3-22
Real-Time I/Q Baseband Generator User’s and Programming Guide
Softkey Reference
ESG Family Signal Generators
B
Options UN8 and 202
B2
Press this softkey to make the hexadecimal 16-bit broadcast bits (B2)
the active function. The current value for broadcast bits is displayed in
the
B2
field near the bottom of the text area of the display.
Default Value: 0000
Softkey Location:
Mode
>
TDMA
>
TETRA
>
Data Format Pattern Framed
>
Configure Timeslots
>
Timeslot Type
>
Dn Normal Cont
>
Configure Dn Normal Cont
>
B2
Or:
Mode
>
TDMA
>
TETRA
>
Data Format Pattern Framed
>
Configure Timeslots
>
Timeslot Type
>
Dn Normal Disc
>
Configure Dn Normal Disc
>
B2
Base
Pressing this softkey selects Standard Base as the channel band for
NADC. Base contains channels 1 through 799 and 990 through 1023.
Softkey Location:
Mode
>
TDMA
>
NADC
>
Freq Channels
>
Channel Band
>
Base
BBG Data Clock Ext Int
Press this softkey to select the internal data clock for the baseband
generator or to select an externally-supplied data clock. A data clock or
symbol sync input must be supplied when external mode is selected.
For more information on input and output signals, refer to
Default Value: Int
Softkey Locations
Custom:
Mode
>
Custom
>
Configure Hardware
>
BBG Data Clock Ext Int
Other Formats:
Mode
>
TDMA
>
desired format
>
Configure Hardware
>
BBG Data Clock Ext Int
Begin Frame
Press this softkey to output a 1-bit pulse to the EVENT 1 rear panel
connector that is synchronized to the first bit of the first frame. If you
have entered a value for
Sync Out Offset
, the synchronizing pulse is
offset by the number of bits specified. The number of trigger pulses
generated depends on the framed data pattern selected:
• A PN9 or PN15 data pattern generates a single frame. The frame’s
data fields are filled sequentially with the PRBS data. The
synchronizing pulse occurs at the beginning of the frame each time it
is transmitted.
• Any combination of a PN9 data pattern and external data generates
511 frames. The synchronizing pulse occurs at the beginning of the
first of the 511 frames each time that frame is transmitted.
Summary of Contents for ESG series
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