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Performance Verification
4-24
2715 Spectrum Analyzer Service Manual
2. Select the following settings on the Spectrum Analyzer:
VERTICAL SCALE 10 dB/
DISPLAY STORAGE Off
SWEEP RATE 1 ms/DIV
3. Enable external video by pressing DSPL 7. The Spectrum Analyzer
automatically selects ZER O SPAN.
4. Connect a 100 kHz square wave signal to Pin 1 of J103 on the rear panel of
the Spectrum Analyzer. See Figure 4--4.
5. Set the F unction Generator output for 1 division or less of signal at the top of
the screen. Use an external attenuator if necessary.
6. Enable internal triggering by pressing SWP/TRIG 1.
7. Check that the trigger LEVEL control can be set for a triggered display.
8. Using another cable and T Adapter, connect the same square wave source to
the EXT TRIG input (J102) on the Spectrum Analyzer rear panel.
9. Set the generator controls for a 15 Hz, 2 Vp-p signal.
10. Enable external triggering by pressing SWP/TRIG 2.
11. Press SWEEP ↑ until the readout reads 10MS/.
12. Check that the trigger LEVEL control can be set for a triggered display.
13. Remove the cable from the EXT TRIG input.
14. Enable line triggering by pressing SWP/TRIG 3.
15. Check that the trigger LEVEL control can be set for a visible display. The
display will not be stable.
16. Disconnect the Function Generator from the RF INPUT.
Performance requirement is --30 dBm ± 0. 3 dB at 100 MHz ± 2kHz.
H Test equipment required:
Min loss attenuator, 50 -- 75 Ω
Signal Generator
Frequency C ounter
Power Meter with High Sensitivity Sensor
1. Recall default power up settings by pressing UTIL 1 1.
Internal Calibrator