Agilent Technologies 8924C Product Notes page 7

6. Configure the spectrum analyzer and software
as described in Section 8—Configuring the
Spectrum Analyzer and Software. Enter the
recorded delay time into the DELAY field of the
Time Response/Open Setup function, see Figure 6.
7. Turn on the CDMA phone. On the test set's
CDMA TRANSMITTER POWER RANGE TEST
screen, set the following:
7a. Set Closed Loop Pwr Cntl field to Closed Loop
(see Figure 5, item 1).
7b. Set Sctr A Pwr field set –40 dBm (see Figure
5, item 7).
7c. Set Output Atten Hold field (see Figure 5,
item 8) to Off.
7d. Set Traffic Data Mode to Svc Opt 1 (see Figure
4, item 3, this will be changed to Svc Opt 2
in step 9), or to normal voice-call service
option for the phone type.
8. Select the test set's CDMA CALL CONTROL
screen. After the phone indicates service, dial a
number and place a call from the phone to the
test set. Wait until the call is connected.
9. Press the test set's END CALL key.
9a. Set the Traffic Data Mode to Svc Opt 2
9b. Press the test set's CALL key to connect a
call in data loopback mode at full rate.
(The phone will usually display a message
indicating LOOP MODE.)
10. Once a call is connected, go to the CDMA
TRANSMITTER POWER RANGE TEST screen
on the test set and:
10a. Change the Closed Loop Pwr Cntl field from
Close Loop to Open Loop (see Figure 5, item 1).
10b. Change the Output Atten Hold field to on (see
Figure 5, item 8).
10c. Change the Sctr A Pwr field to –60 dBm (see
Figure 5, item 7). Remember to use up and
down arrows.
11. On the spectrum analyzer, on the Time
Response screen (see Figure 6), select the OPEN
LOOP softkey. This will start the open loop time-
response test. The message Waiting for Ext Trig
appears on the screen (see Figure 7) after a
short delay
12. Press the SET REF LVL softkey (see Figure 7, item
2). Enter 15 dBm. Press the ENTER key. This
adjusts the spectrum analyzer's input attenua-
tor and reference level to allow viewing of the
full range of power transitions.
13. Step increase Sctr A Pwr field to –40 dBm. The
time response will be displayed on the spec-
trum analyzer.
Figure 7. Spectrum Analyzer Waiting for External Trigger
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