
Troubleshooting
Optical Sampling Oscilloscope 91
Solving Common Problems
The update rate is very slow,
even in Freerun mode and with
16 k samples.
³ You are using a
USB 1.1 port.
³ Your computer is
slow .
³ You have several
other applications
running.
³ If you have a
USB 2.0 port on
your computer
connect the USB
cable to that port
and reinstall the
USB driver.
³ Install the
application on a
faster computer.
³ Close some
applications,
restart the
computer if
necessary.
The power level shown in the
application is much lower than
expected.
³ Signal
wavelength is
outside the
1525-1565 nm
span.
³
Dirty contacts.
³ Use the
1525-1565 nm
span.
³ Clean the
contacts.
Problem Cause Possible Solution
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