Bandwidth Lab
Signal · Noise · Squelch
Teaching metaphor: a “target signal” tries to stand out inside a wide spectrum of competing activity.
Bandwidth = spread, Signal = salience, Squelch = gating threshold.
Balanced · signal visible · noise manageable
Noise band
Target signal
Squelch gate
Visual rule: anything with “intensity” below the gate is dimmed. Raise squelch = fewer intrusions, but you may lose subtle signals.
Bandwidth (spread)
6.0 / 10
Higher = more competing channels / more variability.
Signal amplitude (salience)
0.35
Higher = the “target” pops out more easily.
Squelch (gate threshold)
0.55
Higher = filter more (less intrusion), but subtle signals can disappear too.
Try: Bandwidth 8–10, Signal 0.2–0.4, Squelch 0.5–0.7 → “wideband low-amplitude squelch.”