Specifications
1-6
TDS3000B Series Service Manual
Table 1- 1: Specifications (cont.)
Trigger
Any channel, NOISE REJ coupled 3.5 times the DC-coupled limits
Any channel, HF REJ coupled 1.5 times the DC-coupled limit
from DC to 30 kHz, attenuates
signals above 30 kHz
Any channel, LF REJ coupled 1.5 times the DC-coupled limits
for frequencies above 80 kHz,
attenuates signals below 80 kHz
Trigger level range Source Sensitivity
Any channel ±8 divisions from center of
screen, ±8 divisions from 0 V if LF
REJ trigger coupled
External trigger ±800 mV
External/10 trigger ±8V
Line Fixed at the midlevel of the AC
line
SET LEVEL TO 50%,
typical
Operates with input signals ≥45 Hz
Trigger level Source Sensitivity
accuracy, typical
Any channel ±0.2 divisions
External trigger ±20 mV
External/10 trigger ±200 mV
Line N/A
Trigger holdoff range 250.8 ns to 10 s
Video trigger Triggers on negative sync of NTSC, PAL, or SECAM signal
sensitivity, typical
Source Sensitivity
Any channel 0.6 to 2.5 divisions of video sync
tip
External trigger 150 mV to 625 mV of video sync
tip
External/10 trigger 1.5 V to 6.25 V of video sync tip
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