Fluke PM6685, Руководство по обслуживанию

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Options
Prescaler
This extra HF input (PM9624) is easily recognized by its front panel
connector (Input C, type N).
–
Connect the output of the signal generator to the HF input of
the counter.
–
Connect the 10 MHz REFERENCE OUT of the generator to
the REFERENCE IN at the rear panel of the counter.
Setting for the counter after Preset.
– Function = FREQ C.
–
EXT REF.
Generate a sine wave in accordance with the following table.
–
Verify that the counter counts correctly. (The last digit will be
unstable).
Performance Check, Options 2-5
Frequency Amplitude Pass/Fail
MHz mV
RMS
dBm
100-300 20 –21
-2500 10 –27
-2700 20 –21
-3000 100 –7
Table 2-7
Sensitivity of the PM9624 HF input.
EX T
RE F
Fig 2-2
Connect the output of the signal generator to the HF
input of the counter.
Required Test Equipment Suggested Specification
HF signal generator 3.3 GHz
Table 2-8
Test equipment for 3.0 GHz HF input.