Technical data

46 Agilent N8201A Performance Downconverter Synthetic Instrument Module, 250 kHz to 26.5 GHz
2 Amplitude / Y Scale
Ref Level
Adjusts the absolute amplitude represented by the top graticule line on the display (the
reference level). Ref in the upper left corner of the display, indicates the current value. The
Amplitude, Y Axis Units setting determines the Reference Level units.
Key Path: AMPLITUDE / Y Scale
Dependencies/Couplings: If you reduce the Attenuation setting, the N8201A may have
to lower the Reference Level to maintain the proper level at the top of the screen. If you
then increase Attenuation, the Reference Level does not increase to its previous value.
When the input attenuator is auto-coupled, Attenuation (Auto), its setting may be affected
by changes in the reference level setting. See “Attenuation" on page 47.
Reference level is affected by: Attenuation, Preamp, Ext Amp Gain, Reference level offset,
Max Mixer Level and Y-Axis Units.
State Saved: Saved in Instrument State
Factory Preset: 0 dBm
Range: Determined by the settings of the input attenuator, reference level offset, external
amplitude gain, and whether the preamp (Option 1DS or 110) is on or off.
Remote Command:
:DISPlay:WINDow[1]:TRACe:Y:[SCALe]:RLEVel <ampl>
:DISPlay:WINDow[1]:TRACe:Y:[SCALe]:RLEVel?
Example:
DISP:WIND:TRAC:Y:RLEV 20 dbm
Sets the reference level to 20 dBm, which displays in the current Y-Axis Units. For example,
if the Y-Axis Units are dBμV, then 127 dBμV will be displayed.
Examples:
− 170 dBm to 30 dBm with zero reference level offset
− 180 dBm to 20 dBm with 10 dB ext amp gain
− 160 dBm to 40 dBm with 10 dB reference level offset
− 170 dBm to 0 dBm with preamp on (Option 1DS or 110)