Deep Signal. A sine wave born in Nuclear Plant, resonating since 2000s. Captured at 888 Hz in a cave space. One of 350 Legendary echoes — sounds that almost escaped recording.
Name
ECHO #0658 — Deep Signal
ID#658
Rarity
HI:22%
Frequency
888 Hz
EX:3%
Wave Type
Sine
X-HI:13%
Resonance
Cold
X-HI:10%
Era
2000s
X-HI:8%
Origin
Nuclear Plant