Test 2: Channel 2 Frequency Sensitivity; Test 2A: 50 Mhz To 20 Ghz Frequency Sensitivity - Agilent Technologies 53147A Assembly Level Service Manual

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Chapter 1 Performance Tests

Test 2: Channel 2 Frequency Sensitivity

Test 2: Channel 2 Frequency Sensitivity
This set of tests verifies the frequency-sensitivity specifications of
Channel 2 of the Agilent 53147A/148A/149A's Frequency Counter.
Equipment Required
Agilent 83650B Synthesizer
Agilent 437B Power Meter
Agilent 8487A/D Power Sensor
Agilent 11667C Power Splitter
Agilent 11730A Power Sensor Cable (provided with 53147A/148A/149A)
Agilent 8490D (Opt. 020) 20 dB Attenuator
Agilent 11904D 2.92 mm (m) to 2.4 mm (f) Adapter
Agilent 10503 series Coaxial Cable (BNC m to m)
2.4 mm (m) to 2.4 mm (m) Cable (2)

Test 2a: 50 MHz to 20 GHz Frequency Sensitivity

• To ensure that the test results are valid, the instrument and the test
equipment should be powered on for at least 30 minutes prior to
beginning the tests. This allows the internal temperatures of the
equipment to stabilize.
This test is appropriate for the Agilent 53147A, 53148A, and 53149A.
•
Connect the Agilent 11904D 2.92 mm (m) to 2.4 mm (f) Adapter to the
Counter's CHANNEL 2 input connector (refer to Figure 1-5 for steps 1
through 4).
Connect the Agilent 8490D Attenuator to the Agilent 11904D Adapter,
as shown in Figure 1-5 (the other end of the Attenuator should remain
connected to the Agilent 11667C Power Splitter).
Verify that the cable (with Adapter) is still connected between the
RF output of the Agilent 83650B Synthesizer and the Power Splitter
input connector.
Assembly Level Service Guide 1-23