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Real-Time I/Q Baseband Generator User’s and Programming Guide
Softkey Reference
ESG Family Signal Generators
B
Options UN8 and 202
Beta
This softkey is activated automatically when the Kaiser windowing
function is selected. The default Beta factor provides a good
compromise for optimizing out of band performance (ACP) without
seriously compromising passband performance (EVM). Changing the
Beta factor adjusts the trade-off between ACP and EVM. Decreasing
the value improves EVM. Increasing the value improves ACP.
Range: 1.000 through 10.000
Default Value: 4.000
Softkey Location:
Mode
>
TDMA
>
desired format
>
Modify Standard
>
Filter
>
Define User I/Q
>
Load Default FIR
>
Root Nyquist
(or any other
filter) >
Window
>
Kaiser
>
Beta
Bit Clock
Use this softkey to select a bit clock signal for the output at the rear
panel DATA CLK OUT port. This clock rate is normally set to
812.5 kHz.
Softkey Location:
Mode
>
TDMA
>
EDGE (Rev 8.3.0Release 1999)
>
BNC MUX Settings
>
Data Clk Out
>
Bit Clock
Bluetooth
Press this softkey to set up a predefined Bluetooth digital modulation
format to modulate a continuous stream of the selected data pattern
with the default maximum deviation set to 157.5 kHz. Bluetooth uses
2-level FSK (frequency shift keying) modulation that transmits data at
the rate of 1 bit per symbol (1 Msps).
Softkey Location:
Mode
>
Custom
>
Predefined Mode
>
Bluetooth
BNC MUX Settings
This key accesses a menu of softkeys from which you can modify the
output of the rear panel BNC/SMB connectors.
Softkey Location:
Mode
>
TDMA
>
EDGE (Rev 8.3.0 Release 1999)
>
BNC MUX Settings
BPSK
This softkey appears in two different situations, enabling you to either
select a modulation, or load a default I/Q map into the I/Q table editor.
Selecting a BPSK Modulation
Press this softkey to select BPSK (binary phase shift keying)
modulation for modulating a continuous stream of the selected data
pattern. BPSK modulation transmits data at the rate of 1 bit per
symbol. The selected modulation appears in the
Mod Type
field in the
text area of the display, and under the
Select
and
PSK
softkeys in the
Modulation Type menus.
Summary of Contents for ESG series
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