Next: DECONVOLVE /KEEP
DSB2SSB\DECONVOLVE /GAIN [First_Guess]
When this option is present, the deconvolution will try to adjust the
sideband gains, fitting one constant value per sideband for every LO
--> make sure you have run the deconvolution without gain fitting first!
Here's a typical sequence of commands to turn on the gain fitting during
> deconvolve 1e-5 100 /keep
> deconvolve 1e-5 100 /gain
First_Guess can be set to 1 or 0.
By default, First_Guess = 1 (the initial guess for signal and image
sideband gains is that they are equal to 1 for every LO setting).
Should any information on the sideband ratio be available in the header
variable GAINI, the user can enforce this as initial guess for the gain
fitting by setting First_Guess = 0.