Tektronix SPECMON3 Manual page 228

RF Measurements
Setting
Buttons
Expand
Reset Layout
Load
Save As
Done
Table columns
On
Start (Hz)
Stop (Hz)
Side
RBW (Hz)
n (RBWS)
Filter BW (n x RBW)
VBW (Hz)
VBW On
Mask
Abs Start (dBm)
Abs Stop (dBm)
Abs Same
Rel Start (dBm)
Rel Stop (dBm)
Rel Same
xxx
216
Description
Displays the Offsets & Limits Table in a new, resizeable window.
You can reorder columns in the Offsets & Limits Table by dragging the columns to a new
position. Clicking Reset Layout returns the column order to the factory default order.
Click to load a saved Offsets & Limits table from a file.
Click to save the current Offsets & Limits table to a file.
When the table is expanded, click Done when you have finished editing the table to save
your changes and close the expanded table display.
Specifies whether or not measurements are taken in the specified offset.
Start Frequency of the selected offset.
Stop Frequency of the selected offset.
Specifies whether the specified range appears on both side of the carrier frequency or
just one side (left or right).
Specifies the RBW for the selected range.
An integer value that specifies how many times to multiply the RBW to set the Filter
bandwidth.
Displays the Filter BW. Filter BW is the equivalent BW of each point in the offset. When
n > 1, an integration technique is used to achieve the Filter BW using narrower RBWs.
For most SEM measurements, this value is set to 1. The 3GPP standard suggests n
greater than 1.
Adjusts the VBW (Video Bandwidth) value. VBW Maximum: RBW current value; VBW
Minimum: 1/10,000 RBW setting.
Specifies whether the VBW filter is applied.
Select the type of limits used for Pass/Fail testing. Signal excursions that exceed the
mask settings are considered violations. The available choices are shown below.
Specifies the mask level at the inner edge of the selected offset.
Specifies the mask level at the outer edge of the selected offset.
Specifies whether the value for the inner and outer edges of the offset must be the same
value. When enabled, the Abs Stop cell is grayed-out and set to the value of the Abs
Start cell.
Specifies the mask level for the Relative mask at the inner edge of the selected offset.
Specifies the mask level for the Relative mask at the outer edge of the selected offset.
Specifies whether the inner and outer edges of the offset must be the same value.
When enabled, the Rel Stop cell is grayed-out and its value is set to the value of the
Rel Start cell.
Offsets & Limits Table Tab – SEM
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