MIL-DTL-24223/3B(SH)
TABLE I. On-axis sound pressure output.
Decibel (dB) 1/ Output in Warble Band (Hertz)
Type
Distance
800 to
1,250 to
2,000 to
3,200 to
80 VA (max)
(FT)
320 to 500
500 to 800
1,250
2,000
3,200
5,000
LS-657()/SIC
10
111
110
116
120
118
---
NOTE:
1/
dB re 0.0002 dynes/cm2 at the distance specified.
Sound pressure distribution:
TABLE II. Off-axis sound pressure output.
dB Decrease In Relative Sound Pressure Output
Type
30 Degrees Off-Axis
30 Degrees Off-Axis (Vertical
80 VA
(Horizontal Plane)
Plane)
LS-657()/SIC
6.5
5
Frequency: Response shall be within the FIGURE 2 limits over the band shown.
Volume control: None required.
3
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