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Agilent X-Series Signal Generators SCPI Command Reference
Arb Commands
Dual ARB Subsystem–N5172B/82B ([:SOURce]:RADio:ARB)
GAUSsian
This choice selects a Gaussian filter which is adjusted using Bbt values.
RECTangle
This choice selects a one symbol wide rectangular filter.
IS95
This choice selects a filter that meets the criteria of the IS–95 standard.
IS95_EQ
This choice selects a filter which is a combination of the IS–95 filter (above) and
the equalizer filter described in the IS–95 standard. This filter is only used for
IS–95 baseband filtering.
IS95_MOD
This choice selects a filter that meets the criteria of the IS–95 error function (for
improved adjacent channel performance) with lower passband rejection than the
filter specified in the IS–95 standard.
IS95_MOD_EQ
This choice selects a filter which is a combination of the equalizer filter described
in the IS–95 standard and a filter that meets the criteria of the IS–95 error
function (for improved adjacent channel performance), with lower passband
rejection.
EDGE
This choice selects a linearized Gaussian filter as defined in GSM 05.04.
EWIDe
This choice selects an EDGE spectrally wide pulse shape filter as per 3GPP TS
45.004.
EDGE EHSR
This choice selects an EDGE high symbol rate spectrally narrow pulse shape filter
as per 3GPP TS 45.004.
WCDMa
This choice selects a W- CDMA filter which is the equivalent of a Root Nyquist
filter with an alpha of 0.22 optimized for ACP.
AC4Fm
This choice selects a predefined Association of Public Safety Communications
Officials (APCO) specified compatible 4–level frequency modulation (C4FM) filter.
"<user FIR>"
This variable is any FIR filter file that you have stored in memory. The variable
needs no directory path indicating the location of the file, such as
FIR:
or
/USER/FIR
. The command assumes the FIR directory. For more information on
file names, refer to
“File Name Variables” on page 13
.
*RST
Root Nyquist
:FILTer[:STATe]
Supported
N5172B/82B
[:SOURce]:RADio[1]:ARB:FILTer[:STATe]ON|OFF}|1|0
[:SOURce]:RADio[1]:ARB:FILTer[:STATe]?
This command enables or disables the
Real-Time Modulation Filter
. This filter is typically applied to an
Arb waveform containing just the I/Q symbol decision points. The filter then defines the transitions
between the symbol decision points. This means that the filter must have an oversample ratio of two
or more. When this feature is active, the Sample Clock Rate is actually the Symbol Rate.
Default
Off
Key Entry
Nyquist
IS–95
EDGE
Gaussian
IS–95 Mod
WCDMA
User FIR
IS–95 w/EQ
Rectangle
Root Nyquist
IS–95 Mod w/EQ
EDGE Wide
APCO 25 C4FM
EDGE EHSR
Содержание 72B
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