Larson Davis Spartan 821 - Page 93

Spartan 821/721 Manual IEC 61672-1 Section 9.3 B-4
8414 0.01 -0.01 -0.54 -0.52 0.52 0.55
8913 -0.24 0.24 -0.35 -0.59 0.59 0.55
9441 -0.17 0.17 -0.35 -0.52 0.52 0.55
10000 -0.77 0.77 -0.29 -1.06 1.06 0.55
10593 0.08 -0.08 -0.19 -0.11 0.11 0.55
11220 -0.47 0.47 -0.83 -1.30 1.30 0.55
11885 -0.22 0.22 -0.53 -0.76 0.76 0.55
12589 -0.06 0.06 -1.05 -1.12 1.12 0.55
13335 0.21 -0.21 -0.70 -0.50 0.50 1
14125 0.19 -0.19 -0.71 -0.53 0.53 1
14962 0.01 -0.01 -0.98 -0.97 0.97 1
15849 -0.28 0.28 -1.40 -1.68 1.68 1
16788 -0.39 0.39 -1.10 -1.49 1.49 1
17783 -0.09 0.09 -0.13 -1.55 -1.42 1
18836 0.13 -0.13 -1.55 -1.42 1.42 1
19953 -0.39 0.39 -1.58 -1.97 1.97 1
1. All data represented includes response of the default FF:FF filter. Corrected results shall be obtained by
adding the appropriate correction values to the measured level.
TABLE B.1 821 with PRM821/377B02 Average Frequency Responses and Corrections,
Required by IEC 61672-1 (Continued)
Exact
Frequency
0° Free
Field
Response
0° Free-
Field
Corrections
1
Effect of
Wind
Screen
0° Free
Field
821 with
Wind
Screen
0° Free-
Field
Corrections
821 with
Wind
Screen¹
Expanded
uncertainty
of
Corrections
@ 95%
Hz dB dB dB dB dB dB