Справочник Пользователя для Agilent Technologies E1441A
180
Service Procedures
Appendix D
AC Amplitude Adjustment (High-Z)
The function generator stores twenty-two calibration constants related to
HIGH Z output, and sixteen calibration constants related to 50
HIGH Z output, and sixteen calibration constants related to 50
Ω output. The
constants are calculated from the adjustment value entered. The calibration
constants are stored following completion of SETUP 22 (HIGH Z output)
and the calibration procedure may be aborted after that point. No calibration
constants are stored if the procedures are aborted at any other setup.
constants are stored following completion of SETUP 22 (HIGH Z output)
and the calibration procedure may be aborted after that point. No calibration
constants are stored if the procedures are aborted at any other setup.
1. Use a DMM to measure the function generator ACrms output voltage
for SETUP 08. These adjustments use a HIGH Z output termination.
2. Send the CAL:VALue <measured Vac> to the function generator.
3. Send CAL? command to the function generator to initiate calibration.
4. Repeat steps 1, 2 and 3 for SETUP 09 through 29.
5. Perform the “AC Amplitude Verification” on page 169.
Table D-13. AC Amplitude (High Z) Adjustment Setups
Nominal Output
SETUP
FREQUENCY
AMPLITUDE
Adjustment for:
08
1 kHz
5.5 V rms
2 dB Output Attenuator
09
1 kHz
4.4 V rms
4 dB Output Attenuator
10
1 kHz
3.5 V rms
6 dB Output Attenuator
11
1 kHz
2.8 V rms
8 dB Output Attenuator
12
1 kHz
2.2 V rms
10 dB Output Attenuator
13
1 kHz
1.7 V rms
12 dB Output Attenuator
14
1 kHz
1.4 V rms
14 dB Output Attenuator
15
1 kHz
1.1 V rms
16 dB Output Attenuator
16
1 kHz
0.88 V rms
18 dB Output Attenuator
17
1 kHz
0.70 V rms
20 dB Output Attenuator
18
1 kHz
0.55 V rms
22 dB Output Attenuator
19
1 kHz
0.44 V rms
24 dB Output Attenuator
20
1 kHz
0.35 V rms
26 dB Output Attenuator
21
1 kHz
0.28 V rms
28 dB Output Attenuator
22
1 kHz
0.22 V rms
30 dB Output Attenuator
23
1 kHz
5.5 V rms
2 dB Pre-attenuator
24
1 kHz
4.4 V rms
4 dB Pre-attenuator
25
1 kHz
3.5 V rms
6 dB Pre-attenuator
26
1 kHz
2.8 V rms
8 dB Pre-attenuator
27
1 kHz
2.2V rms
10 dB Pre-attenuator
28
1 kHz
1.7 V rms
12 dB Pre-attenuator
29
1 kHz
1.4 Vrms
14 dB Pre-attenuator