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VEE Measurement Program Operation
Measurement
NOTE
To set the erase type i.e. (DC+ / DC-/AC), click on [More Config.] to open the setup menu
and select the type in the [Erase Type] button.
3. Click on the [Measure] button to start measurement. When [Auto Scale] is pressed, the
4. Click the [Return] button to return to Measure menu.
Measurement
Display
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VBW
Start Freq.
Stop Freq.
Data Pattern
Track #
Meas. Type
graph scale will adjust itself automatically to its maximum and minimum values.
The upper left side of the menu shows the measured SNR in terms of dBm, the
measured 'Signal' in terms of volts and 'Noise' in terms of rms volts.
Specifies the video band width. Narrowing
VBW will reduce the noise variations. And
widening VBW results to a faster
measurement. If the system has E4402B 3GHz
spectrum analyzer or 4395A, this value is
clipped to a largest (and not greater than it)
value within the range from RBW/300 to
RBW and among 10, 30, 100, 1k, 3k, 10k,
30k, 100k, 300k, 1M and 3MHz. (IF the
system has the 4395A, the maximum value is
1MHz.) When only E5040A is installed in the
system, the VBW value is clipped to the value
of RBW.
Specifies the starting frequency of the
spectrum analyzer for spectrum measurement.
If the system has 4395A, the frequency range
is from 0Hz (min) to 500MHz (max). If the
system has E4402B 3GHz spectrum analyzer
with the E5040A, the frequency range is 0Hz
(min) to 3GHz (max).
Specifies the stopping frequency of the
spectrum analyzer for spectrum measurement.
If the system has 4395A, the frequency range
is from 0Hz (min) to 500MHz (max). If the
system has E4402B 3GHz spectrum analyzer
with the E5040A, the frequency range is 0Hz
(min) to 3GHz (max).
Specifies the data pattern to be written on the
test track. To set the data pattern, click on the
[Configuration] > [Setup] > [Pattern Config]
buttons to open the data pattern menu.
Specifies the track number to be tested.
Specifies the type of measurement sequence.
1)[Erase Write Meas.] means to erase, write
data then measure. 2)[Write Meas.] means to
write data, then measure. 3) [Meas.] means to
measure only.
Chapter 3
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