Simrad TV80, Reference Manual

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Description
The
SR Receiver Filtering
dialog
box can be used to minimize the
interference from other acoustic
systems (sonars and echo sounders)
on your own and/or other vessels.
The filter also suppresses noise
from your propellers, and from
other similar noise sources. The
four filter settings are used to
control the "efficiency" of the filter.
To disable the filter, set it to
Off .
Details
Interference Filter
The
Interference Filter
will
remove noise and false echoes from other echo sounders and sonars in the vicinity of
your own vessel. This is a median filter.
When you operate in areas with substantial reverberation due to the bottom conditions,
or in shallow waters, you may experience “jumps” or spikes in the data received from
the sensors. Such errors can also be caused by other types of hydroacoustic equipment
operating on the TV80 frequency range. This filter has been implemented to remedy
for such interference problems as well.
The
Interference filter
offers four different settings. The default setting of the
Interference Filter
is Weak .
• In Off mode, the filter is disabled.
• In Weak mode, the data from the last three sensor transmissions are median filtered.
• In Medium mode, the data from the last five sensor transmissions are median
filtered.
• In Strong mode, the data from the last seven sensor transmissions are median
filtered.
Simrad TV80 Reference Manual