4-2
Sweep Mode Operating Instructions
The Sweep mode function is divided into five sub windows:
•
Measure
•
Limit
•
Display
•
Marker
•
Load Store
Always use Esc button to return to the previous view/condition.
4.2 Measure
The
Measure
button is used to set the scan parameters and to run the
sweep.
After having chosen the frequency band and set all the other parameters it is
possible to run the measurement scan simply touching the
Exec Sweep
button.
To make subsequent sweeps with the same setting parameters, simply
press
ReDo Sweep.
This key is particularly useful after having loaded a
previously stored track (see 4.6), as with the Re Do Sweep the original
settings are kept for the new measurement: it is extremely easy to make
comparisons, for example, before and after a modification of the EUT.
Once the scan starts, it can be stopped at any time during the execution by
the
Stop
function key that appears during the scan.
4.2.1 Frequency
The
Frequency
menu features five function buttons:
Pressing
A Band
the receiver will be set to scan the 9 - 150 kHz frequency
band. The definition of band A is a given in CISPR.
Pressing
B Band
the receiver will be set to scan the 0,15 - 30 MHz
frequency band. The definition of band B is a given in CISPR.
Pressing
A + B Band
the receiver will be set to scan the entire band from 9
kHz to 30 MHz.
Using these automatic band settings, the Frequency Step and Resolution
Bandwidth are set automatically according to CISPR standard requirement.
The
Start
and
Stop
frequency buttons can be used to set any frequency
interval for the measurement; to enter the frequency values press the
corresponding function keys.
Pressing either one of these 2 keys the figures 0, 1, 2, 3, and 4 are
selectable at first; with the right arrow key it is possible to select the figures
from 5 to 9, and pressing again the right arrow key the units kHz, MHz and
GHz becomes accessible, as well as the decimal dot and the Back Space.
The left arrow key can be used as well to move back and forth from one
screen to the other. Pressing 0 as the first figure the decimal dot appears
automatically.
To set a given frequency it is therefore enough to edit the value with the soft
keys and the left an right arrows, confirming the selections entering the units
value (kHz, MHz or GHz).
The figures entered appear in a small window just below the graph and the
default unit is MHz.
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