Tabor Electronics 5064, Руководство пользователя

Страница: 269 / 369

5-48
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>(?)
Description
Programs where on the data stream the 2074 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 2074 will return the present marker position.
PSK:BAUD<baud>(?)
Description
This allows the user to select (n)PSK baud. The baud is the interval of which the symbols stream in the
(n)PSK data array as they are clocked with the baud generator. Note that this command is dedicated for
programming the (n)PSK modulation function only and will have no effect on the PSK function.
Parameters
Name Range Type Default Description
<baud> 1 to
10e6 Numeric 10e3 Programs the baud of which the symbols stream in
the (n)PSK data table. Baud is programmed in units
of Hz.
Response
The 2074 will return the present baud value. The returned value will be in standard scientific format (for
example: 100mHz would be returned as 100e-3
– positive numbers are unsigned).
PSK:CARRier:STATe{OFF|ON|0|1}(?)
Description
This command will toggle the carrier waveform (CW) on and off. This command affects all (n)PSK function
and has no effect on the PSK function. The carrier off function is especially useful as direct input for I & Q
vector generators that need the digital information only and supply the carrier information separately.