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Real-Time I/Q Baseband Generator User’s and Programming Guide
Softkey Reference
ESG Family Signal Generators
F
Options UN8 and 202
• PN15 - A single frame is generated. The data fields are filled with
the leading bits of the PN15 sequence. A trigger causes the frame to
be transmitted. The data fields of this frame are then filled
sequentially with the next series of PN15 data bits. A trigger causes
the frame to be transmitted. This process continues, transmitting
the entire PN15 sequence frame by frame. The last bit of the PN15
sequence in a data field is immediately followed by the first bit of a
second PN15 sequence.
• User File - The user’s file should have the appropriate data to fill an
integer number of timeslots. If not, the remaining bits are truncated.
Depending on the size of the file, more than one frame can possibly
be generated.
• External Data - External data is clocked into the data fields of the
timeslot. A single frame is generated.
Combinations of these data patterns may cause some patterns to be
truncated. Refer to “
Digital Modulation Input/Output Relationships
on page 6-9 for the details of the data dependencies.
Selecting
Cont
with framed data causes the frames to be transmitted
continuously.
Default Value: Continuous
Softkey Location:
Mode
>
TDMA
>
desired format
>
Data Format Pattern
Framed
>
Frame Repeat Single Cont
Frame Trigger
This key appears in two places:
TDMA Menu
Pressing this softkey displays a menu of softkeys where you can trigger
a framed pattern. You can choose to trigger using the front panel
Trigger
key, an external trigger supplied to the PATTERN TRIG IN connector,
or by a *TRG command or GET (group execute trigger) signal sent over
GPIB. This softkey is inactive for unframed or continuously repeated
data. See: “
Default Value: Trigger Key
Softkey Location:
Mode
>
TDMA
>
desired format
>
Data Format Pattern Framed
>
Frame Repeat Single Cont
>
Frame Trigger
Summary of Contents for ESG series
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