RF Level SMIQ
1125.5555.03 E-82.48
OFFSET
Input value of the level offset of the RF output level compared to the input
value of the RF level indicated in the LEVEL header field. Input in dB (cf.
Section 2.5.1, Level Offset). The status line indicates LEV-OFFST.
IEC/IEEE-bus command SOUR:POW:OFFS 0
LIMIT
Input value of level limitation. This value indicates the upper limit of the level at
the RF output connector. If a level above this limit is attempted to be set, a
warning is displayed in the status line.
IEC/IEEE-bus command SOUR:POW:LIM 16 dBm
ATTENUATOR MODE
AUTO Normal operation. The attenuator switching mechanically switches
in steps of 5 dB, the switching points being fixed.
IEC/IEEE-bus command :OUTP:AMOD AUTO
FIXED Level settings are made in a range of somewhat over 20 dB
without switching the attenuator (see section 2.5.2, "Non-
interrupting Level Setting"). The range of variation is fixed
automatically upon selection of this operating mode. The range is
indicated in the ATTEN FIXED RANGE menu. With level settings
out of the indicated range, a warning is displayed.
IEC/IEEE-bus command :OUTP:AMOD FIX
ELECTRONIC
Level settings are made in a range of somewhat over 90 dB with-
out switching the attenuator (see section 2.5.2, "Non-interrupting
Level Setting"). The range of variation is fixed automatically upon
selection of this operating mode. The range is indicated in the
ATTEN FIXED RANGE menu. With level settings out of the
indicated range, a warning is displayed.
This function is only available if the IQMOD module of version
VAR 4 or higher is installed (indication in UTILITIES - DIAG -
CONFIG menu, IQMOD Var 4 required).
IEC/IEEE-bus command :OUTP:AMOD ELEC
ATTEN FIXED RANGE
Indication of the level range in which the level is set without interruption in the
"ATTENUATOR MODE FIXED" operating mode.
KNOB STEP USER
Input value of the step width for level variation using the rotary knob. The RF
level is varied in the step width entered if KNOB STEP is set to USER.
IEC/IEEE-bus command SOUR:POW:STEP 1
KNOB STEP
DECIMAL Variation step width according to the position of the digit cursor.
USER User Defined, variation step width as entered under KNOB STEP
USER.
POWER RESOLUTION
Selection of resolution of LEVEL display. For level range -99.9 dBm to +16
dBm the resolution for the level display can be set to 0.1 dB or 0.01 dB.
POWER-ON STATE
Selection of the state the RF output is to assume after power-on of the unit
RF OFF Output is switched off
PREVIOUS SETTING Same state as before switch-off
IEC/IEEE-bus command :OUTP:PON ON
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