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Occupied Bandwidth Measurement
AMPTD Y Scale (Amplitude/Y Scale)
AMPTD Y Scale (Amplitude/Y Scale)
Activates the Reference Value function and displays the Amplitude menu keys. These functions control
how data on the vertical (Y) axis is displayed and control instrument settings that affect the vertical axis
See “AMPTD Y Scale” on page 849 for more information.
Ref Value
Sets the absolute power reference value. However, since the Auto Scaling is defaulted to On, this value is
automatically determined by the measurement result. When you set a value manually, Auto Scaling
automatically changes to Off.
Key Path: Front-panel key
Initial S/W Revision: Prior to A.02.00
Key Path:
AMPTD Y Scale
Mode: WCDMA, C2K, WIMAX OFDMA, TD-SCDMA, 1xEVDO, LTE, LTETDD,
BLUETOOTH, WLAN
Remote Command: :DISPlay:OBWidth:VIEW[1]:WINDow[1]:TRACe:Y[:SCALe]:RLEV
el <real>
:DISPlay:OBWidth:VIEW[1]:WINDow[1]:TRACe:Y[:SCALe]:RLEV
el?
Example: DISP:OBW:VIEW:WIND:TRAC:Y:RLEV 125
DISP:OBW:VIEW:WIND:TRAC:Y:RLEV?
Notes: You must be in the W-CDMA mode, cdma2000 mode, TD-SCDMA mode,
BLUETOOTH mode, LTE mode, LTE TDD mode, WLAN mode, 1xEVDO
mode, or WIMAX OFDMA mode to use this command.
Use:INSTrument:SELect to set the mode.
Couplings: When the Auto Scaling is On, this value is automatically determined by the
measurement result.
When you set a value manually, Auto Scaling automatically changes to Off.
Preset: 10.00 dBm
State Saved: Saved in instrument state.
Min: –250.00 dBm
Max: 250.00 dBm
Initial S/W Revision: Prior to A.02.00
Modified at S/W Revision: A.03.00