3152B User Manual
Publication No. 980935 Rev. A
5-84 Programming Reference
EADS North America Test and Services
3152B will step through this list, outputting either carrier or shifted frequencies, depending on the data list: A
Zero will generate the carrier frequency and a One will generate shifted frequency. Note that the waveform is
always a sine wave and that the last cycle is always completed.
Sample FSK Data Array
0 1 1 1 0 1 0 0 0 1
Parameters
Name
Type
Description
<fsk_data>
ASCII
Block of ASCII data that contains information for the
generator about when to shift from carrier to shifted
frequency and vice-versa.
ASK Modulation
Programming
Use the following commands for programming the ASK parameters.
ASK control is internal. The amplitude will toggle between two
amplitude settings at a rate determined by the baud value and
controlled by a sequence of bits in the ASK data table. The
commands for programming the amplitude shift keying function are
described below. Note that the carrier waveform frequency (CW)
setting is common to all modulation schemes.
ASK <amplitude>(?)
HS Syntax: 0064A<float>(?)
Description
This programs the normal amplitude setting. The amplitude shifts when the pointer in the data array points to
a “1”.
Parameters
Name
Range
Type
Default
Description
<amplitude> 0 to 16
Numeric
5
Programs the amplitude setting in units of Volts.
Response
The 3152B returns the current amplitude value.
ASK:SHIFted <shift_ampl>(?)
HS Syntax: 0065A<float>(?)
Description
This programs the shifted amplitude. The amplitude shifts when the pointer in the data array points to a “1”.
Parameters
Name
Range
Type
Default
Description
<shift_ampl>
0 to 16
Numeric
1
Programs the shifted amplitude setting in units of Volts.
Response
The 3152B returns the current shifted amplitude value.
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