppage?
- Temperatures below 50°F
- Lightning within 10 miles of the worksite (Correct answer)
- Wind speeds above 5 mph
- Overcast skies reducing visibility
Correct answer: Lightning within 10 miles of the worksite
Lightning within 10 miles presents an imminent electrical hazard requiring all outdoor elevated work to cease immediately.
Question 7: Before cutting a cable run inside an existing wall, a technician should always:
- Test the cable for signal with a meter
- Use a stud finder and wire/pipe detector to locate hidden utilities (Correct answer)
- Apply drywall patching compound first
- Turn off the satellite receiver
Correct answer: Use a stud finder and wire/pipe detector to locate hidden utilities
Scanning for hidden electrical wiring, plumbing, and structural elements prevents accidental damage or electrocution when cutting through walls.
SBCA Safety Standards 2
What is the minimum safe distance a technician must maintain from a transmitting satellite dish operating at high power to avoid RF radiation exposure?