[PSUBS-MAILIST] Blue Robotics Sonar

[Jon Wallace via Personal_Submersibles]

Pretty sure the beam reflects off the water surface.

      From: hank pronk via Personal_Submersibles <personal_submersibles at psubs.org>
 To: Brian Hughes via Personal_Submersibles <personal_submersibles at psubs.org> 
 Sent: Friday, February 1, 2019 10:54 AM
 Subject: Re: [PSUBS-MAILIST] Blue Robotics Sonar
   
 Brian, Have you tested the Hummingbird pointing strait up?  I didn't think that would work because there is nothing for it to bounce back against.Hank
    On Friday, February 1, 2019, 7:44:42 AM MST, Brian Hughes via Personal_Submersibles <personal_submersibles at psubs.org> wrote:  
 
  In the original configuration of Harold, Maynard attached a transducer to the front of the starboard side thruster. I assume he did so as a way to easily shift direction, up to get depth bouncing off surface, spin the thruster down for depth, forward for collision avoidance.

Here's the upgrade:

1) transducer always pointed up for a Humminbird HDR 650. Basically a digital depth gauge. Small and accurate. Works well.

2) Raymarine Dragonfly 4 Pro aimed down to give depth below and detailed image of what's under me. Amazing little CHIRP sounder.

3) still debating on what to aim forward. Currently have an Interphase forward scanning sonar, but not real impressed with it. Older technology that works. Sort of.

Brian


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