NARDA PMM 7010 Series, User Manual

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Sweep Mode Operating Instructions 3-3
3.3 Detectors
PMM 7010 has been designed to allow the use of many kinds of detectors.
CISPR Standard has introduced the application of two detectors that are
derived from the Root Mean Squared and from the Average ones.
3.3.1 RMS-AVG
Definition The RMS-Average detector is a payment special function implemented in
the PMM 7010 receiver.
RMS-Average detector is manufactured under license of Rohde & Schwarz
GmbH & Co. KG.
The RMS-Average detector, according to the CISPR 16-1-1 standard,
supplies a reading of the input signal that is weighted, for repeated pulses,
such that for a constant indication, the relationship between amplitude and
repetition frequency is in accordance with the following rule:
The Amplitude is proportional to (repetition frequency)-1/2
The value is the maximum level during the measurement time (Hold Time)
and the averaging is carried out with a lowpass filter of the 2
nd order to
simulate a mechanical instrument.
The calibration is in reference to the RMS value of an unmodulated sine wave
signal.
3.3.2 RMS-AVG
Activation
Procedure
(option)
To enable the RMS-AVG Detector use the 7010 Set code Utility.
For further information on software installation refer to the “Updating
firmware and Activation code Utility” chapter.
When the 40 Digit Serial Code is sent to the instrument by the Dongle Code
Window, selecting the
Write RMS-AVG Dongle button.
Then press OK to confirm.
The software will inform that the Dongle Code has been successfully stored.
Press Ok to close the program.
If the Dongle code is not valid an error message appears.