Performance Verification
4-8 2715 Spectrum Analyzer Service Manual
Table4 -4: Front Panel Span Accuracy Settings
TimeMarkers
Center
Frequency Span/Div
Resolution
Bandwidth
Specification
Range
10 ns 500 MHz 100 MHz 300 kHz 776--824 MHz
20 ns 250 MHz 50 MHz 300 kHz 388--412 MHz
50 ns 100 MHz 20 MHz 300 kHz 155.2--164.8 MHz
0. 1 s50 MHz 10 MHz 30 kHz 77.6--82.4 M Hz
0.2 s25 MHz 5MHz 30kHz 38.8--41.2 MHz
0.5 s10 MHz 2MHz 30kHz 15.52--16.48 MHz
1s5MHz 1MHz 30 kHz 7.76--8.24MHz
2s2.5 MHz 500 kHz 30 kHz 3.88--4.12 MHz
5s1MHz 200 kHz 3 kHz 1.552--1.648 MHz
10 s500 kHz 100 kHz 3kHz 776--824kHz
20 s250 kHz 50 kHz 3 kHz 388--412 kHz
50 s125 kHz 20 kHz 3 kHz 155.2--164.8 kHz
0.1 ms 62.5 kHz 10 kHz 3kHz 77.6--82.4 kHz
0.2 ms 25 kHz 5kHz 300 Hz 38. 8--41.2kHz
0.5 ms 25 kHz 2kHz 300 Hz 15. 52--16.48kHz
1.0 ms 25 kHz 1kHz 300 Hz 7. 76--8.24kHz
Performance requirement is ±2.0 dB with 10 dB of RF ATTENUATION
referenced to 100 MHz.
1. Select the following settings on the Spectrum Analyzer:
FREQUENCY 100 MHz
REFERENCE LEVEL --20 dB m
SPAN/DIV MAX
VERTICAL SCALE 1 dB/
2. Connect the output of the sweep oscillator as follows:
HOption 50 instruments - Connect the output to the input of thespectrum
analyzer.
HAll instruments except Option 50 - Connect theoutput through the
precision min-loss pad to the input of thespectrum analyzer.
3. Set the frequency of thesweep oscillator to 100 MHz, adjust the amplitude
for 5 divisions of signal. The sweep rateshould be on its slowest setting.
4. Press Ato enable the Display A register. Start the sw eep on the sweep
oscillator and press MAXHOLDABonthe 2715.
Flatness