NARDA PMM 9010 Series, User Manual

Page: 103 / 284

Click Mode Operating Instructions 10-11
10.7 Setup
Due to the complexity of the discontinuous disturbance test, this panel is
rather complex, as many parameters shall be defined.
However, the PMM 9010 has been designed to be extremely user-friendly
and to take care in a fully automatic way of all the necessary steps of the
test.
Due to the fact that the Standard fixes the frequencies at which the
test shall be done, these frequencies have been uniquely assigned by
factory and the User cannot modify them; nevertheless it is possible
to select an arbitrary Frequency Value for "Idle Mode" instead, useful
for debugging purposes.
From the main Click window, select SETUP and the main Setup panel will
be displayed.
The User can navigate through the different parameters rotating the control
knob.
10.7.1 External
attenuator In case an external attenuator is used to protect the input of the analyzer,
the value of this attenuator can be entered, in order to have the PMM 9010
taking into account the value in all calculations of measured levels.
The way to enter the value of the attenuator is the same adopted in all the
other modes (see for examples §4.2).
The inserted value will be displayed together with the others automatically
adjusted by the receiver; all such attenuations values will be resumed
between brackets at the top right of the screen, where the External
Attenuator value will appear as the last shown number.
The 1st value between brackets is the one automatically assigned by 9010
receiver according to the selected Limit, in order to guarantee the proper
input sensitivity defined by the Standard.
The 2nd value between brackets is a fixed number instead, depending only
on the attenuation provided by the 4 channels simultaneous click detection,
i.e. two numbers only will appear in the sum between brackets when the
PMM 4-Channels Click Extension Box will not be used (PMM 9010 Click4E
option).
A 20dB external attenuator is provided in the PMM 9010-Click Option kit,
which has to be taken into account in this field when inserted at the RF
input.