
LB3-PC250 / LB3-PC350 en 7
Bosch Security Systems B.V. IN-LB3 | V1.0 | 2011.02
LB3-PC250 - Polar diagrams
Horizontal polar diagram (high frequency). Normalized
at 0-degrees axis.
Horizontal polar diagram (low frequency). Normalized at
0-degrees axis.
Vertical polar diagram (high frequency). Normalized at 0-
degrees axis.
Vertical polar diagram (low frequency). Normalized at 0-
degrees axis.
1000 2000 4000 8000
0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170190
200
210
220
230
240
250
260
270
280
290
300
310
320
330
340
350
0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
210
220
230
240
250
260
270
280
290
300
310
320
330
340
350
125 250 500 1000
0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
210
220
230
240
250
260
270
280
290
300
310
320
330
340
350
1000 2000 4000 80 00
0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170190
200
210
220
230
240
250
260
270
280
290
300
310
320
330
340
350
125 250 500 1000
Comments to this Manuals