Triggers
R&S
®
RTO6
216User Manual 1801.6687.02 ─ 05
Most video signals have an output impedance of 75 Ω. The channel inputs of the
R&S R
T
O6 have an input impedance of 50 Ω or 1 MΩ. Make sure to provide the ade-
quate matching to ensure amplitude fidelity. A simple 75 Ω feed-through termination
combined with 1 MΩ oscilloscope inputs is suitable for most applications.
Once the trigger is set correctly, you can use cursor and automatic measurements to
perform amplitude and timing measurements.
Figure 6-1: Trigger on all lines of a PAL signal with positive signal polarity, trigger level = 300 mV
Standard
Selects the TV standard or "Custom" for user-defined signals.
HDTV standards are indicated by the number of active lines, the scanning system (p
for progressive scanning, i for interlaced scanning) and the frame rate. For interlaced
scanning, the field rate is used instead of the frame rate. 1080p/24sF is an HDTV stan-
dard using progressive segmented frame scanning.
"Custom" can be used for signals of other video systems, for example, medical dis-
plays, video monitors, and security cameras. T
o trigger on these signals, you have to
define the pulse type and length of the sync pulse, the scanning system and the line
period.
Remote command:
TRIGger<m>:
TV:STANdard on page 1413
Trigger types
To Next Page
Loading...
