13
IS SP 12.1P Operating Manual
Impedance
Beamwidth
Directivity
Index
100
1k
10k
100
10
Frequency [Hz]
Im
pe
da
nc
e,
A
m
plit
ud
e [o
hm
]
20
50
200
500
2k
5k
20k
200
50
20
5
8 ohm
32 ohm
100
1k
10k
100
10
Frequency [Hz]
B
ea
m
wid
th
[d
eg
]
20
50
200
500
2k
5k
20k
200
50
20
5
Horizontal
Vertical
100
1k
10k
40
30
20
10
0
Frequency [Hz]
D
ir
ec
tiv
ity
I
nd
ex
[d
B
]
20
50
200
500
2k
5k
20k
35
25
15
5
Directivity Index
IS 3.8P Specifications
