Performance Verification
4-28 2715 Spectrum Analyzer Service Manual
Performance requirement is 1.5 :1 or better.
Test equipmentrequired:
HAll instruments except Optio n 50 - 75 ΩVSWR Bridge with
50 -- 75 Ωmatching pad on RF in and RF out Test Spectrum
Analyzer with Tracking Generator
HOption 50 instruments - 50 ΩVSWR Bridge. No matching pad on
RF in and RF out Test Spectrum Analyzer wit h Tracking Generator
1. Recall default power up settings by pressing UTIL 1 1.
2. Connect the test equipment as shown in Figure 4--5. Do not connect the
VSWR Bridge to the Sp ectrum Analyzer.
2715Spectrum Analyzer
1stLO
50Ωor 75Ω
VSWR Bridge
2ndLO
TestSpectrum Analyzer
Tracking
Generator
RF Input
50/75ΩPad
(75Ωbridge only)
50/75ΩPad
(75Ωbridge only)
RF INPUT OUT
RF out RF in
Figure 4- 5: TestEquipment Setup for Checking Return Loss
3. Select the following settings on the test spectrumanalyzer:
Reference Level 0 dBm
Span/div Max Span
Vertical Scale 10dB /div
4. Set the TrackingGenerator output level at 0 dBm.
VSWR