HP 8590 E-Series User Manual page 252

is displayed if key number 1 has not been defined by the user. Key number I
No User
Menu can be defined by remote programming commands (KEYCMD or KEYDEF).
Front-Panel Key Access:
subtracts trace B from trace A and adds the result to the display line. The
NORMLIZE
result is displayed in trace A. The trace data is normalized with respect to the
ON OFF
display line even if the value of the display line is changed. This function
is executed on all subsequent sweeps until it is turned off. A minus sign
annotation while the function is active. To turn off the normalize function,
press NORMLIZE ON OFF so that OFF is underlined.
The normalize function is useful for applying correction data to a trace. For
example, store a measurement sweep of the response of a system in trace B.
Trace A can be used to measure the response of the system after a device is
added. Set NORMLIZE ON OFF to ON to subtract the system response from the
response of the device under test, to characterize the response of a device
under test.
Front-Panel Key Access: I=)
displays the display line and makes the display line function active. The trace
NORMLIZE
data is normalized with respect to the display line even if the value of the
POSITION
display line is changed.
Front-Panel Key Access: (-1
NTSC
allows you to trigger on the NTSC video format. Pressing NTSC alters the TV
line number that the spectrum analyzer triggers on internally; the line number
displayed when TV LINE # is pressed does not change. Pressing NTSC
changes the video modulation to negative; set TV SYNC NEG POS so that POS
is underlined if positive video modulation is required.
Front-Panel Key Access: ITRIG)
allows the user to enter the percent of the power desired when using the
o c c B W
occupied bandwidth measurement under the Power Menu softkey. When the
power measurements are first accessed the initial value for percent power is
99 percent. Once the value is changed, the new value will be saved through
an instrument preset or power-on. If the occupied bandwidth measurement
is active and the percent power is changed, another sweep is taken and
measured.
Front-Panel Key Access: (j-1
Key Descriptions 7-59