Stanford Research Systems DS345, Manual

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Getting Started
1-3
6) Press [SHIFT][STOP F] then [1][MHz].
7) Press [SWEEP ON/OFF].
8) Press [SHIFT][MRK STOP] then [9][0][0][kHz].
9) Press [SHIFT][MRK START] then [2][0][0][kHz].
10) Press [SHIFT][SPAN=MRK].
Set the stop frequency to 1 MHz.
This starts the sweep. The MOD/SWP LED will
light, indicating that the DS345 is sweeping. The
scope should show the SWEEP output as a 0V to
10 V sawtooth wave. The sweep starts at 100kHz
when the sawtooth is at 0 V and moves to 1MHz
when the sawtooth is at 10 V. The FUNCTION
output is the swept sine wave. The markers are
not yet active.
Display the stop marker position and set the stop
marker to 900 kHz. The marker should now be
high from the start of the sweep to 900kHz (9V on
the sweep sawtooth), then the marker should go
low.
Set the start marker to 200 kHz. The marker is
now low from the beginning of the sweep until the
200 kHz start marker (2V on the sawtooth). The
marker stays high until the 900 kHz stop marker.
The markers allows designating any two frequen-
cies in the sweep.
This sets the sweep span to the marker positions.
The sweep now goes from 200 kHz to 900 kHz.
This function allows zooming in on any feature in
the sweep without entering the frequencies.
Tone Bursts
This example demonstrates the DS345's tone burst capability. The DS345
can produce a burst of 1 to 30,000 cycles of any of its output functions. The
bursts may be triggered by the internal rate generator, the line frequency, a
front panel button, or an external rising or falling edge. The TRIGGER output
goes high when the burst is triggered and low when the burst is over.
Connect the DS345's FUNCTION output to an oscilloscope, terminating the
output into 50 ohms. Set the sensitivity to 2V/div. Connect the rear-panel
TRIGGER output to the scope and set 2V/div. Trigger the scope on the rising
edge of the TRIGGER output. Set the scope timebase to 0.5ms/div.
1) Press [SHIFT][DEFAULTS].
2) Press [AMPL] then [5][Vpp].
3) Press [FREQ] then [1][0][kHz].
This recalls the DS345's default settings.
Set the amplitude to 5Vpp.
Set the output frequency to 10 kHz. This will be
the frequency of the tone.