Chapter 6 6-37
Front-Panel Key Reference
FREQUENCY Channel
FREQUENCY Channel
Activates the center frequency function, and accesses the menu of
frequency functions. The center frequency, or start and stop frequency
values appear below the graticule on the display.
Although the analyzer allows entry of frequencies greater than the
specified frequency range, using frequencies greater than the frequency
span of the analyzer is not recommended
NOTE When changing both the center frequency and the span, change the
frequency first since the span can be limited by the frequency value.
CAUTION When operating in DC coupled mode on spectrum analyzers with
Option UKB, take care to protect the input mixer by limiting the input
level to 0 VDC and +30 dBm.
Center Freq Activates the center frequency function which allows you to set the
horizontal center of the display to a specific frequency.
Start Freq Sets the frequency at the left side of the graticule. The left and right
sides of the graticule correspond to the start and stop frequencies.
When these frequencies are activated, their values are displayed below
the graticule in place of center frequency and span.
Stop Freq Sets the frequency at the right side of the graticule. The left and right
sides of the graticule correspond to the start and stop frequencies.
When these frequencies are activated, their values are displayed below
the graticule in place of center frequency and span.
CF Step Auto Man Changes the step size for the center frequency function. Once a step
size has been selected and the center frequency function is activated,
the step keys change center frequency by the step-size value. The step
size function is useful for finding harmonics and sidebands beyond the
current frequency span of the analyzer. When auto-coupled, the center
frequency step size is set to one division (10 percent of the span).
Freq Offset Allows you to input a frequency offset value that is added to the
frequency readout of the marker, center frequency, start frequency and
stop frequency, to account for frequency conversions external to the
analyzer. Offsets may only be entered using the numeric keypad.
Offsets are not added to the span or frequency count readouts. Entering
an offset does not affect the trace display. To eliminate an offset, press
Preset or Freq Offset, 0, Hz.
To Next Page
Loading...
Need help?
General
