37
IEC61672-1 (JIS C 1509-1) Frequency Response
"Nominal
frequency
(Hz)"
"Exact
frequency
(Hz)"
"UC-52
Frequency
Response
(dB)"
"FT3432
Frequency
Response
(dB)
case reflec-
tion"
"FT3432
Electrical
Response
(dB)"
"Total
Response
(dB)"
"Wind
screen
effect
(dB)"
"Total
Response
(WS-14
combined)
(dB)"
"Total
expanded
uncertainty"
63
63.10
0.0
0.0
-0.1
-0.1
0.0
-0.1
0.3
80
79.43
0.0
0.0
-0.1
-0.1
0.0
-0.1
0.3
100
100.0
0.0
0.0
-0.1
-0.1
0.0
-0.1
0.3
125
125.9
0.0
0.0
0.0
0.0
0.0
0.0
0.3
160
158.5
0.0
0.0
0.1
0.1
0.0
0.1
0.3
200
199.5
0.0
0.0
0.1
0.1
0.0
0.1
0.2
250
251.2
0.0
0.0
0.1
0.1
0.0
0.1
0.2
315
316.2
0.0
0.0
0.1
0.1
0.0
0.1
0.2
400
398.1
0.0
0.0
0.1
0.1
0.0
0.1
0.2
500
501.2
0.0
0.0
0.0
0.0
0.0
0.0
0.2
630
631.0
0.0
0.0
0.1
0.1
0.0
0.1
0.2
800
794.3
0.0
0.0
0.0
0.0
0.0
0.0
0.2
1000
1000.0
0.0
0.2
0.0
0.2
-0.1
0.1
0.2
1060
1059.3
0.0
0.3
0.0
0.3
0.0
0.3
0.3
1120
1122.0
0.0
0.3
0.0
0.3
-0.1
0.2
0.3
1180
1188.5
0.0
0.3
0.0
0.3
0.0
0.3
0.3
1250
1258.9
0.0
0.3
0.0
0.3
-0.1
0.2
0.3
1320
1333.5
0.0
0.3
0.0
0.3
0.0
0.3
0.3
1400
1412.5
0.0
0.3
0.0
0.3
0.1
0.4
0.3
1500
1496.2
0.1
0.3
0.0
0.4
0.0
0.4
0.3
1600
1584.9
0.1
0.3
0.0
0.4
0.0
0.4
0.3
1700
1678.8
0.1
0.2
0.0
0.3
-0.1
0.2
0.3
1800
1778.3
0.1
-0.1
0.0
0.0
0.1
0.1
0.3
1900
1883.6
0.1
-0.1
0.0
0.0
0.1
0.1
0.3
2000
1995.3
0.2
-0.1
0.0
0.1
0.1
0.2
0.3
2120
2113.5
0.2
-0.1
0.0
0.1
0.2
0.3
0.3
2240
2238.7
0.2
0.0
0.0
0.2
0.2
0.4
0.3
2360
2371.4
0.2
0.0
0.0
0.2
0.1
0.3
0.3
2500
2511.9
0.3
-0.1
-0.1
0.1
0.2
0.3
0.3
2650
2660.7
0.3
-0.3
-0.1
-0.1
0.2
0.1
0.3
2800
2818.4
0.3
-0.6
-0.1
-0.4
0.2
-0.2
0.3
3000
2985.4
0.4
-0.8
-0.1
-0.5
0.2
-0.3
0.3
3150
3162.3
0.4
-0.8
-0.1
-0.5
0.2
-0.3
0.3
3350
3349.7
0.4
-0.6
-0.1
-0.3
0.3
0.0
0.4
3550
3548.1
0.4
-0.4
-0.1
-0.1
0.4
0.3
0.4
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