Larson Davis Spartan 821 - Page 92

Spartan 821/721 Manual IEC 61672-1 Section 9.3 B-3
1995 0.11 -0.11 0.59 0.70 -0.70 0.25
2113 0.01 -0.01 0.63 0.64 -0.64 0.35
2239 -0.03 0.03 0.60 0.56 -0.56 0.35
2371 -0.09 0.09 0.74 0.65 0.65 0.35
2512 -0.22 0.22 0.71 0.49 -0.49 0.35
2661 -0.26 0.26 0.74 0.48 -0.48 0.35
2818 -0.36 0.36 0.76 0.48 -0.48 0.35
2985 -0.12 0.12 0.75 0.63 -0.63 0.35
3162 -0.05 0.05 0.64 0.58 -0.58 0.35
3350 -0.13 0.13 0.61 0.47 -0.47 0.35
3548 -0.07 0.07 0.47 0.40 -0.40 0.35
3758 -0.03 0.03 0.31 0.28 -0.28 0.35
3981 -0.08 0.08 0.19 0.11 -0.11 0.35
4217 0.19 -0.19 0.09 0.27 -0.27 0.45
4467 0.39 -0.39 0.04 0.42 -0.42 0.45
4732 0.39 -0.39 -0.19 0.20 -0.20 0.45
5012 0.34 -0.34 -0.21 0.13 -0.13 0.45
5309 0.05 -0.05 -0.03 0.02 -0.02 0.45
5623 0.30 -0.30 0.06 0.37 -0.37 0.45
5957 0.51 -0.51 0.15 0.66 -0.66 0.45
6310 0.23 -0.23 0.11 0.34 -0.34 0.45
6683 0.01 -0.01 0.15 0.16 -0.16 0.45
7079 0.01 -0.01 0.09 0.09 -0.09 0.45
7499 -0.26 0.26 -0.11 -0.37 0.37 0.45
7943 -0.04 0.04 -0.26 -0.30 0.30 0.45
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