Causes of Erratic SWR Changes in Amateur Radio
What can cause erratic changes in SWR? T9B09 2022-2026
Exam Questions
Proper Bonding of Ground Rods in Amateur Radio
What should be done to all external ground rods or earth connections? T0A09 2022-2026
Proper Placement of Fuses and Circuit Breakers in a 120V AC Circuit
Where should a fuse or circuit breaker be installed in a 120V AC power circuit? T0A08 2022-2026
Proper Installation of Lightning Arrestors in Amateur Radio Setups
Where should a lightning arrestor be installed in a coaxial feed line? T0A07 2022-2026
Essential Safety Precaution for Antenna Tower Installation
Which of the following is an important safety precaution to observe when putting up an antenna tower? T0B04 2022-2026
The Importance of Having a Helper When Climbing a Tower
Under what circumstances is it safe to climb a tower without a helper or observer? T0B03 2022-2026
Essential Safety Measures for Climbing Antenna Towers
What is required when climbing an antenna tower? T0B02 2022-2026
Ensuring Efficient Grounding for Lightning Protection
Which of the following is good practice when installing ground wires on a tower for lightning protection? T0B01 2022-2026
Safety Precautions for Measuring High Voltages with a Voltmeter
Which of the following precautions should be taken when measuring high voltages with a voltmeter? T0A12 2022-2026
Hazards in Power Supplies: The Danger of Stored Charge in Filter Capacitors
What hazard exists in a power supply immediately after turning it off? T0A11 2022-2026