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Real-Time I/Q Baseband Generator User’s and Programming Guide
Softkey Reference
ESG Family Signal Generators
C
Options UN8 and 202
Custom
This softkey appears in two different situations, enabling you to either
create a custom digital modulation, or create a custom timeslot type.
Creating Custom Digital Modulation
Pressing this softkey displays a menu of softkeys where you can create
custom digital modulation. The custom modulation generator provides
generic symbol building, variable symbol rates, and variable filter
capabilities. You can define a modulation by selecting an existing
modulation type or creating a unique modulation. You can select from
several existing filters or create your own filter. You can also set the
symbol rate and define the burst shape.
Softkey Location:
Mode
>
Custom
Creating a Custom Timeslot Type
Press this softkey to select a custom timeslot type for the active
timeslot. A custom timeslot is configured using an internally-generated
data pattern, a downloaded sequence of bits stored in a user file, or by
supplying external data. The custom timeslot is provided for flexibility;
it is not a standard timeslot type.
When you select
Custom
for a timeslot, the visual representation of the
timeslot pattern on the display updates.
Softkey Location (DECT, EDGE, GSM, or PHS):
Mode
>
TDMA
>
desired format
>
Data Format Pattern Framed
>
Configure Timeslots
>
Timeslot Type
>
Custom
There are also custom timeslots for DECT portable part and PHS
uplink transmissions.
Custom Off On
Press this softkey to toggle the operating state of the Real Time I/Q
BaseBand Generator. Setting
Custom Off On
to
On
sets up the internal
hardware to enable you to customize data patterns. You can choose
from defined modulation types and filters, or create custom modulation
formats for transmitting a continuous stream of an unframed data
pattern.
Softkey Location:
Mode
>
Custom
>
Custom Off On
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