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5.2 Adjusting the sensitivity level to match the received signal strength
The strength of the received signal and the sensitivity of the receiver are shown in the following
segments of the display:
1. Received signal strength meter
The strength of the received signal is represented
by this bargraph scale. These are relative values
which are based on the sensitivity level set in the
receiver.
The triangles (
are a visual marker for maximum values. They
move towards the right as long as the signal
strength increases and continue in this direction
until it either levels off or decreases. The
maximum marker remains in this position for 3
seconds and thus provides the user with a helpful
visual aid for determining the maximum signal
strength so far.
2. Sensitivity meter (gain level in percent)
The sensitivity setting of the receiver (which coincides with the total spectrum which the
receiver is capable of processing) is represented by this scale. The higher the level, the more
capable the receiver is of detecting weaker signals.
The numeric display above the bars shows the utilisation factor as a percent.
• Adjusting the sensitivity
Should the received signal strength bargraph provide virtually no indication, or the display is fully
utilised, either a manual or automatic adjustment of the sensitivity setting of the receiver should be
made.
•
To adjust the sensitivity level automatically, press button # 2 once. The sensitivity level of the
receiver will be adjusted automatically and the bargraph will fill approximately half of the scale.
•
To adjust the sensitivity level manually, press button # 2 twice in rapid succession. The screen
displays:
To decrease or increase the sensitivity of the receiver by one percent, press and release
button # 1 (to decrease) or button # 3 (to increase). This process can be accelerated by
holding down the respective button.
To exit the manual sensitivity level adjustment menu, press button # 2 twice in rapid
succession. By pressing button # 2 only once, the depth measurement process will begin.
R
ECEIVER
) above and below the scale
-
,
USE
ADJUSTING SENSITIVITY AND SETUP
R
1
2
17
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