Kongsberg Simrad ST90, Reference Manual

Page: 64 / 690

62
442704/A
Procedure
1 Open the
Operation
menu.
2 Set
Operation
to Normal .
The
Operation
function controls the operating mode of the ST90 system. Normal
mode allows the ST90 system to transmit ("ping") through the water, and to receive
the echoes.
3 Set
Transmission Mode
to Maximum .
The
Transmission Mode
function enables or disables the ST90 transmissions into the
water. If you choose Maximum , the ST90 system will transmit (ping) continuously and
as often as possible. This gives you the maximum refresh rate.
The ping rate is normally limited by the maximum range settings. It also depends on
hardware limitations. This may be, for example, how fast your ST90 system can handle
the information from each ping, how fast it communicates with external peripherals, or
how long time it uses to save data.
4 Set
Tx Power
to Maximum .
Result
The ST90 system is now transmitting acoustic pulses ("pinging") into the water.
Related topics
Getting started, page 34
Starting normal operation, page 52
Operation function, page 431
Adjusting the radius of the search area
Some echoes are close, others are further away. It is often necessary to adjust the radius of
the search area. On the ST90 system, this is referred to as
range .
Context
The range setting defines from how "far" you want to detect echoes. In other words, you
specify the horizontal or vertical distance from the vessel to the outer edge of the search area.
Simrad ST90 Reference Manual