Lowrance HOOK-4x Operators Manual EN - Page 19

Ping speed, Noise rejection

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Ping speed Controls the rate the transducer uses to send sonar waves into the water. Ping speed adjustments can help reduce interference from other transducers. When using fishing modes, ping speed settings are optimized for the selected fishing conditions, so in most cases, adjustments are not necessary. Sonar options Noise rejection Uses advanced signal processing to monitor the effects noise (boat pumps, water conditions, engine ignition systems, etc.) has on your display, and then filters out undesired signals. 19 Sonar operation | HOOK X series

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19
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 fishing modes, ping speed
settings are optimized for the selected fishing
conditions, so
in most cases, adjustments are not
necessary.
Sonar options
Noise rejection
Uses advanced signal processing to monitor the
effects noise (boat pumps, water conditions,
engine ignition systems, etc.) has on your display,
and then filters out undesired signals.