Technical data

6 Specifications and Characteristics
88 U3401A User’s and Service Guide
Decibel (dB) Calculation
Table 6 - 7 Range and accuracy (dB)
Voltage range
[1][2]
Input voltage
dBm
[3]
range at
600 Ω ref
Accuracy(One year; 23°C ± 5°C) (dB)
30 Hz to 50 Hz 50 Hz to 10 kHz 10 kHz to 100 kHz
500 mV
20 mV to 500 m V –29.82 to –3.80 0.3 0.3 0.7
5 V
500 mV to 5 V –3.80 to 16.20 0.2 0.2 0.5
50 V
5 V to 50 V 16.20 to 36.20 0.2 0.2 0.5
500 V
50 V to 500 V 36.20 to 56.20
0.2
[5]
0.2
0.5
[5]
1000 V (dc)
500 V to 1000 V 56.20 to 62.22 —
0.2
[4]
—
750 V (ac)
500 V to 750 V 56.20 to 59.72 —
0.2
[4]
—
Notes:
1 Autoranging is used when dBm operation is enabled.
2 In 1000 V (dc) range, 1200 V is readable. In 750 V (ac) range, 1000 V is readable.
3 Reading displayed in dB when Rel operation is used.
4 For input voltage at frequemcy between 50 Hz to 1 kHz.
5 Input Voltage < 200 V RMS.