Agilent Technologies 54503A User's Guide Page 191

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Chapter 4 191
Key Function Descriptions
Key Function Tables
FULL BAND AUX CTRL
Selects commonly used frequency bands above 18 GHz
and activates the harmonic lock function.
FULL IF ADJ CAL
Executes a complete adjustment of the IF system for
optimum measurement accuracy.
GATED METHOD MEAS/USER
Makes adjacent channel power (ACP) measurements
using time gating techniques.
IF ADJ ON OFF CAL
Switches the automatic IF adjustment on and off.
When it is on, various IF parameters are adjusted
during retrace to ensure amplitude accuracy within
specifications. If this function is turned off, an A
appears on the left side of the display.
INTERNAL MIXER AUX CTRL
Accesses a menu of signal identification functions or
returns the spectrum analyzer from external mixer
mode to its internal frequency coverage.
LAST STATE PRESET,
RECALL
Recalls the state that existed before preset was
pressed or power was turned off.
LO FREQ CAL
Displays the first local oscillator frequency
corresponding to the current start frequency.
LOCK HARMONIC AUX CTRL
Displays the number of the harmonic currently used to
sweep the selected frequency band. Only frequencies
and spans that fall within the frequency band of the
current harmonic may be entered.
LOCK ON OFF AUX CTRL
Turns the harmonic lock on and off. When it is on, it
performs the same function as LOCK HARMONIC.
MAN TRK ADJ AUX CTRL
Permits manual adjustment of the tracking generator
oscillator using the data keys, the step keys or the
knob.
MARKER DELTA AUX CTRL
Reads the difference in amplitude and in frequency (or
time when the span equals 0 Hz) and displays these
values.
MARKER NORMAL AUX CTRL,
CAL
Activates a single marker and places it at the center of
the trace.
MEAS/USER
Accesses softkeys for automatic functions and user
defined functions like, power measurements, adjacent
channel power, bandwidth measurements, and FFT
measurements.
METHODS MEAS/USER
Selects the measurement method that will be used to
make the adjacent channel power measurement.
Table 4-2 Instrument State Functions
Instrument State
Keys
Access Key
Description
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