Chapter VII Performance feature test
119
Table A.26 Test Records of SINAD Measurement Accuracy of Audio Meter
ZN5541 setting
Measured value of
VA-2230A (dB)
Measured value of
4992A (dB)
Difference
(dB)
Acceptable
range
(dB)
Conclusion
40% (about 8dB)
1.5
10% (about 20dB)
1% (about 40dB)
Table A.27 Test Records of Measurement Accuracy of Digital Voltmeter
Measurement
mode
Setting of output
signal
Measured value of
4992A
Error
Acceptable range
Conclusion
AC (1kHz)
100mVp
10%
1Vp
10%
3Vp
10%
DC
100mV
10%
1V
10%
3V
10%
Table A.28 Test Records of Vertical Measurement Accuracy of Oscilloscope
Input
selection
Channel selection
Input signal
amplitude
Measured value
of 4992A
Acceptable
range
Conclusion
Audioinput
(1kHz)
0.1V~3V
0.2 V
p-p
0.2
0.02 V
p-p
2 V
p-p
2
0.2 V
p-p
5 V
p-p
5
0.5 V
p-p
DVM input
AC
(1kHz)
0.1V~3V
0.2 V
p-p
0.2
0.02 V
p-p
2 V
p-p
2
0.2 V
p-p
5 V
p-p
5
0.5 V
p-p
DC
0.1V~3V
0.1V
0.1
0.01V
1V
1
0.1V
3V
3
0.3V
Table A.29 Test Records of Horizontal Measurement Accuracy of Oscilloscope
Width of tested pulse signal
ms()
Measured value of 4992A
(ms)
Error
Acceptable range
Conclusion
200
3%
Table A.30 Cable Test Records
Measurement Item
Measured value of 4992A
Acceptable range
Conclusion
SWR measurement accuracy
(130MHz)
1.22~1.49
SWR measurement accuracy
(300MHz)
1.77~2.15
SWR measurement accuracy
(500MHz)
2.50~3.04
SWR measurement accuracy
(700MHz)
2.80~4.20
SWR measurement accuracy
(1000MHz)
3.18~4.75
DTF measurement accuracy
4m
10%
Summary of Contents for 4992A
Page 1: ...I 4992A Radio Test Set User Manual China Electronics Technology Instruments Co Ltd...
Page 2: ......
Page 5: ......
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Page 23: ...Article I Handling Instructions 11 Article I Handling Instructions...
Page 93: ...81 Article II Technical Specifications...
Page 132: ...Article III Maintenance Instructions 120 Article III Maintenance Instructions...
