[R-390] PD-1 SSB reception, AM effects

[Jim Brannigan]

The CV-591 has a choice of Xtal or Var. OSC., hence the large "Bandspread"
knob. No notch filter or IF gain controls.  Otherwise the controls are
similar.
I have not seen a lot of SBA-1's around so your Signal Corps. model might be
an evaluation version.
Jim


> I was just looking at the CV-591 and it looks nothing like my
> Eldico SBA-1.  It's a little unclear what the controls are on the
> front panel of the CV-591, except for the obvious ones.  The SBA-1
> has a notch filter, a noise limiter, and an IF gain, in addition to
> the usual SSB, audio, and power controls. I am really curious what
> the military nomenclature might be for my unit it has Signal Corp stamps
on
> it so there must be one. The search continues.
>
>                        Ken