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Simrad SN90 Operator Manual
Defining the ping (transmission) modes
You can easily control how often the SN90 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
how often the SN90 shall transmit (ping). Use it to
control the behaviour of the transmissions (pinging).
• Single Ping: The SN90 transmits (pings) only when
you select the symbol on the right side of the button.
• Interval: The SN90 transmits (pings) with a fixed
time interval.
Ping Interval
the time (in milliseconds) between each transmission (ping).
• Maximum: The SN90 transmits (pings) as frequent as possible.
Procedure
1
Open the
Operation
2
Set
to Normal.
Operation
3
Set
Transmission Mode
• 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.
If you choose Maximum, the SN90 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 Processor Unit and/or a slow hard disk may reduce the ping rate.
How fast your Processor Unit communicates with external peripherals may also
have an effect on the ping rate.
or:
4
Set
Transmission Mode
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 SN90, 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.
48
to choose
Transmission Mode
permits you to choose
menu.
to Maximum.
to Interval.
381295/B
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