Tektronix 47E5A

I
I
I
I
I
I
I
I
I
I
1-1 ... ___
8
DIVISIONS -----11-1
(360
0
)
Fig. 21 . Phase difference .
Using the formula :
MEASURE
TIME FROM
A TO B
HORIZONTAL
DIFFERENCE
465/DM-O-15
Phase
Difference
horizontal
difference
divisions
X sweep rate
(degrees/div)
Substituting the given values:
Phase Difference = 0.6 X 45° = 2YO .
HIGH RESOLUTION PHASE
DIFFERENCE MEASUREMENTS
Make more accurate phase measurements by in-
creasing the sweep rate (without changing the A VAR
TIME/DIV control) by using the X10 MAG mode . Delayed
sweep magnification may also be used (see Fig. 22) .
CHANNEL 2
'; - -l- --I--I---I- + -j --f--I-- f--
I HORIZONTAL I
r-- DIFFERENCE --J
MEASURE
TIME FROM
A TO B
465/DM - O·16
Fig. 22. High-resolution phase difference .
@ 475A/DM44 Operators
43