7-5
7.3 Performance Test
7.3.1.2 Continuous Frequency Measurement on Input2 (50
Ω : 10 MHz to 1 GHz)
(1) Test specifications
•Frequency range : 10 MHz to 1 GHz
• Input sensitivity : 25 mVrms
• Measurement accuracy : ±1 count × time base accuracy × measurement frequency
(2) Test equipment
• Signal generator
• Power meter
• Power sensor
(3) Test procedure
1) Set the unit to preset values and set the input channel to Input2.
2) Connect the Reference Output terminal on the back of the unit to the external standard input on the signal genera-
tor.
3) Use a measurement cable to connect the signal generator output connector to the power meter input connector.
4) Adjust the signal generator output level to the rated sensitivity of the power meter.
5) Disconnect the measurement cable you connected to the power meter input connector and connect it to the unit’s
Input2 connector.
6) Check that the output frequency of the signal generator is being displayed on the counter.
7) Disconnect the measurement cable you connected to the unit’s Input2 connector, change the output frequency of
the signal generator, repeat steps 3) to 6), and check that frequency is properly displayed within the specified
range.
7.3.1.3 Continuous Frequency Measurement on Input2 (1
Ω : 10 Hz to 10 MHz)
(1) Test specifications
•Frequency range : 10 Hz to 10 MHz
• Input sensitivity : 25 mVrms
• Measurement accuracy : ± 1 count ± time base accuracy × measurement signal frequency ± trigger error
(2) Test equipment
• Signal generator
• Power meter
(3) Test procedure
1) Set the unit to preset values, set the input channel to Input2, and then set the impedance to 1 MΩ and ATT to Off.
2) Connect the Reference Output terminal on the back of the unit to the external standard input on the signal genera-
tor.
3) Use a measurement cable to connect the signal generator output connector to the power meter input connector.
4) Adjust the signal generator output level to the rated sensitivity of the power meter.
5) Disconnect the measurement cable you connected to the power meter input connector and connect it to the unit’s
Input2 connector.
6) Check that the output frequency of the signal generator is being displayed on the counter.
7) Disconnect the measurement cable you connected to the unit’s Input2 connector, change the output frequency of
the signal generator, repeat steps 3) to 6), and check that frequency is properly displayed within the specified
range.
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