1 Performance Tests - Verifying Specifications32 Keysight 53147A/148A/149A Assembly Level Service Guide3 Connect an Keysight 10503 Series Coaxial Cable between the RF outputconnector on the Keysight 3325A/B Synthesizer and the 50Ω feedthroughterminator on the Counter’s CHANNEL 1 connector.Figure 1-3 10 Hz to 20 MHz Frequency Sensitivity Test Setup4 Verify that the Counter is still set to use an external reference signal (refer tosteps 5 through 10 on page 25).5 Set the output of the Synthesizer to the first frequency specified for “Test 1a”in the “Performance Test Record” on page 51 (10 Hz).6 Set the power output of the Synthesizer to the first power value specified for“Test 1a” in the “Performance Test Record” on page 51 (–14.9 dBm/40 mV).7 Record the frequency value read on the Counter (±1 count) for “Test 1a” in the“Performance Test Record” on page 51.8 Repeat steps 5, 6, and 7 for each of the remaining frequencies specified for“Test 1a”. Don’t forget to change the power level when performing the 1 KHztest (–19.2 dBm/25 mV).9 If all of the frequency values you recorded for “Test 1a” are correct, mark Passin the Performance Test Record for “Test 1a”. If any of the frequency readingsyou recorded are incorrect, mark Fail in the Performance Test Record.Keysight 3325A/BSynthesizerKeysight53147A/48A/49AOutputChannel 1To ReferenceOutput(RearPanel)To ReferenceOutput(RearPanel)
