The first section in this depiction is the SI 455kHz sonar beam and you can see how its shape differs from the Quadrabeam 455kHz sonar beam in the previous post...
Rickie
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The first section in this depiction is the SI 455kHz sonar beam and you can see how its shape differs from the Quadrabeam 455kHz sonar beam in the previous post...
Rickie
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------------------------>> Pro Staff Sonar Advisor