Tektronix T202 User Manual

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Signal Processing
Signal processing for the input channels and save
references can be performed in any combination
of addition, subtraction , multiplication, and divi-
sion. To maintain phase and time relationships
with multiple signals, ensure that the instrument is
in Chop mode and the sweep speed for both chan-
nels is identical. Ensure that the VOL TS/DIV set-
tings for the multiple signals are identical . For
save references signals read volts per division set-
tings in the "V" field of the save memory readout.
When dividing one channel by another , division by
zero Is invalid. Up to nine signal processing func-
tions can be defined . Only one signal processing
result can be displayed at a time . It is important
to give an arithmetic operation a label. so it can be
recalled for future references . This is done by en-
tering a numeric value from 1 to 9 after pressing
the! SIG PROC #! key in the arithmetic instruction .
For example : Entering a Numeric Entry 2 after
pressing the ! SIG PROC #! key will give the result
of the signal processing operation the label " 2" .
The[Jkey , !SHIFT! [8:Jkey , and!SHIFT! B
key may be used in place of the GJ key In the fol-
lowing arithmetic Instructions:
NOTE
After the ! ENTER I keystroke, the dis-
played commands are removed and re-
placed with a SP# followed by the as-
signed label number.
Signal Processing Between Two Input Channels
Press : ~ !SIG PROC #! [I] ~
GJ I CH 21 I ENTER I
Display: SP# 2 CH 1 + CH 2
4-14 -------------
Signal Processing Between Input Channel and
Saved Reference
Press:~ !SIG PROC #! [I] [Qu)
GJ I RECALL pos REFI rn I ENTER 1
Display: SP# 2 CH 1 + RCL REF 9
Signal Processing Between Any Two Saved Refer-
ences
Press:
!SHIFT!
I SIG PROC #!
I RECALL POS REF I
[]]
I RECALL POS REF I []] I ENTER I
m
GJ
DISPLAY: SP# 2 RCL REF 9 + RCL REF 8
Removing Signal Processing Functions
Before removing a Channel Arithmetic or a Save
Reference Arithmetic display, it may be necessary
to press the I CE I key a couple of times if the
previous instruction started
with a
I RECALL POS REF I keystroke.
Press: I SHIFT! I SIG PROC #! I SHIFT!
I ON/OFF!
Display: SP# ON/OFF
Recall Channel Arithmetic or Save Reference
Arithmetic
Press: ! RECALL POS REF I
I SIG PROC #! [II I ENTER I
Display: RCL REF SP# 2
- Operating Instructions -----
4-15

Tektronix T202 Specifications

General

Brand	Tektronix
Model	T202
Category	Test Equipment
Language	English