Tektronix 3000 Switch User Manual


 
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Section 2 — Control Panel Descriptions
TOP/GAIN is a two-purpose knob whose operation is dependent
on whether the BOX button or the MASK BUS or MASK STORE
button is pressed. If BOX is active, the TOP/GAIN knob controls the
top side of the box-style mask (see BOX button description). If
MASK BUS
or MASK STORE is active, the TOP/GAIN knob controls
the gain of the Mask bus clipper.
BOTTOM/CLIP is a two-purpose knob whose operation is
dependent on whether the BOX button or the MASK BUS or MASK
STORE
button is pressed, just as with the TOP/GAIN knob. If BOX
is active, the BOTTOM knob controls the bottom of the box-style
mask (see BOX button description). If MASK BUS or MASK STORE
is active, this knob controls the Mask bus clipper.
The LEFT and RIGHT knobs control the left and right sides of the
box-style mask. They are inactive if BOX is not selected.
The MASK INV button inverts the polarity of the signal used to
create the mask. A mask that normally allows a key inside of a box
will allow a key outside the box when MASK INV is on. Mask
Invert functions with all mask sources.
TOP/GAIN
BOTTOM/CLIP
LEFT
RIGHT
MASK
INV