Performance Verification
Check Random Noise,
Sample Acquisition Mode
This test check
s random noise. You do not need to connect any test equipment to
the oscilloscope for this test.
1. Disconnect ev
erything from the oscilloscope inputs.
2. Push the fron
t-panel Default Setup button.
3. Set Gating to Off as follows:
a. Push the front-panel Wave Inspector Measure button.
b. Push the bottom-bezel More buttontoselectGating.
c. Push the side-bezel Off (Full Record) button.
4. Select the RMS measurement as follows:
a. Push the b
ottom-bezel Add Measurement button.
b. Select the RMS measurement.
c. Push the side-bezel OK Add Measurement button.
5. Reset statistics as follows:
a. Push the bottom-bezel More button to select Statistics.
b. Push the side-bezel Reset Statistics button.
6. Read a
nd make a note of the RMS Mean value. This is the Sampled Mean
Value ( S M V ) .
7. Set t
he Acquisition mode to Average a s follows:
a. Push the front-panel Acquire button.
b. Push the bottom-bezel Mode button to display the Acquisition Mode
menu (if it is not already selected).
c. Push the s ide-bezel Average button.
d. Make sure that the number of averages is set to 16.
8. Reset statistics as follows:
a. Push the front-panel Wave Inspector Measure button.
b. Push the bottom-bezel More button to select Statistics (if it is not already
selected).
c. Push the side-bezel Reset Statistics button.
9. Read and make a note of the RMS Mean value. This i s the Averaged Mean
Value ( A M V ) .
10.
Calculate the RMS noise (RMS noise = SMV – AMV), and enter the
calculated RMS noise in the test record.
76 MDO4000 Series Specifications and Performance Verification
To Next Page
Loading...
Need help?
General
