Publication No. 980935 Rev. A
3152B User Manual
EADS North America Test and Services
Programming Reference 5-87
PSK:DATA <psk_data>
HS Syntax: 0891#<string>(?)
Description
Loads the data stream that will cause the 3152B to hop from phase to phase. Data format is a string of "0"
and "1" which define when the output generates the various phases. The size of the data word depends on
the PSK function.
Below you can see how a PSK data table is constructed. The PSK data table sample below shows a list of 10
shifts. The 3152B will step through this list, outputting either start or shifted phases, depending on the data
list: Zero will generate start phase and One will generate shifted phase. Note that the output waveform is
always sinewave and that the last cycle is always completed. The
Sample PSK Data Array
0 1 1 1 0 1 0 0 0 1
Parameters
Name
Type
Description
<psk_data>
ASCII
Block of ASCII data that contains information for the
generator when to step from one phase setting to
another.
PSK:MARKer <index>(?)
HS Syntax: 0090A<integer>(?)
Description
Programs where on the data stream the 3152B will generate a pulse, designated as PSK marker, or index
point. The marker pulse is generated at the SYNC output connector. Note that if you intend to program
marker position, you must do it before you load the PSK data list. The PSK:MARK command is common to all
PSK modulation functions.
Parameters
Name
Range
Type
Default
Description
<index>
1 to 4000 Numeric
(integer only)
1
Programs a marker pulse at an index bit position.
Response
The 3152B returns the current marker position.
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