Chapter VII Performance feature test
118
-70
-70
3
-90
-90
3
-110
-110
3
Table A.22 (continued) Test Records of Amplitude Measurement Accuracy of Spectrum Analyzer
Port
Frequency
Input power (dBm)
Measured value of 4992A
(dBm)
Acceptable range
(dBm)
Conclusion
T/R
3MHz
20
20
3
0
0
3
-20
-20
3
-50
-50
3
499MHz
20
20
3
0
0
3
-20
-20
3
-50
-50
3
999MHz
20
20
3
0
0
3
-20
-20
3
-50
-50
3
Table A.23 Test Records of Frequency Measurement Accuracy of Audio Meter
Frequency of tested audio
signal(Hz)
Measured value of 4992A
(Hz)
Acceptable range (Hz)
Conclusion
20
20
2
1,000
1,000
2
20,000
20,000
2
Table A.24 Test Records of Voltage Measurement Accuracy of Audio Meter
Range
Audio
frequency
(Hz)
Audio amplitude
(mVrms)
Acceptable range
(mVrms)
Measured value of
4992A
(mVrms)
Conclusion
0.01V~3V
20
20
20±6
1,000
1,000±55
2,000
2,000±105
1,000
20
20±6
1,000
1,000±55
2,000
2,000±105
20kHz
20
20±6
1,000
1,000±55
2,000
2,000±105
Table A.25 Test Records of Distortion Measurement Accuracy of Audio Meter
ZN5541
setting
Measured value of
VA-2230A
Measured value of
4992A
Measurement
error
Acceptable
range
Conclusion
1%
±0.15%
10%
±0.6%
20%
±1.1%
Summary of Contents for 4992A
Page 1: ...I 4992A Radio Test Set User Manual China Electronics Technology Instruments Co Ltd...
Page 2: ......
Page 5: ......
Page 6: ......
Page 7: ......
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...
