Performance Check Procedure
c.
Superimpose CH 3 and CH 4 waveforms at the center graticule line.
d.
CHECK—that the leading edges of the two waveforms have less than
0.1 horizontal division separation at the center graticule line.
e.
Disconnect the test setup.
16. CH 1 and CH 2 Vertical Bandwidth
a.
Set:
X10 MAG
VERTICAL MODE
SEC/DIV
CH 1 VOLTS/DIV
CH 1 and CH 2 Input COUPLING
TRIGGER SOURCE
Horizontal POSITION
Off
CH 1 (CH 3 and CH 4 off)
0.1 ms
5 mV
DC
VERT
12 o’clock
b.
Connect leveled sine-wave generator (SG 503) output to the CH 1 in
put via a 50 f l precision BNC coaxial cable and a 50 f l BNC termina
tion.
c.
Set the leveled sine-wave Generator output for a six-division signal
amplitude at 50 kHz.
d.
Set the generator Frequency Range and Frequency Variable controls
for a 90 MHz output signal.
e.
CHECK—the displayed signal amplitude Is 4.2 divisions or more as the
frequency is Increased to 100 MHz.
f.
Repeat the frequency setup and CHECK procedure for VOLTS/DIV
settings of 50 mV through 0.5 V.
g.
Move the test signal to the CH 2 input.
h.
Set:
VERTICAL MODE
CH 2 (CH 1 off)
CH 2 VOLTS/DIV
5 mV
I.
Repeat the complete Bandwidth check procedure for Channel 2.
2245A Operators
7-21
