Tektronix 7A16A Instruction Manual page 25

Cafibration-7Α16 Α
R
ISETIM E AND
B
ANDWIDTH
χ/11 .
C
heck Bandwi dth
10 . Check R ίsetίme α. Connect the Constant Am plitude Signal Generator to
the 7Α 16 Α INPUT thru α 50 Ω termination .
α .
I
ncrease the sweep spee d of the Time
B
ase unit to
approximately 2 ns (0 .02 μs an d Χ 10 Mag) .
b. Check-that the risetime of the leading e dge of the
p
ulse is within the specifications given in Table 5-3 .
ε . Disconnect all Test equipment.
TABLE 5-3
System
R
isetime and Bandw i d th
Mainframe
Ι
B
andwi dth
7900-Series
7700-Series
7500-Series
7400-Series
225 MHz
150 MHz
90 MHz
60 MHz
b.
Set the Constant Amplitude Signal Generator to the
reference freq uency of 3 MHz an d
a
djust the output
amplitude to obtain α 6
d
ivision
d
isp lay .
c. Change the frequency of the Constant Am plitu de
Signal Generator to the value given in Table 5-3.
R
isetime
d . Check-that the am plitu de of the
d
is play is 4.2 div or
1 .6 ns
greater.
2.4 ns
3 .9 ns
5.9
n
s
This completes the calibration for the 7Α 16 Α.