Tektronix TDS5000B Series Check Channel Isolation (Crosstalk)

Performance Tests
TDS5000B Series Specificationsand Performance Verification 2-37
g. Check against limits: CHECK that the cursor readoutis ≤100 ps.
h. Enter the time in the test record.
3. Disconnect the hookup:Disconnect the coupler or cables from the input
connectorsof the channels.
Equipment
required
Onel eveled sine-wave generator (Item 13)
One50 Ω, precision coaxial cable (It em 4)
Prerequisites ReadPrerequisites on page 2 --17and footnote warnings on page 2--19.
TDS5000BSeries oscilloscope
50Ωprecision coaxial cable
Output
Leveled
sinewave
generator
Figure2 -15: Initial test hookup
1. Install the test hookupand preset the instrument controls:
a. Hook up the test-signal source:Connect, through a 50 Ωprecision
coaxial cable, the output of the gen erator to CH 1. See Figure 2--15.
b. Initialize the oscilloscope:Press the DEFAULT SETUP button.
c. Modify the initialized controlsettings:
HTurn on all vertical channels (press the Vertical button of any off
channels: CH 1, CH 2, and,if equipped, CH 3, and CH 4).
HFrom the toolbar,click the Vert button. S et the termination of each
channel to 50 Ωby selecting each channel tab and clicking its
Termination50 Ωbutton.
HSettheVerticalSCALEofCH1,CH2,CH3,andCH4to100mV.
HSet the TriggerSOURC E to CH 1.
HSet the HorizontalS CALE to 20 ns (25 ns for TDS5054BE).
Check Channel Isolation
(Crosstalk)