🔍 Key Concepts

• Single-sideband (SSB) radio operation and what "signal quality" means (distortion, clarity, proper modulation) • The basic function of each instrument listed: field strength meter, signal level meter, sidetone monitor, oscilloscope • How radio technicians typically observe or measure waveform shape and distortion

💭 Think About

• For each choice, ask: Does this instrument mainly measure signal strength/level, or does it let you actually see or evaluate the waveform quality? • Which of these tools would a radio technician most likely use when tuning or troubleshooting an SSB transmitter to check for distortion, over‑modulation, or improper envelope shape? • Think about whether checking "signal quality" is done by listening, by measuring power/level, or by visually inspecting the signal form.

✅ Before You Answer

• Be clear on the difference between amplitude/strength vs. quality/distortion of a signal. • Identify which device is specifically suited to visualizing signal shape over time, not just reading a numeric level. • Confirm which option is normally found on the bench of a radio/electronics technician for checking SSB modulation quality.