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  HUMMINBIRD Side Imaging Installations and Transducers

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Author Topic:   HUMMINBIRD Side Imaging Installations and Transducers
Lil Whaler Lover posted 08-09-2009 10:50 PM ET (US)   Profile for Lil Whaler Lover   Send Email to Lil Whaler Lover  
I have sold six Humminbird SONAR units with side imaging. We have installed each one and have only used the transducer that came in the box with the unit. Each unit operates very well with only the single transducer.

When we were installing the most recently sold unit, the question of adding a second transducer for high speed operation came up for the first time. I talked with my Humminbird rep about this new question. He said that some installations now are getting a second transducer for high speed operation. The thought behind the second transducer is that the side imaging transducer is rather large and on some boats throws a large amount of spray, usually all over the engine. When this occurs, the side imaging transducer can be mounted above the bottom of the boat as it only needs to contact the water at speeds below 6 miles per hour, and a high speed transducer can then be mounted in a standard fashion. This change also requires a splitter and a switch for the user to manually control which transducer is connected to the head.

I guess we have been lucky and had no complaints about spray.

I have two customers waiting for the Lowrance Structure Scan LSS-1 units to arrive. I believe that both will be getting the Lowrance units by next spring.

jimh posted 08-10-2009 08:43 AM ET (US)     Profile for jimh  Send Email to jimh     
quote:
Each unit operates very well with only the single transducer.

In order to have side imagining SONAR you need more than one transducer. There are several transducers contained in one assembly. Typically there are three transducers: one aimed to port, one aimed to starboard, and one aimed below the boat. Some of the HUMMINBIRD units have even more elements in their transducers. I imagine this does make the assembly somewhat larger than the typical single-element transducer assembly.

Thanks for the report about installation of HUMMINBIRD side-image SONAR. They certainly have been out in front of all the other brands in this very interesting field of technology.

highanddry posted 08-11-2009 02:04 PM ET (US)     Profile for highanddry  Send Email to highanddry     
I have a Humminbird 987c side scan sonar.I use the single transducer mounted on the transom. I have been able to reduce spray and maintain good operation (for the standard sonar) up to about 35 MPH. I id this by sealing the slot in the transducer with silicone and also by careful installation and height adjustment. I have seen boats with two transducers, one a side scan transducer (standard with unit) and a smaller transducer for high speed use.I have also seen dual side scan transducer installations where the transducers were blocked by engines or hull or other oddities.

There are at least two Humminbird sidescan forums with Humminbird support and input.

Feejer posted 08-20-2009 10:47 AM ET (US)     Profile for Feejer  Send Email to Feejer     
[Changed topic to redirect to a different brand of SONAR and a different side scan system. Please start a new thread if you want to discuss a SONAR other than the HUMMINBIRD Side Imaging SONAR and its transducer assemblies. Thank you--jimh]

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