Publication No. 980935 Rev. A
3152B User Manual
EADS North America Test and Services
Programming Reference 5-83
Parameters
Name
Range
Type
Default
Description
<shift_freq>
10e-3 to
100e6
Numeric
100e3
Programs the shifted frequency value in units of Hz.
Response
The 3152B returns the current shifted frequency value. The returned value will be in scientific notation(for
example: 100mHz would be returned as 100e-3 – positive numbers are unsigned).
FSK:FREQuency:BAUD<baud>(?)
HS Syntax: 0080A<float>(?)
Description
This allows the user to select the FSK word rate. The word rate is the interval of which the bit streams in
the FSK data array are clocked causing the output frequency to hop from carrier to shifted frequency
values and vice-versa.
Parameters
Name
Range
Type
Default
Description
<baud>
1 to 10e6 Numeric
10e3
Programs the rate of which the frequency shifts from
carrier to shifted frequency in units of Hz.
Response
The 3152B returns the current baud value.
FSK:FREQuency:MARKer <index>(?)
HS Syntax: 0083A<integer>(?)
Description
Programs the location on the data stream that the 3152B will generate a marker pulse, designated as an FSK
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 FSK data list.
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.
FSK:DATA <fsk_data>
HS Syntax: 00811#<string>(?)
Description
Loads the data stream that will cause the 3152B to hop from carrier to shifted frequency and vice-versa. Data
format is a string of "0" and "1" which define when the output generates carrier frequency and when it shifts
frequency to the FSK value. "0" defines carrier frequency,"1" defines shifted frequency. Note that if you intend
to program marker position, you must do it before you load the FSK data list.
Below you can see how an FSK data table is constructed. The sample below shows a list of 10 shifts. The
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