4-28
Level Adjustments
Press the
LVL
soft key to edit the scale and reference level of the
Scan display. To adjust the Scale, use the
UP
and
DOWN
arrow keys
to select a scale that will provide the best viewing of the carrier
levels. To adjust the Ref Level, press the Ref Level soft key. Now
the Ref Level can be changed by using the
UP
and
DOWN
arrow
keys or by entering a numeric value followed by the
ENTER
key.
The reference level is at the top of the graph.
NOTE: The reference value is limited by unit and the scale setting.
Pressing the
Auto Scale
soft key will automatically set the reference
level for an optimum Scan display. The
FCN
+
Scale
key can also be
used to automatically set the reference level.
Frequency Adjustments
Press the
FRQ
soft key to edit frequency range parameters of the
Scan display. Use the
UP
and
DOWN
arrow keys or the numeric
entry keypad to set the start frequency. Press the
Stop
soft key to
adjust the stop frequency. The
Full Span
soft key can be used to set
the start and stop frequency to the full range of the unit.
Press the
TILT
soft key to turn tilt compensation on or off. Tilt
channels must be programmed in the Channel Plan Edit mode,
before this function can be implemented. The tilt is based on the
levels of the highest and lowest frequency channels configured for
tilt.
When turned on, the compensation value can be adjusted using the
UP
and
DOWN
arrow keys or by entering a numeric value followed
by the
ENTER
key. When tilt compensation is in effect, a "TILT
ON" indicator appears in the upper left portion of the scan screen.
Tilt Compensation
The tilt compensation feature allows the user to enter the cable loss
for a particular section of line and then using the scan display adjust
the gain of the amplifier to compensate for this loss.
Summary of Contents for 3SR
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