Interference Analyzer Mode (Option 25) - Anritsu spectrum master ms2711d User Manual

Chapter 3 Key Functions

Interference Analyzer Mode (Option 25)

The Interference Analyzer option provides several different ways to determine the nature
and source of an interfering signal. Selecting Interference Analyzer from the mode menu
causes the soft keys, described below, to be displayed and the corresponding values shown
in the message area.
To select Interference Analyzer mode, press the MODE key, use the Up/Down arrow key to
highlight Interference Analysis and press ENTER.
FREQ/SPAN
Center — Sets the frequency at the center of the display. Frequencies can be entered in
units of GHz, MHz, kHz or Hz. When the center frequency is entered, the labeling below
the grid shows the center frequency and the span in the most appropriate units based on the
value.
Span — Sets the width of the measurement window in GHz, MHz, kHz or Hz. The center
frequency and span are displayed in the message area at the bottom of the status window.
Start ¾ Enter a start frequency value (in GHz, MHz, kHz or Hz) using the Up/Down arrow
key or keypad, press ENTER to accept, ESCAPE to restore. If the entered start frequency
is greater than the current stop frequency, the stop frequency is automatically adjusted to be
the same as the start frequency (zero span).
Stop ¾ Enter a stop frequency value (in GHz, MHz, kHz or Hz) using the Up/Down ar-
row key or keypad, press ENTER to accept, ESCAPE to restore. If the entered stop fre-
quency is lower than the current start frequency, the start frequency is automatically
adjusted to be the same as the stop frequency (zero span).
Signal Standard ¾ Opens a menu of soft keys used to select the signal standard to be
used.
Select Standard ¾ Opens the signal standard menu, showing the currently selected signal
standards. Use the soft keys to navigate the list. Press the Show All soft key to show the
complete signal standard list. When the complete list is displayed, the currently selected
signal standards are marked with an asterisk. Press the Show Selected soft key to show
only the currently selected signal standards.
Select Channel ¾ Sets the channel information for the available standard. If the particular
standard has not been used before, the channel number will default to the lowest legal chan-
nel number for that standard. If that standard has been used before, the last used channel
will be the default.
Uplink ¾ Selects the bank of frequencies that correspond to signals sent from the client
transmitter to the base station.
Downlink ¾ Selects the bank of frequencies that correspond to the signals sent from the
base station to the client receivers.
Back ¾ Returns to the previous menu.
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