4. Programming Interfaces
Giga-tronics 2400/2500 Microwave Synthesizer Series
126
Programming Manual, Part Number 34783, Rev A, July 2009
4.6.4 GT-12000 Native Commands: Frequency Modulation
Table 24 GT-12000 Native Commands: Frequency Modulation
Number
Command Name
Comments
Case #
Case Name
Comments
42
FD d HZ|KZ|KHZ|MZ|MHZ|GZ|GHZ
Sets the Frequency Modulation deviation to d.
43
FM n
Activates and selects the source of the Frequency
Modulation according to the following:
n = 0 Deactivate Frequency Modulation.
n = 1 Activate external FM.
n = 2 Activate internal FM and select sine wave.
n = 3 Activate internal FM and select square
wave.
n = 4 Activate internal FMand select triangle
wave.
n = 5 Activate internal FMand select positive
ramp.
n = 6 Activate internal FM and select negative
ramp.
n = 7 Activate internal FMand select zero
output.
44
FR d HZ|KZ|KHZ|MZ|MHZ|GZ|GHZ
Sets the FMinternal rate to d. (Requires Option 24)
45
FT n
Sets the mode of Frequency Modulation according
to:
n = 1 Narrow mode
n = 2 Wide mode
n = 3 Phase mode narrow
n = 4 Phase mode wide