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3-48
Real-Time I/Q Baseband Generator User’s and Programming Guide
Softkey Reference
ESG Family Signal Generators
C
Options UN8 and 202
In this example:
•
T1:
shows the value (hexadecimal 1FF) for the 9-bit tail field. You
can edit this value by pressing the
T1
softkey. However, if the guard
time symbols of the previous timeslot do not match the
T1
symbols of
the current timeslot, the burst shape may not be smooth (even if the
previous timeslot is turned off).
•
E:
shows the current data selection (PN9). Press the
E
softkey to
change the data selection. Other selections allowed include PN15,
fixed 4-bit patterns, fixed patterns of ones and zeroes, user files, or
external data.
•
TS:
shows the value (hexadecimal 3F3F9E49FFF3FF3F9E49
)
for the
78-bit training sequence. You can edit this value by pressing the
TS
softkey.
•
T2:
shows the value (hexadecimal 1FF) for the 9-bit tail field. You
can edit this value by pressing the
T2
softkey. However, if the guard
time and
T2
symbols of the current timeslot do not match, the burst
shape may not be smooth.
•
G:
shows the value (hexadecimal 7FFFFFF) for the guard time field.
Guard time appears in the visual representation of the timeslot as a
24.75-bit field. In the actual implementation, the guard time field in
timeslots 0 and 4 are 27 bits long and the remaining timeslots
contain 24-bit fields. You can edit the guard time value by pressing
the
G
softkey. However, If the guard time and
T2
symbols of the
current timeslot and the
T1
symbols of the next timeslot do not
match, the burst shape may not be smooth (even if the current
timeslot is turned off).
Softkey Location:
Mode
>
TDMA
>
EDGE (Rev 8.3.0 Release 1999)
>
Data Format Pattern Framed
>
Configure Timeslots
>
Configure Normal
Содержание ESG series
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