NARDA PMM CA0010, User Manual, Page: 55 / 74

Sweep Mode Operating Instructions 4-9
Once the scan starts, it can be stopped at any time during the execution by
clicking the
Stop function key that appears during the scan.
4.5 Stop When clicking the Stop button, a popup choice appears on the screen.
It allows deciding if definitively aborting current test, pausing it or proceeding
to the following step.
When paused, the step can be resumed by clicking the proper soft button.
Using 0 dB attenuation, PMM 9010F has no input protection.
This is a potentially dangerous condition for the input stage of the
receiver.
Use 0 dB attenuation only if you are very sure that your input signal is
less than 3.2 V (or 130 dB
μ
V).
Before to apply an unknown signal to PMM 9010F receiver, use an
oscilloscope or a wide band RF voltmeter to measure it.
The CA0010 sets its internal attenuator automatically as function of the
threshold level for the measurement. The User can verify the adopted
attenuation.
If needed, add an external coaxial attenuator in the input signal line.
In case it is required, add an external attenuator to carry on the
measurement, without overpassing the declared limit for continuous power
or spectral density.
When the PMM CA0010 is used the Preselector filters are always enabled.
The
Preselector is composed by a group of filters automatically selected by
the analyzer. The aim of the preselector is to reduce the amount of out-of-
band energy entering in the receiver, thus helping a lot in reducing saturation
risks, intermodulation problems and similar undesired behaviors.
.
It is suggested to turn off the the internal Generator, when it is not
used, to achieve the maximum sensitivity.