User`s guide

accesses softkeys that let you select the sweep mode and trigger mode. (Also
see “Screen Annotation” in Chapter 1.)
Note
With some delayed trigger functions (for example, external or TV triggering),
the softkey menu is not updated until after the trigger has occurred.
TRIG MKR
ON OFF
TV
LINE #
TV
Standard
TV SYNC
NEG POS
TV TRIG
EVEN FLD
TV TRIG
ODD FLD
TV TRIG
VERT INT
UPDATE
TIMEFREQ
Option 105 only. Option 101 is recommended.
activates a marker which indicates the time from the gate trigger to the
current marker position. The trigger marker is in the time domain window of
the gate utility. It is turned off when the menu is exited or if another active
function is activated.
Front-Panel Key Access: [SWEEP]
Options 101 and 102, or Option 301 only.
selects the line number of the video picture field. The values allowed are 1 to
1012. (-1 sets the TV line number to 17.
Front-Panel Key Access: m
O-ptions 101 and 102, or Option 301 only.
allows the spectrum analyzer to trigger on the standard video formats; NTSC,
PAL, PAL-M, or SECAM-L.
Front-Panel Key Access: m
Options 101 and 102, or Option 301 only.
selects the polarity of the modulation of the video format. NTSC uses the
negative or positive modulation video format. NTSC, PAL, and PAL-M use
negative modulation. SECAM-L uses positive modulation.
Front-Panel Key Access: (TRIG)
Options 101 and 102, or Option 301 only.
selects an even video field of an interlaced video format to trigger on.
Front-Panel Key Access: (TRIG)
Options 101 and 102, or @ion 301 only.
selects an odd video field of an interlaced video format to trigger on.
Front-Panel Key Access: (TRIG)
Options 101 and 102, or Option 301 only,
selects a vertical interval to trigger on. Triggering occurs on the next pulse
edge. If it triggers on an even field, triggering will not alternate between odd
and even fields. If it triggers on an odd field, triggering will alternate between
odd and even fields. The vertical interval is used for non-interlaced video
formats.
Front-Panel Key Access: m
Option 105 only. 0ption 101 is recommended.
switches between the time domain and frequency domain windows in the gate
utility. The window is updated to reflect the current state when it is activated.
The WINDOWS INEXT) key will also switch between the windows.
Front-Panel Key Access: [SWEEP]
Key Descriptions 7-89