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S:\HP8924C\USRGUIDE\BOOK\chapters\getstart.fb
Chapter 1, Getting Started
Verifying that the Test Set is Operating Properly
Verifying that the Test Set is Operating Properly
If your Test Set powers-up and displays the CDMA CALL CONTROL screen,
but you suspect an instrument problem, the CDMA Mode Quick Check will verify
operation of the instrument’s basic functions.
CDMA Mode Quick Check
NOTE: This procedure assumes that the Test Set is configured for cellular mobile station testing. If
necessary, access the CONFIGURE screen and turn PCS Intrfc Control Off
. It will then be
necessary to cycle power.
1. Remove any cabling from the front-panel connectors.
2. Turn instrument power on (if it is not already on).
3. Press the PRESET key.
4. Press and release the SHIFT key then the TESTS key to access the CONFIGURE
screen.
5. Position the cursor in the RF Display field, and press the knob to select Freq. The
RF Offset and (Gen)-(Anl)fields will appear below RF Display.
6. Change the (Gen)-(Anl) value to 0 MHz.
7. Position the cursor in the Output Port field and Select Dupl
.
8. Press GEN CTRL, +/-, 5, 0 ENTER to adjust Sector A Power to -50 dBm/BW.
9. Press and release the SHIFT key then the GEN CTRL key to access the CDMA
REVERSE CHANNEL SPECTRUM analyzer screen.
10. Position the cursor in the Ref Level field, and press +/-, 1, 0, ENTER to enter a
reference level of -10 dBm.
11. The display should show a CDMA signal, approximately 1.23 MHz wide.
If no failure is indicated by this test, but you still suspect a problem, refer to the
performance tests information in the HP 8924C Assembly Level Repair Manual.
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