User's Manual Part 3

Power Delta Calibration – continued
Mar 2001
I-7
SCt4812T CDMA BTS Optimization/ATP
DRAFT
Figure I-4: Delta Calibration Setup – R3561L to R3465
R3561L
RF OUT
INPUT
Short RF Cable
R3465
FW00804
HP8935 Power Delta
Calibration
Follow the procedure in Table I-3 to perform the HP8935 Power Delta
Calibration procedure.
Table I-3: HP8935 Power Delta Calibration Procedure
Step Action
* IMPORTANT
Perform this procedure after test equipment has been allowed to warm–up and stabilize for a minimum
of 60 minutes.
1 Connect a short RF cable between the HP8935 Duplex Out port and the HP437B power sensor (see
Figure I-5).
2 Set the HP8935 signal source as follows:
– Measure mode to CDMA Gen
– Frequency to the CDMA Calibration target frequency
– CW RF Path to IQ
– Output Port to Dupl
– Data Source to Random
– Amplitude to 0 dBm
3 Measure and record the power value reading on the HP437B Power Meter.
4 Record the Power Meter reading as result A ________________________.
5 Turn off the source HP8935 signal output, and disconnect the HP437B.
NOTE
Leave the settings on the source HP8935 for convenience in the following steps.
6 Connect the short RF cable between the source HP8935 Duplex Out port and the RF–IN/OUT port
(see Figure I-6).
7 Ensure that the source HP8935 settings are the same as in Step 2.
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