702 Keysight N9038A MXE Service Guide
Tests
Scale Fidelity
Scale Fidelity
Test Limits
The scale fidelity error test limit is
±
1.0 dB.
Overview
This test checks the scale fidelity of the receiver by maintaining a constant
reference level and measuring signals of different amplitudes over most of the
display range. This test sets the input attenuator to 10 dB and the Reference
Level to 0 dBm. The external attenuator is set to 0 dB, and the amplitude of the
source is adjusted to set the displayed signal at the reference level.
The receiver’s internal marker is used to measure the reference amplitude. The
Marker Delta function is activated and the RF input is reduced using the
external precision step attenuator. Signal input levels from 0 dBm to
−
50 dBm
are measured.
This measurement is performed on RF Input 1 only.
Table 22-22
Scale Fidelity - Required Equipment
Item
Critical Specifications
(for this test)
Recommended
Keysight Model
Adapter
a
Type-N (m) to 3.5 mm (f)
Frequency: 50 MHz
VSWR: < 1.1:1
1250-1744
Adapter
b
3.5 mm (f) to 3.5 mm (f)
Frequency: 50 MHz
VSWR: < 1.1:1
83059B
Adapter
c
2.4 mm (f) to 3.5 mm (f)
Frequency: 50 MHz
VSWR: < 1.1:1
11901B
Attenuator, 10 dB
d
3.5 mm (m) to 3.5 mm (f)
Frequency: 50 MHz
VSWR: < 1.2:1
8493C,
Option 010
Attenuator, 10 dB Step
3.5 mm (f) to 3.5 mm (f)
Range: 0-50 dB
Frequency: 50 MHz
Accuracy:
±
0.25 dB
8495A
Option 004
Cable, 1 meter
3.5 mm (m) to 3.5 mm (m)
Frequency: 50 MHz
VSWR: < 1.4:1
11500E
Cable, 120 cm
BNC (m) to BNC (m)
Frequency: 10 MHz
10503A
Signal Generator
Frequency: 50 MHz
Output Level Accuracy: 0 to –15 dBm:
±
1.0 dB
PSG
a. Required for Option CNF (Type-N RF Input 1)
b. Quantity of 2 required for Option C35 (3.5 mm RF Input 1)
c. Required for Option 544 (44 GHz Frequency Range)
d. Quantity of 2 required
Содержание N9038A
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Страница 66: ...66 Keysight N9038A MXE Service Guide Boot Up and Initialization Potential Problems During Boot Process ...
Страница 130: ...130 Keysight N9038A MXE Service Guide Instrument Messages Condition Messages ...
Страница 216: ...216 Keysight N9038A MXE Service Guide RF Preselector Section RF Preselector Section Troubleshooting ...
Страница 268: ...268 Keysight N9038A MXE Service Guide L O Synthesizer A14 L O Synthesizer Assembly Troubleshooting ...
Страница 354: ...354 Keysight N9038A MXE Service Guide Analog Digital IF A3 Digital I F Troubleshooting ...
Страница 406: ...406 Keysight N9038A MXE Service Guide Block Diagrams Block Diagrams Block Diagrams ...
Страница 407: ...Keysight N9038A MXE Service Guide 407 Block Diagrams Block Diagrams N9038A RF Input Option 503 508 526 Block Diagram ...
Страница 408: ...408 Keysight N9038A MXE Service Guide Block Diagrams Block Diagrams N9038A RF Input Option 544 Block Diagram ...
Страница 428: ...Keysight N9038A MXE Service Guide 447 Block Diagrams Block Diagrams LO Synthesizer Block Diagram ...
Страница 429: ...448 Keysight N9038A MXE Service Guide Block Diagrams Block Diagrams Reference Block Diagram ...
Страница 430: ...Keysight N9038A MXE Service Guide 449 Block Diagrams Block Diagrams MXE Computer Block Diagram ...
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Страница 436: ...Keysight N9038A MXE Service Guide 455 Service and Diagnostics Menus Service Menus Figure 16 5 Alignments Menu ...
Страница 500: ...Keysight N9038A MXE Service Guide 519 Replaceable Parts Hardware Figure 17 23 Front Frame Exploded View LED Backlight ...
Страница 504: ...Keysight N9038A MXE Service Guide 523 Replaceable Parts Hardware Figure 17 26 Front Frame Exploded View CCFL Backlight ...
Страница 589: ...608 Keysight N9038A MXE Service Guide Assembly Replacement Procedures Motherboard Assembly Figure 18 57 Bottom Screws ...
Страница 627: ...646 Keysight N9038A MXE Service Guide Post Repair Procedures Post Repair Procedures ...
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Страница 643: ...662 Keysight N9038A MXE Service Guide Instrument Software Software Updates ...
Страница 741: ...760 Keysight N9038A MXE Service Guide Tests Intermittent Unsteady Drifting Disturbances ...