Stanford Research Systems SR844 User Manual page 105

Display and Output
DDEF(?)ch{,q}
DRAT(?){i}
FPOP(?)ch{,i}
DOFF(?)
ch,q{,x}
AOFF ch,q
DEXP(?)
ch,q{,i}
Aux Input and Output
AUXI? i
AUXO(?)i{,x}
Setup
OUTX(?){i}
OVRM(?){i}
KCLK(?){i}
ALRM(?){i}
SSET i
RSET i
KNOB i
KEYP i
Auto Functions
AWRS
ACRS
AGAN
APHS
AOFF ch,q
Scan and Rel
SSTR(?){f}
SFIN(?){f}
SSTP(?){i}
SMOD(?){i}
RSTO i
RRDY? i
RCLR
RMOD(?){i}
4-15 Set (Query) the CH1 (ch=1) display to X (q=0), R[V] (1), R[dBm] (2),
Xn (3), AuxIn1 (4) or CH2 (ch=2) to Y (q=0),
Yn[dBm] (3), AuxIn2 (4).
Set (Query) the Ratio Mode to Off (0), ÷AuxIn1 (1), ÷AuxIn2 (2).
4-15
4-15 Set (Query) the CH1/CH2 analog output to Display (0) or X/Y (1).
4-15 Set (Query) the CH1/CH2 Offset for X, R[V], R[dBm] or Y to x % full
scale.
4-20 Auto Offset CH1/CH2 for X, R[V], R[dBm] or Y.
4-16 Set (Query) the Expand for X, R[V], R[dBm], Xn, Y,
×1 (i=0), ×10 (1), ×100 (2).
4-17 Query the value of Aux Input i (1 or 2).
4-17 Set (Query) the value of Aux Output i (1 or 2) to x Volts.
4-18 Set (Query) the Output Interface to RS-232 (0) or GPIB (1).
4-18 Set (Query) the GPIB Override Remote mode to Off (0) or On (1).
4-18 Set (Query) the Keyclick to Off (0) or On (1).
4-18 Set (Query) the Alarms to Off (0) or On (1).
4-18 Save current settings to Buffer i (1–9).
4-18 Recall settings from Buffer i (1–9).
4-18 Execute i knob adjustments.
4-18 Press key i.
4-20 Automatically set Wideband Reserve Mode.
4-20 Automatically set Close-In Reserve Mode
4-20 Perform AutoGain to set the Sensitivity.
4-20 Perform AutoPhase to get X=maximum positive and Y=0.
4-20 AutoOffset X, R[V], R[dBm] only.
4-21 Set (Query) the Scan Start Frequency to f Hz.
4-21 Set (Query) the Scan Stop Frequency to f Hz.
4-21 Set (Query) the Scan Number of Points to 2
4-21 Set (Query) the current Scan Point (1
4-21 Store XY (1), or R[dBm]
4-21 Query Rels Ready XY (1) or R[dBm]
4-21 Clear all stored Rel Values and Configurations.
4-21 Query Rel/Lock on (1) or off (0).
Index of Commands
≤ ≤
i
≤ ≤
N) or Off (0).
i
θ
(2) Rel Values.
θ
(2) returns 0 (no) or 1 (yes).
SR844 RF Lock-In Amplifier
4-3
θ ( )
, Yn[V] (2),
1
θ
, Yn [V] to
11.