Svantek SV 977D - Effect of the SA 22 Windscreen

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SV 977D User Manual - Appendixes
C.1.2 Effect of the SA 22 windscreen
Note: When using the SA22 windscreen the Windscreen compensation
filter must be switched on to ensure good tolerances margin of the
SV 977D frequency response.
Windscreen SA22 Free Field response and compensated effect
Table C.1.8. Effect of the SA 22 windscreen
Frequency
SA 22 Free Field
response
Compensation
filter
Compensated
SA 22 effect
Uncertainty
(IEC 62585:2012)
[Hz]
[dB]
[dB]
[dB]
[dB]
251
-0.08
-0.01
-0.09
0.20
259
-0.08
-0.01
-0.09
0.20
266
-0.08
-0.01
-0.09
0.20
274
-0.07
-0.02
-0.09
0.20
282
-0.07
-0.02
-0.09
0.20
290
-0.06
-0.02
-0.08
0.20
299
-0.06
-0.02
-0.08
0.20
307
-0.05
-0.02
-0.07
0.20
316
-0.05
-0.02
-0.07
0.20
325
-0.05
-0.02
-0.07
0.20
335
-0.05
-0.02
-0.07
0.20
345
-0.05
-0.02
-0.07
0.20
355
-0.05
-0.03
-0.08
0.20
365
-0.05
-0.03
-0.08
0.20
376
-0.05
-0.03
-0.08
0.20
387
-0.05
-0.03
-0.08
0.20
398
-0.05
-0.03
-0.08
0.20
SA 22 Windscreen Effect
-1,20
-1,00
-0,80
-0,60
-0,40
-0,20
0,00
0,20
0,40
0,60
0,00 5000,00 10000,00 15000,00 20000,00
[Hz]
[dB]
SA22 free fiield response Windscreen compensation filter Compensated Windscree Effect