5.5.8 The Model 395 as a Noise Generator
Example 12 Setting Up the Signal To Noise Waveform
Example 12 creates a 100 kHz sine waveform. with 50% peak to
peak
noise (figure 5-
19). This example
is
the SCPI equivalent
of
example 12
in
paragraph 3.13.
Note
For
clarity the following commands are shown
on
separate lines.
But when sending actual command strings, you can send the
commands as one continuous string with the program message
terminator
<pmt>
at
the end.
Connect
the
Model
395, the scope,
and
"controller" as described
in
paragraph 5.5,
"Initial Setup." Then,
set
up the signal plus noise waveform by sending the following
commands:
*RST;
[:SOURce]
:FONCtion:NOISe:SHAPe
SPANoise;
FUNCtion:NOISe:SLENgth
4095;
FUNCtion:NOISe:FREQuence:START
leS;
FUNCtion:NOISe:FREQuence:STOP
2e6;
FUNCtion:NOISe:SIGNal:NAME
SINusoid;
FUNCtion:NOISe:SIGNal:FREQuency
leS;
FUNCtion:NOISe:SIGNal:RATio
50;
<pmt>
Output the signal plus noise waveform. by sending these commands:
[:SOURce]
:FUNCtion[:SHAPe]
SPANoise;
:INITiate:CONTinuous;
:
OUTPut
[:STATe]
li
:OUTPut:SYNC[:STATe]
1;
<pmt>
Figure 5-19. Signal Plus Noise Example
5.5.9
"rhe
Model 395 as an Amplitude Modulation Signal Source
Example 13 Setting
Up
Amplitude Modulation
Example
13
produces a 600kHz 50% Amplitude Modulated Sine wave using an external
modulating source. See figure 5-20. This example is
the
SCPI
equivalent
of
example
13
in
paragraph 3.14.
Note
For clarity the following commands are shown
on
separate lines.
But
when sending actual
command
strings, you
can
send
the
comrnands
as onecontinuous string with the program message terminator
<pmt>
atthe
end.
5-24 Remote Operation
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