Wavetek 39A Especificações Página 33

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User Manual 301/302
Controlling
Instrument
Functions
Using the APPLy
Command
The APPLy command provides a high level method of programming
the generator. Selection can be made for function, frequency,
amplitude, offset and other parameters, which are associated with the
applied function. For example, the following statement outputs a 2 Vp-
p square wave at 1 MHz with a 0 V offset and 10% duty cycle using
APPLy:
APPL:SQU 1E6, 2, 0, 10
It is not necessary to enter every parameter with the APPLy
command. If only the frequency and offset need to be changed, omit
the other parameters while keeping the commas. The other
parameters will be set to the power-up default values:
APPL:SQU 10E6,,1
Alternatively, if just the first parameters need to be changed, omit the
commas. The other parameters will be set to the power-up default
values:
APPL:SQU 4e6,2
Queries can also be made on all parameters associated with a
standard function using the APPL: <function_shape>? query. For
example, if the generator was programmed using the above
APPLy:SQU command, query the square wave parameters using the
following query:
APPL:SQU?
The generator returns a string that contains all the parameters
associated with the square function similar to the following string:
"1.000000e+6,2.000,0.000,50"
The command:
APPLy:SINusoid
{<frequency>,<amplitude>,<offset>,<phase>}
programs the generator to output a sine waveform with frequency,
amplitude, offset, start phase and power parameters. Parameters are
not optional if the above APPLy command is used. Include all other
parameters in the command. The default settings for these
parameters are: 1 MHz, 2 Vp-p, 0 V, 0 and 1.
Configuring The Instrument
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