13 Modulation Accuracy (Composite EVM) Measurement
Meas Setup
Error Messages. One of the following error messages is logged if the given parameter is invalid. If an
error is reported, the SCPI command is rejected and the instrument’s settings do not change.
(1) “Missing Parameter”
This error is reported if the number of parameters is less than 3.
For example,
:SENSe:RHO:SBOundary:LIST:BTS:INIT, 15000, 0
ß
3rd parameter is missing.
(2) “Illegal parameter value”
This error is reported if parameter type is invalid or if enum value is invalid.
For example,
:SENSe:RHO:SBOundary:LIST:BTS:INIT, 15000, ON, QPSK
ß
2nd parameter must be integer.
:SENSe:RHO:SBOundary:LIST:BTS:INIT 15001, 8, QPSK
ß
1st parameter value (Symbol Rate) is not
allowed.
Only the values given in the Range field are valid for the Symbol Rate. You may specify these in
numeric form, but they are interpreted as an enumeration and the error results if the value does not
translate to one in the list.
(3) “Data out of range”
This error is reported if parameter value is out of range.
For example,
:SENSe:RHO:SBOundary:LIST:BTS:INIT 15000, 256, QPSK
ß
2nd parameter is out of range.
(4) “Setting Conflict”
This error is reported if the given code channel overlaps another code channel in modulation
accuracy.
For example, if a user sends the following two commands, the second command causes the error
message because C7(0) overlaps C8(0).
:SENSe:RHO:SBOundary:LIST:BTS:INIT 15000, 0, QPSK
ß
OK
:SENSe:RHO:SBOundary:LIST:BTS:APPend 30000, 0, QPSK
ß
C7(0) overlaps C8(0)
State Saved
Saved in instrument state.
Range
symbol_rate = 7500 | 15000 | 30000 | 60000 | 120000 | 240000 | 480000 | 960000
0<= code_num <= 511 if symbol_rate = 7500
0<= code_num <= 255 if symbol_rate = 15000
0<= code_num <= 127 if symbol_rate = 30000
0<= code_num <= 63 if symbol_rate = 60000
0<= code_num <= 31 if symbol_rate = 120000
0<= code_num <= 15 if symbol_rate = 240000
0<= code_num <= 7 if symbol_rate = 480000
0<= code_num <= 3 if symbol_rate = 960000
QAM16 and QAM64 for the 3rd parameter available only for channels with a symbol rate of 240000.
For other channels, specify QPSK.
Initial S/W Revision
Prior to A.02.00
Modified at S/W Revision
A.03.00
2100
W-CDMA & HSPA Measurement Applications Reference
Summary of Contents for E6640A
Page 80: ...Table of Contents lxxx W CDMA HSPA Measurement Applications Reference ...
Page 188: ...3 Programming the Test Set Common Commands 188 W CDMA HSPA Measurement Applications Reference ...
Page 256: ...5 Mode Functions Mode Setup 256 W CDMA HSPA Measurement Applications Reference ...
Page 324: ...6 System Functions System 324 W CDMA HSPA Measurement Applications Reference ...
Page 369: ...8 Channel Power Measurement Auto Couple W CDMA HSPA Measurement Applications Reference 369 ...
Page 389: ...8 Channel Power Measurement Marker W CDMA HSPA Measurement Applications Reference 389 ...
Page 664: ...9 ACP Measurement Auto Couple 664 W CDMA HSPA Measurement Applications Reference ...
Page 669: ...9 ACP Measurement BW W CDMA HSPA Measurement Applications Reference 669 ...
Page 984: ...9 ACP Measurement View Display 984 W CDMA HSPA Measurement Applications Reference ...
Page 1001: ...10 Spectrum Emission Mask Measurement W CDMA HSPA Measurement Applications Reference 1001 ...
Page 1668: ...12 Code Domain Measurement Auto Couple 1668 W CDMA HSPA Measurement Applications Reference ...
Page 2354: ...14 QPSK EVM Measurement 2354 W CDMA HSPA Measurement Applications Reference ...
Page 2364: ...14 QPSK EVM Measurement Auto Couple 2364 W CDMA HSPA Measurement Applications Reference ...