6 Defining the ping (transmission) modes

You can easily control how often the EK80 system shall transmit acoustic energy (a ping) into the water. You can disable the transmission altogether, set it to operate as fast as possible, or select a time interval.

Context

Once pinging is On, use Ping Mode to choose how often the EK80 system shall transmit. Use it to control the behaviour of the transmissions (pinging).

•

Single Ping: The EK80 system transmits (pings) only when you click the ping symbol on the Transmission Mode button.

•

Interval: The EK80 system transmits (pings) with a fixed time interval. Ping Interval permits you to choose the time (in milliseconds) between each transmission (ping).

•

Maximum: The EK80 system transmits (pings) as frequent as possible.

Note

For scientific operations, choose Interval, and select a Ping Interval value according to the survey requirements.

Procedure

Open the Operation menu.

On the Operation menu, set Ping to On.

•

Select the symbol on the right side of the button to start pinging.

•

Select the symbol on the left side the button to stop pinging.

•

Select the middle of the button to open it.

Set Ping Mode to Maximum.

If you choose Maximum, the EK80 system will transmit (ping) continuously and as often as possible. This gives you the maximum refresh rate. The time between each ping (the ping rate) depends mainly on the current range. In some systems, a low performance computer and/or a slow hard disk may reduce the ping rate. How fast your computer communicates with external peripherals may also have an effect on the ping rate.

or:

Set Ping Mode to Interval.

Select Ping Interval to specify the interval between each ping.

Select either side of the button to choose a value. Select the middle of the button to open it. If you have a keyboard connected to the EK80 system, type the requested value.

You can also change the value by selecting - and holding - the middle of the button, and move the cursor sideways. Drag the cursor sideways to increase or decrease the value. Release the mouse button when requested value is shown.

or:

Set Ping Mode to Single Ping.

Select the ping symbol on the right side of the button to transmit one single ping.