Chapter 1  Performance Tests
Test 5: Option 030/050/124 Channel 3 Frequency Sensitivity (HP 
53131A/132A Only)
1-32 Assembly-Level Service Guide
1
3 Increase the power level in 5 dB steps until the Counter displays a 
stable reading of approximately 2.5 GHz.
The Counter should display 2.5 GHz at 
≤ −
27.0 dBm (10 mVrms).
4 Sweep the frequencies from 2.5 GHz to 200 MHz.
The Counter should read frequencies from 2.5 GHz to 200 MHz at 
≤ −
27.0 dBm (10 mVrms).
5 Record the actual reading in the Performance Test Record 
(Test 5, Line 1).
2.7 to 3.0 GHz Sensitivity for Option 030 only
1 Disconnect the HP 8663A Synthesized Signal Generator from the 
Counter (see Figure 1-9), and connect the HP 8340B Sweep 
Oscillator to Channel 3 of the Counter.
2 Change the settings of the Sweep Oscillator to 3.0 GHz, 
−
40 dBm.
3 Increase the power level in 1 dB steps until the Counter displays a 
stable reading of approximately 3.0 GHz.
The Counter should display 3.0 GHz at 
≤ −
21.0 dBm.
4 Sweep the frequencies from 3.0 GHz to 2.7 GHz.
The Counter should read frequencies from 3.0 to 2.7 GHz at 
≤ −
21.0 dBm.
5 Record the actual reading in the Performance Test Record 
(Test 5, Line 2).
6 Disconnect the test setup.