Trigger Baseline Guide - Wavetek 193 Instruction Manual

20 mhz sweep/modulation generator
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6-15
2.0
10K
Off
CaNT
FREQ/START FREQ
FREQ MULT
SYM
MODE
Settings
Controls
Continuous
Mode Problems:
Set the controls
as
shown; then take the waveform measurments.
Refer
to table 6-11.
Figure 6·18.
Trigger Baseline Waveforms
+1.0V
O.OV
___
-1.0V
013
EMITIER
+ 5.5 ± .55 Vdc
020 EMITIER
AND
021 EMITIER
__
-0.7V
__
-0.6V
r---_---
+1.7V
019
BASE
-1.5
±
.15 Vdc
017 EMITIER
U5 PIN 14
___
-1.BV
__
-O.BV
-1.BV
-O.BV
U5 PIN 12
(GATE ONLy)
U5 PIN 11
:'--:....,__,.
__
"" ......
-1.BV
__
-O.BV
...10 ns
U5 PIN 12
(TRIG ONLy)
-1V
-O.BV
+1V
JB
(TRIG IN)
TRIG IN
TRIG LEVEL
2.0
10K
Off
TRIG or GATE
(Depends on symp-
tom-GATE
pre-
ferred
Approximately
centered
±
1V 10kHz Square
wave
FREQ/START FREQ
FREQ MULT
SYM
MODE
Settings
Controls
6.4.11
Trigger Baseline Guide
Trigger or Gate Mode Problems:
Set the controls as
shown; then take the waveform measurements.
Refer
to figure 6-18.
-1.BV
Figure 6·17. Trigger Waveforms (Gate)
U4 PIN 2
- 1.B
Vdc
(Eel lOW)
U4 PIN 5
- 1.B
Vdc
(Eel lOW)
U4 PIN 14
- 0.7 Vdc
(Eel HIGH)
U4 PIN 11
_-_
-1.BV
-O.BV
U4 PIN
3
_ -1.BV
-
-O.BV
U4 PIN 7
___
-1.6V
___
-O.BV
-
-1.0V
U12 PIN 4
I
I
I Varies between - 0.5 and - 2.0
I as TRIG lEVEL is rotated.
I
I
U12 PIN 5
-1V
+1V
JB
(TRIG IN)

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