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.
In order to transmit ("ping"), you must set the MF90 system to Normal operating mode. This is the default mode when the MF90 system is turned on.
Replay mode allows you to play back previously recorded raw data. The MF90 system cannot operate normally while in Replay mode. Neither transmission nor reception takes place.
Inactive mode is provided to pause the operation temporarily. Neither transmission nor reception takes place. The current echoes are removed from the display presentation.
You can set up the MF90 system to transmit (ping) as often as possible. This gives you the maximum refresh rate.
You can set up the MF90 system to transmit a single ping only when you want it.
You can set up the MF90 system to transmit pings with a fixed time interval.
You are permitted to adjust the output power from the MF90 system. Tx Power is used to control the amount of power that is transmitted with each ping.
The Frequency function is used to control the centre frequency of the acoustic transmissions (pings). You can select any operational frequency from 75 to 85 kHz. All types of noise matter when you wish to find the best operating frequency.
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.
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.
