Anritsu RA77OUA - Advanced Operational Features

Range (NM)
12,24,36 0.8 / 600
0.125
to 0.75 0.08 / 1800
Pulse Width (ps) /Repetition (Hz)
0.25 / 1200 *(ST ON: 0.8 / 600)
0.08 / 1800 *(ST ON: 0.25 / 1200).
*ST : Stretch Function
< Gain Adjustment > Press the GAIN key to set the
gain
adjustment mode. The underline
shown below
will be displayed on the
screen.
S 0 F 0SJ-L
< Picture Brilliance
Adjustnent >
Indicates that the gain
adjustment mode
is selected.
Turn the control knob to adjust the
gain. The gain adjustable range
is
from 0 to 50.
Turning the control knob clockwise
elevates the level, enhances
reception sensitivity and makes
targets visible. Turning the
control further clockwise changes
the brightness level of echo
signals reflected from targets with
high reflection coefficients.
For
long - range observations, increase
the gain by turning the control knob
clockwise
so that slight receiver
noise can be observed. (Receiver
noise usually appears on the entire
surface of the display as speckled
noise.
)
Conversely, excessive gain at short
range
will obscure the picture with
noise and unwanted echoes. Small
targets
will be concealed in the
obscure
areas.
In such a case, turn the control
knob counterclockwise to the
appropriate point. The
intensities
of signals reflected from targets
are expressed as changes of
brightness.
Press the key to change the CRT
brightness and the panel
illamination. One press varies the
brilliance by one level.