Lowrance HOOK-4x - Sonar Options

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Sonar operation | HOOK X series
Sonar operation | HOOK X series
Ping speed
Controls the rate the transducer uses to send so-
nar waves into the water. Ping speed adjustments
can help reduce interference from other trans-
ducers. When using shing modes, ping speed
settings are optimized for the selected shing
conditions, so in most cases, adjustments are not
necessary.
Sonar options
Noise rejection
Uses advanced signal processing to monitor the
eects noise (boat pumps, water conditions,
engine ignition systems, etc.) has on your display,
and then lters out undesired signals.