Tektronix TDS 820, Manual

Page: 59 / 94

Performance Tests
TDS 820 Performance Verification
1Ć45
Sensitivity, Trigger, External, CH 1, and CH 2
Equipment Required: One high-frequency leveled sine-wave generator
(Item 15), one N to BNC adapter (Item 11), one precision coaxial cable
(Item 2), two 50
W
SMA cables (Item 3), one BNC to SMA adapter (Item 8),
and one 50
W
power divider (Item 12).
Prerequisites: See page 1-11.
Procedure:
High
Frequency
Sine Wave
Generator
Output
SMA Power Divider
BNC to SMA Adapter
Coaxial Cable
Figure 1-21: Initial Test Hookup
1. Install the test hookup and preset the instrument controls:
a.
Initialize the oscilloscope:
H
Press save/recall SETUP.
H
Press the main-menu button Recall Factory Setup.
H
Press the side-menu button OK Confirm Factory Init.
b. Hook up the test-signal source:
H
Connect the signal output of a high-frequency sine wave genera-
tor to an N to BNC adapter and a BNC to SMA adapter through a
precision coaxial cable; then connect the adapter to a power
divider.
H
Connect one output of the power divider to CH 1 through an SMA
cable.
H
Connect the other output of the power divider through a second
SMA cable to the EXT TRIGGER INPUT. See Figure 1-21.
c. Modify the initialized front-panel control settings:
H
Set the horizontal SCALE for the M (main) time base to 200 ns.