Acterna SPM-32A - Selectivity, Bandwidth Selectable

5.5 Selectivity, bandwidth selectable SPM-32A ... SPM-36A
5-12
5.5 Selectivity, bandwidth selectable
SPM-32A/-33A/-36A:
Table 5-11 Selectivity (SPM-32A/-33A)
SPM-34A:
Table 5-12 Selectivity (SPM-34A)
Nominal
value
Effective
noise
bandwidth
Bandwidth for
attenuation
< 3 dB
Centre
frequency
±∆f for
attenuation
>
60 dB
25 Hz
100 Hz
1
1.74 kHz
3.1 kHz
-
-
1.74 kHz ±10%
3.1 kHz ±15%
24 Hz
80 Hz
1450 Hz
2.7 kHz
± 250 Hz
± 400 Hz
± 2 kHz
± 2 kHz
Option, replaces 25 Hz. Values for +10 to +35° C
3 dB band-
width
(nominal)
Attenuation at frequency offset
∆
f
≤
0.5 dB
≤
3 dB
≥
17 dB
≥
50 dB
25 Hz
100 Hz
200 Hz
400 Hz
1200 Hz
3100 Hz
1
—
±
25 Hz
±
60 Hz
±
120 Hz
±
360 Hz
—
±
12 Hz
±
45 Hz
±
100 Hz
±
200 Hz
±
600 Hz
—
—
±
100 Hz
±
200 Hz
±
400 Hz
±
1200 Hz
—
±
100 Hz
±
350 Hz
±
700 Hz
±
1 kHz
±
2 kHz
3
±
2 kHz
3
1 Effective noise bandwidth 3.1 kHz + 15 %
2 Bandwidth for attenuation <
3 dB = 2.7 kHz
3 Stop-band attenuation ≥ 55 dB