Agilent Technologies 8560E User Manual page 223

Front-panel key access:
Adjusts the center-frequency step-size. When this
CF STEP AUTO MAN
function is in coupled (AUTO) mode and center
frequency is the active function, pressing a step key
yields a one-division shift (10 percent of span) in the
center frequency for spans greater than 0 Hz. For zero
span, pressing a step key when center frequency is the
active function yields a center-frequency shift equal to
25 percent of the resolution bandwidth. For manual
(MAN) mode, the step size can be adjusted using the
data keys, the step keys, or the knob. After entering a
step size and changing the active function to CENTER
FREQ, use the step keys to adjust the center frequency
by the step size selected. This function is useful for
quickly tuning to the harmonics of an input signal. For
example, to tune to the harmonics of a 300 MHz signal,
set CF STEP AUTO MAN to MAN and enter 300 MHz.
If the center frequency is at 300 MHz, pressing the step
key increases the center frequency to 600 MHz, which
is equal to the second harmonic. Pressing the STEP key
again increases the center frequency by another 300
MHz, to 900 MHz. CF STEP AUTO MAN indicates
whether the step size is in a coupled (AUTO) or manual
(MAN) mode. When the step size is in manual mode,
pressing CF STEP AUTO MAN returns the function to
coupled mode.
Front-panel key access:
Moves the marker locations to ±0.5 channel
CH EDGES→ ∆MKR
spacings from the center frequency. This allows power
measurements within a channel with the ∆MARKER
OCC BW softkey while multiple channels are shown in
the displayed frequency span.
Front-panel key access:
CHAN PWR OVER BW
in the channel power bandwidth specified by the
CHPWR BW [ ] softkey, and centered around the
spectrum analyzer center frequency. The center
frequency, reference level, and channel power
bandwidth must be set by the user.
Front-panel key access:
Moves the center frequency of the spectrum analyzer
CHAN DN
lower in frequency by one channel spacing.
Front-panel key access:
Chapter 4
FREQUENCY
AUTO COUPLE
MEAS/USER
Calculates the power and power spectral density
MEAS/USER
MEAS/USER
Key Function Descriptions
Key Descriptions
or
FREQUENCY
223