Performance Test & Calibration
Manual 20791, Rev. C, June 2001 4-9
2. Set the step attenuator to 0 dB after the 8003 chimes to signal the completion of the zeroing
process.
3. Set the power output of the RF source so that the thermistor power meter indicates 1.00 mW
±
0.025 mW.
4. Record the calculated power meter reading and the displayed 8003 reading in the correct
columns of the Linearity Data Recording sheet on page 4-14.
5. Set the power output of the RF source so that the thermistor power meter indicates 3.98 mW
±
0.10 mW.
6. Record the new calculated power meter reading and the new displayed 8003 reading as in
Step 4, above.
7. Set the power output of the RF Source so that the thermistor power meter indicates 5.01 mW
±
0.10 mW.
8. Record the new calculated power meter reading and the new displayed 8003 reading as in
Step 4, above.
9. Repeat using the power meter indications in the data sheet on page 4-15. Note that the Step
Attenuator is used to generate the remaining 70 dB range of 10 dB steps for a total range of
80 dB. Repeat Step 1, above, between each 10 dB step shown on the Linearity Data Recording
sheet.
10. Make the calculations indicated on the Linearity Data sheet, and enter the values in the
appropriate blank spaces.
11. Repeat Steps 1 through 10 using the Swept Mode (1 second sweep), and record the results on
the Swept Linearity Data sheet (page 4-16).
[DEFINE] [SWEPT]
NOTE:
In the Swept mode it is necessary to calculate the linear power from
the dBm reading on the 8003. Also, be sure that the Start and End
frequencies are set to 50 MHz.
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