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RIGOL
© 2007 RIGOL Technologies, Inc.
User‟s Guide for DM3000 Series
2-12
Math Functions
Press key, the display shows:
Figure 2- 11
The DM3000 provides five math functions: Null, statistic, dB, dBm and Limit testing.
Only one of these math functions can be enabled at a time, and remains in effect
until change.
In Math function interface, choose the required math function. Press On to start the
Math function.
Math functions are the combination of mathematical and the basic measurement
operation. However, not all combinations are supported. In such case the math
function will automatically turn off.
Table 2- 8 Math Function Menu Description
Function
Menu
Settings
Description
Statistic
Reading statistic functions, including: Max, Min,
Average, and number of measurement.
dB
The dB measurement is the difference between
the input signal and a stored relative value.
dBm
The dBm function is logarithmic, and is based on
a calculation of power delivered to reference
impedance.
Limit
The limit test function performs pass/fail testing
with upper and lower limits that you specify.
ON/OFF
ON
OFF
Turn on Math function.
Turn off Math function.
Save all changes, back to a higher level menu.
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