NARDA PMM ER9000, Руководство пользователя

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Operating Instructions 3-19
With the Peak, RMS and AVG detectors the smallest settable
measurement time depends on the RBW.
If several detectors are used contemporarily the Hold Time should be set
to meet the requirement of the slowest one, so that the results of the
measurement are correct for all them.
When a frequency change or an attenuation variation occurs, PMM ER9000
waits automatically the time needed to the internal circuits to overcome the
transient before the measurement time starts again.
3.3 RBW Filters The Resolution Bandwidth box is used to select the bandwidth of the
measuring filter.
The drop-down menu allows the User to select from the list, the filter desired.
These filters are mathematically modeled using digital techniques and,
concerning the 200 Hz, 9 kHz and 120 kHz, they are compliant to the CISPR
16-1-1 standard.
Other additional -6dB bandwidth filters are also available: please refer to the
instrument specifications paragraph for the complete list.
3.3.1 MIL Filters
The 100 Hz, 1 kHz, 10 kHz and 100 kHz provided filters are MIL-STD-461E
(they are not optional but always available).
When a non-CISPR filter is selected, the Quasi Peak, C-RMS and C-AVG
detectors are disabled.
Be sure not to overload PMM ER9000: the input signal should not exceed
the maximum level indicated in the main specifications in chapter 1.
The measuring time must be properly set in the Hold Time window to
allow the desired detectors to operate as intended.