Keysight Technologies X Series Manual

Chapter 5 27
Amplitude Accuracy at 50 MHz
Testing Preamp Option (P03, P08, P13, P26, P43, P44, P50)
Testing Preamp Option (P03, P08, P13, P26, P43, P44, P50)
Instruments containing Options P03, P08, P13, P26, P43, P44, P50 must have
the preamp function turned on and tested.
Procedure
1. On the analyzer, press AMPTD Y Scale, More, Internal Preamp, Low Band.
2. Connect the equipment as shown in Figure 5-1 on page 24, using a 30 dB
Pad between the adaptor and the signal analyzer input.
3. Set the synthesized sweeper amplitude to the value listed in the Nominal
Source Amplitude column in Table 5-2
4. Set the signal analyzer input attenuation to 0 dB.
5. Set the Span as listed in Table 5-2
6. Record the synthesized sweeper amplitude, as measured by the power
meter, in the Power Meter Amplitude column of Table 5-2
7. On the signal analyzer, press Restart.
8. Wait for the analyzer to finish averaging.
9. Press Peak Search.
10.Record the signal amplitude as measured by the analyzer in the measured
amplitude column of Table 5-2
11.Calculate the signal amplitude accuracy using the following equation:
Amplitude Accuracy Error = Meas_amp + 30 dB − Power_meter
12.Record the results under the Amplitude Accuracy Error column of Table
5-2
Table 5-2 Amplitude Accuracy Results (Option P03, P08, P13, P26, P43, P44, P50)
Nominal
Source
Amplitude
(dBm)
Low- band
Preamp
Res BW
(kHz)
Span
(kHz)
Measured
Amplitude
Meas_amp
(dBm)
Power Meter
Amplitude
Power_meter
(dBm)
Amplitude
Accuracy
Error
(dB)
Test Limit
(dB)
−13 ON 1 106 ±1.30 dB

Keysight Technologies X Series Specifications

General

Brand	Keysight Technologies
Model	X Series
Category	Measuring Instruments
Language	English