$SourceFrequency

Format

$SourceFrequency
 freq    range    fσ    ft0                // all are floating points.

Source%freq, Source%range, Source%fac_sig, Source%fac_t0

 When the units digit of type in $SourceType is
 1: only freq works, which represents what the frequency is.
 2: range    fσ    ft0
 3: freq    range    fσ    ft0
 4: freq    ????

range means what the bandwidth you want to simulate.
f_σ means the edge of bandwidth is located at f_σth of Gaussian sigma (σ).
f_t0 means the source starts at f_t0 times σ.

Example

$SourceFrequency
 1e15    0.5e15    3    5

This means the center of frequency is 1e15 Hz, 1.5e15 and 0.5e15 are at 3σ of Gaussian distribution, and the source will starts when the time is over 5σ.

Related commands

$SourceType, $SourceAmp, $SourcePosition, $SourceFrequency