Stanford Research Systems DS360 Operating Manual And Programming Reference page 68

4-10 Remote Programming
OUTE (?) i
OUTM (?) i
TERM (?) i
RELA (?) i
STPE (?) i
FSTP (?) x
TTAA (?) x
DS360 Ultra Low Distortion Function Generator
The OUTE command disables the output for i=0 and enables the output for i=1.
The OUTE? query returns the current status of the output.
The OUTM command selects the output mode of the instrument. For i=0 the
output is unbalanced and for i=1 it is balanced. The OUTM? query returns the
current output mode.
The TERM command sets the output source impedence as indicated in the table
below. The TERM? query returns the current source impedance setting. An error
will be generated if the output impedance selected is not valid for the current
output mode.
i Source Impedance
50 Ω
0
150 Ω
1
600 Ω
2
3 Hi-Z
The RELA command sets (queries) the relative mode for the output amplitude.
For i=1, the relative mode is active, with the current amplitude setting as the
relative amplitude. New values are set using dB relative to this value. For i=0 (or
when setting a value in units other than dB) the relative mode is inactive. This
command has no effect when 2Tone is selected.
The STPE command enables (i=1) or disables (i=0) the usage of the frequency
step, which is set by the FSTP command. The STPE? query returns the current
step enable mode.
The FSTP command sets the frequency step to x Hertz. The FSTP? query returns
the current step frequency. The step is active only for the main frequency
(FREQ) and STPE (step enable) = 1. The value x may range between 10mHz and
200kHz.
When the frequency step is enabled, it becomes the knob increment value.
The TTAA command sets the Tone 1 amplitude to x. The value x must consist of
the numerical value and a units indicator. The units may be VP (V
DM (dBm) or DV (dBV). For example, the command TTAA1.0VP will set the
Tone 1 to 1.0Vpp. The maximum value for the sum of Tone 1 and Tone 2
amplitude, as well as the ratio of the two, is limited as described in chapter 3. If
the DS360 must modify the amplitude of either Tone 1 or 2, due to under or over
ranging, a message is sent on the front panel and bit 3 in the DDS register is set.
), VR (V )
pp RMS