Patter 20. A square wave at 1200 Hz, originating from Radio Tower. Recorded in a corridor environment, era: 1920s. One of 5555 echoes — sounds no one thought to save.
Name
ECHO #1405 — Patter 20
ID#1405
Rarity
MID:35%
Frequency
1200 Hz
EX:4%
Wave Type
Square
X-HI:10%
Resonance
Harsh
X-HI:8%
Era
1920s
EX:4%
Origin
Radio Tower