HP 181A Disconnect the test setup, 5Disconnect the test setup, 100 MHz to 200 MHz Sensitivity for HP 53181A, 200 MHz to 225 MHz Sensitivity for HP 53181A

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Chapter 1 Performance Tests

Test 2: Channel 1 Frequency Sensitivity (HP 53181A Only)

100 MHz to 200 MHz Sensitivity for HP 53181A1Change the signal generator settings to 110 MHz at −30 dBm.

2Increase the power level by 0.1 dB steps until the Counter displays a stable 110 MHz reading.

The Counter should read 200 MHz when the input signal level is ≤ −17.5 dBm (30 mVrms).

3Sweep the signal generator frequency from 100 MHz to 200 MHz.

The Counter should read frequencies from 100 MHz to 200 MHz when the input signal level is ≤ −17.5 dBm (30 mVrms).

4Record the actual reading in the Performance Test Record (Test 2, Line 2).200 MHz to 225 MHz Sensitivity for HP 53181A1Change the signal generator settings to 200 MHz at −30 dBm.

2Increase the power level by 0.1 dB steps until the Counter displays a stable 200 MHz reading.

The Counter should read 200 MHz when the input signal level is ≤ −15.0 dBm (40 mVrms).

3Sweep the signal generator frequency from 200 MHz to 225 MHz.

The Counter should read frequencies from 200 MHz to 225 MHz when the input signal level is ≤ −15.0 dBm (40 mVrms).

4Record the actual reading in the Performance Test Record (Test 2, Line 3).

5Disconnect the test setup.

1-54 Assembly-Level Service Guide