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Simrad MF90
System diagram
The system diagram identifies the main components of a basic MF90 system. Only the main connections between the units are shown. Detailed interface capabilities and power cables are not shown.

About this manual
The purpose of this publication is to provide the descriptions, procedures and detailed parameter explanations required to allow for safe and efficient use of the MF90 system. The publication also provides you with a thorough understanding of the parameters and adjustments provided by the MF90 system.
Simrad MF90
- Important
  The MF90 is an advanced product. It is used with other advanced products. There is important information that you need to know.
- System description
  The Simrad MF90 is an omnidirectional high-frequency fish-finding sonar.
- System diagram
  The system diagram identifies the main components of a basic MF90 system. Only the main connections between the units are shown. Detailed interface capabilities and power cables are not shown.
- System units
- General safety rules
  Safety is important. Observe and follow these safety precautions during all installation and maintenance work.
- Network security
  If a MF90 system is connected to a local area network, data security is important.
- Support information
  If you need technical support for your MF90 system you must contact your local dealer, or one of our support offices. A list of all our offices and dealers is available on our website. You can also contact our main support office in Norway.
Operating procedures
Maintenance procedures
User interface
Menu system
Functions and dialog boxes
Concept descriptions
Technical specifications
The technical specifications summarize the main functional and operational characteristics of the MF90 system. They also provide information related to power requirements, physical properties and environmental conditions.
Datagram formats
The MF90 system can send and receive information to and from several different peripherals. All transmissions take place as datagrams with data sentences. Each datagram has a defined format and length.
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System diagram

The system diagram identifies the main components of a basic MF90 system. Only the main connections between the units are shown. Detailed interface capabilities and power cables are not shown.


Display (The second display is optional.) Processor Unit Operating Panel Transceiver Unit	Motor Control Unit Hull Unit Hoisting motor Transducer

In this publication, the computer can also be referred to as the Processor Unit, and vice versa.

Unless otherwise specified in a contract, the display is not included in the standard delivery. This is a commercial item that can be purchased locally.

A choice of hull units is available for the MF90 system. The hull units offer different lowering depths and cable lengths. The same transducer is used on all hull unit types. The same installation trunk is used on all hull unit types.