Performance Verification
2715 Spectrum Analyzer Service Manual 4-5
Performance requirementis 7:1 or less for Bandwidths ≤1MHz.
1. Recall default power up settings by pressing UTIL 1 1.
2. Select the following settings on the SpectrumAnalyzer:
FREQUENCY 100 MHz
REFERENCE LEVEL --30 dB m
SPAN/DIV 1 MHz
RESOLUTION BW 1 MHz
VID FLTR On
VERTICAL SCALE 10 dB/div
SWEEP AUTO
3. Enable the calibrator by pressing INPUT 9.
4. Enable MAX/MIN ACQUISITION MODE by pressing DSPL 4.
5. Press APPL 9 0 and enter -- 6 dBc. Press BKSP and 0to activate bandwidth
mode (exits the menu).
6. The marker readout displays the bandwidth of the filter6 dB down from
peak amplitude. Make a note of this value.
7. Check that the ratio of the 60 dB bandwidth to the6 dB bandwidth is 7:1 or
less.
8. Using Table4 --2, verify that the --60dB creadings for the other resolution
bandwidth filters are no morethan 7X the --6 dBc reading.
9. Exit bandwidth mode by pressing MKR/∆/OFF.
Table4 -2: Settings for Shape Factor Check
Span/Div ResolutionBandwi dth
1MHz 1MHz
200 kHz 300 kHz
100 kHz 100 kHz
10 kHz 30 kHz
10 kHz 10 kHz
5 kHz 3 kHz
1 kHz 1 kHz
1 kHz 300 Hz
Resolution BandwidthShape Factor