Extech Instruments MS6100 User Manual page 38

AC
Coupling DC
(menu HF Reject
page 2) LF Reject
Noise Reject
NOTE: Trigger coupling only affects the signal passed through the trigger system. It does not
affect the bandwidth or coupling of the signal displayed on the screen.
Video Trigger
Options Settings
Video (F1)
Source (F2)
Polarity (F3)
Standard (F4)
Sync (F5)
Note: With 'Normal Polarity', the trigger always occurs on negative-going sync pulses. If the
video signal contains positive-going sync pulses, use the Inverted Polarity option.
AC: Blocks DC components and attenuates signals below 10Hz.
DC: Passes all components of the signal to the trigger circuit.
HF Reject: Attenuates the high-frequency components above 80kHz.
LF Reject: Blocks DC components and attenuates the low-frequency
components below 8kHz. Rejects power-line hum.
Noise Reject: S
reduced to minimize false triggering on very noisy signals.
Comments
With Video highlighted, an NTSC, PAL or SECAM standard
None video signal will be triggered. The trigger coupling is preset
to AC.
CH1
Select the input source as the trigger signal.
CH2
Normal Normal: Triggers on the negative edge of the sync pulse.
Inverted Inverted: Triggers on the positive edge of the sync pulse.
NTSC
Pal/SECAM
All Lines
Line Number Choose a proper video sync. When selecting Line Number
Odd Field for the Sync option, use the User Select option to specify a
Even Field line number.
All Fields
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imilar to DC coupling, except the sensitivity is
38 MS6000-EU-EN-V1.3 7/12