508
Spectrum Emission Mask Measurement
Meas Setup
Res BWSets the resolution bandwidth used to calculate the power in the reference channel. The Channel Resolution BW can be set manually or put in to auto mode.
Radio Format RBW
(kHz)
LTE 1.4 MHz 13
3 MHz 27
5 MHz 47
10 MHz 91
15 MHz 150
20 MHz 180
W-CDMA 7 5
GSM 30
Key Path: Meas Setup, Ref Channel
Mode: WCDMA, C2K, WIMAX OFDMA, TD-SCDMA, 1xEVDO, LTE, LTETDD,
WLAN
Remote Command: [:SENSe]:SEMask:BANDwidth[1]|2[:RESolution] <bandwidth>
[:SENSe]:SEMask:BANDwidth[1]|2[:RESolution]?
[:SENSe]:SEMask:BANDwidth[1]|2[:RESolution]:AUTO
OFF|ON|1|0
[:SENSe]:SEMask:BANDwidth[1]|2[:RESolution]:AUTO?
Example: SEM:BAND 100 kHz
SEM:BAND?
SEM:BAND:AUTO ON
SEM:BAND:AUTO?
Notes: Bandwidth sub op code, 1 is for BTS, 2 for MS. Default is BTS.
You must be in the mode that includes SEM measurement to use this
command. Use :INSTrument:SELect to set the mode.
Couplings: When Res BW is set manually, Channel Resolution BW Mode is set to
MANual.
Value is coupled with Channel Detector selection, Channel Sweep Time,
Channel Video BW.
When set to Auto, the resolution bandwidth is automatically calculated.