Agilent Technologies 4352B, Service Manual

Page: 58 / 293

6. Set the 4352B Measurement Controls as follows:
Control Settings K eystrokes
RF A TTEN = 0 dB
4 Sense Range 5 ,
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RF ATTEN , 4 0 5 , 4 x1 5
CENTER = 1 GHz
4 Menu 5 ,
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SWEEP ,
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CENTER , 4 1 5 , 4 G/n 5
SP AN = 10 MHz
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SPAN , 4
1
5 , 4
0
5 , 4
M/
5
RES BW = 1 kHz
4 Bw/Avg 5 ,
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RES BW , 4 1 5 , 4 k/m 5
7. Set the signal generator (SG#2) output to 1 GHz, 12 dBm.
8. Set the signal generator (SG#3) output to 0.999 GHz, 12 dBm.
9. Turn the SG#2 signal output ON, and turn the SG#3 signal output OFF .
10. Record the power meter reading as PM1.
11. Turn the SG#1 signal output OFF , and turn the SG#2 signal output ON.
12. Set the step attenuator to 0 dB .
13. Record the power meter reading as PM2.
14. Turn both SG#2 and SG#3 signal outputs ON.
15. Set the step attenuator to 50 dB .
16.
Press 4 T rigger 5 ,
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SINGLE to make a measurement. W ait until a sweep is completed.
17.
Press 4
Menu
5 ,
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MKR SEARCH ,
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MAX to move the marker to the SG#2 frequncy point. Note the
4352B reading as SA1. Press
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SEARCH: PEAK ,
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NEXT PEAK to move the marker to the SG#3
frequency point. Note the 4352B reading as SA2.
18. Calculate the following formula:
T est Result(dB) = (SA1 - SA2) - (PM1 - PM2 - Cal.value of Step attenuator(50 dB @ 1GHz))
Record the test result on the P erformance T est Record.
19. Set the SG#3 output frequency in accordance with the following list, and repeat steps 16
through 18.
0.998 GHz
0.997 GHz
0.996 GHz
0.995 GHz
1.001 GHz
1.002 GHz
1.003 GHz
1.004 GHz
1.005 GHz
P erformance T ests 2-27