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Remote Programming and Examples
W-CDMA Subsystem SCPI Command Reference
ESG Family Signal Generators
Option 200
Filter Setup
Filter
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:DLINk:FILTer RNYQuist|NYQuist|GAUSsian|
RECTangle|IS95|IS95_EQ|IS95_MOD|IS95_MOD_EQ|AC4Fm|UGGaussian|"<User FIR>"
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:DLINk:FILTer?
This command selects one of the following filter types:
RNYQuist
Root Nyquist
NYQuist
Nyquist
GAUSsian
Gaussian
RECTangle
Rectangle
IS95
IS-95
IS95_EQ
IS-95 with equalizer
IS95_MOD
IS-95 modified
IS95_MOD_EQ
IS-95 modified with equalizer
AC4Fm
APCO 25 C4FM
UGGaussian
UN3/4 delay compatible, 0.300 fixed BbT, GSM Gaussian
"<User FIR>"
User defined FIR
Filter Alpha (for Nyquist or Root Nyquist)
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:DLINk:FILTer:ALPHa <0.000 to 1.000>
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:DLINk:FILTer:ALPHa?
Execute this command to change the alpha value for a Nyquist or root Nyquist filter. The
pre-defined alpha value is 0.220. This command is effective only after selection of a root
Nyquist or Nyquist filter; it does not affect other types of filters.
Range: 0.000 to 1.000
Once set, this value is not affected by an instrument preset or by a power cycle.
Filter BbT (for Gaussian)
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:DLINk:FILTer:BBT <0.000 to 1.000>
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:DLINk:FILTer:BBT?
Execute this command to change the bandwidth-multiplied-by-bit-time filter parameter
value. The pre-defined BbT value is 0.500, This command is effective only after selection of
a Gaussian filter; it does not affect other types of filters.
Range: 0.000 to 1.000
Once set, this value is not affected by an instrument preset or by a power cycle.
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Fully Coded 3GPP W-CDMA Personality User’s and Programming Guide