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Real-Time I/Q Baseband Generator User’s and Programming Guide
Using Functions
HP ESG Family Signal Generators
Mapping Symbol Positions with the I/Q Table Editor
Options UN8 and 202
Creating a Symbol Map
Use the following procedure to create and store a 4-symbol unbalanced QPSK.
Accessing the I/Q Table Editor
1. Preset the signal generator.
2. Press the front panel
Mode
key.
3. In the softkey menu, press
Real Time I/Q BaseBand
(if this softkey does not appear, go to
step 4).
4. Display the I/Q table editor by pressing:
Custom
>
Modulation Type
>
Define User I/Q
Other Formats:
TDMA
>
desired format
>
More (1 of 2)
>
Modify Standard
>
Modulation Type
>
Define User I/Q
The following illustration shows the I/Q table editor with data for a 4QAM I/Q map.
Clearing Data
When you create a new I/Q map (rather than editing existing data), it is often easier to
start with an empty table. Use the following steps to clear existing data from the table
editor.
1. Press
More (1 of 2)
to view the second page of softkeys.
2. Press
Delete All Rows
>
Confirm Delete of All Rows
. All data is removed from the table.
3. Press
More (2 of 2)
to return to the first page of softkeys.
4. Press
Display I/Q Map
. The data list is replaced by a blank I/Q state map.
5. To redisplay the list, press
Return
. As you enter data, you can toggle between the list
and the map to visually check the entries.
Содержание ESG series
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