Giga-tronics 2400/2500 Microwave Synthesizer Series
4. Programming Interfaces
Programming Manual, Part Number 34783, Rev A, July 2009
115
Table 17 Source Subsystem – Modulation SCPI Commands
Command Syntax
Description
[SOURce]:PULM:EXTernal:POLarity
NORMal|INVerted
Determines the polarity of the signal at the PULSE
IN connector that produces an RF output during
pulse modulation. The choices are:
•
NORMal RF at the RF OUT connector will be on
when the signal at the PULSE IN connector is at
a TTL high.
•
INVerted RF at the RF OUT connector will be
on when the signal at the PULSE IN connector
is at a TTL low.
[SOURce]:PULM:EXTernal: POLarity?
Queries the pulse modulation polarity. Returns
either "NORMal" or "INVerted".
[SOURce]:PULM:INTernal:TRIGger:POLarity
RISing|FALLing
Sets the internal trigger polarity of PM
[SOURce]:PULM:INTernal:TRIGger:POLarity?
Queries the internal trigger polarity of PM
[SOURce]:PULM:SOURce EXTernal:INTernal
Set the pulse modulation source. The choices are:
•
INTernal Sets the internal PM generator as the
PM source.
•
EXTernal Selects external PM. The modulation
source in this case is the signal applied at the
rear-panel PULSE IN connector.
[SOURce]:PULM:SOURce?
Queries the source of pulse modulation. Returns
either "INTernal", or "EXTernal".
[SOURCe:]PULM:STATe ON|OFF|1|0
Sets the pulse modulation mode on or off. The
choices are:
•
1|ON Sets Pulse mode to on.
•
0|OFF Sets Pulse mode to off.
[SOURce]:PULM:STATe?
Queries the pulse modulation is on or off
[SOURce]:PULM:INTernal:BURSt:NUMberofpulse n
Sets the pulse count for the pulse modulation
internal burst
[SOURce]:PULM:INTernal:BURSt:NUMberofpulse?
Queries the pulse modulation internal burst pulse
count
[SOURce]:PULM:INTernal:BURSt:PERIod d
(Sec|MSec|USec|NSec)
Sets the period for the pulse modulation internal
burst
[SOURce]:PULM:INTernal:BURSt:PERIod?
Queries the pulse modulation internal burst period
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