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Channel Power Measurement
BW
BW
Accesses a menu of functions that enable you to specify and control the video and resolution
bandwidths. You can also select the type of filter for the measurement and set the filter bandwidth.
Res BW
Sets the value of the resolution bandwidth (RBW). If an unavailable bandwidth is entered with the
numeric keypad, the closest available bandwidth is selected.
Key Path: Front-panel key
Initial S/W Revision: Prior to A.02.00
Key Path:
BW
Mode: WCDMA, C2K, WIMAX OFDMA, 1xEVDO, LTE, LTETDD, WLAN
Remote Command: [:SENSe]:CHPower:BANDwidth[:RESolution] <bandwidth>
[:SENSe]:CHPower:BANDwidth[:RESolution]?
[:SENSe]:CHPower:BANDwidth[:RESolution]:AUTO ON|OFF|1|0
[:SENSe]:CHPower:BANDwidth[:RESolution]:AUTO?
Example: CHP:BAND 5 MHz
CHP:BAND?
CHP:BAND:AUTO ON
CHP:BAND:AUTO?
Notes: You must be in the W-CDMA mode, cdma2000 mode, LTD mode, LTE TDD
mode, WLAN mode, 1xEVDO mode, or WIMAX OFDMA mode to use this
command. Use :INSTrument:SELect to set the mode.
Couplings: Sweep time is coupled to the RBW. As the RBW changes, the sweep time (if
set to Auto) is changed to maintain amplitude calibration.
Video bandwidth (VBW) is coupled to the RBW. As the resolution bandwidth
changes, the video bandwidth (if set to Auto) changes to maintain the ratio of
VBW/RBW (10:1).
When the Res BW is set to Auto, the resolution bandwidth is auto-coupled to
the span. The ratio of Span/RBW is approximately 106:1 when auto coupled.
When Res BW is set to Man, and the bandwidths are entered manually, these
bandwidths are used regardless of other analyzer settings.