Kongsberg Simrad SN90 Reference Manual page 584

Simrad SN90 Reference Manual
The SN90 system offers functionality for remote transmit synchronization. It can be set
up to operate in either Master or Slave mode.
In physics, interference is the phenomenon in which two waves superpose each
other to form a resultant wave of greater or lower amplitude. Interference usually
refers to the interaction of waves that are correlated or coherent with each other,
either because they come from the same source or because they have the same or
nearly the same frequency. Interference effects can be observed with all types of
waves, for example, light, radio, acoustic, surface water waves or matter waves.
https://en.wikipedia.org/wiki/Wave_interference — April 2016
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Details
Synchronization Mode
Choose which
synchronization mode to
use.
For "slave" operation,
a remote system (for
example K-Sync or
Simrad TU40) must be available to provide trigger pulses.
For "master" operation, a remote hydroacoustic system (sonar, echo sounder) is
connected. This remote system must be set up in "slave" mode.
Stand-alone
This synchronization mode is used when the SN90 system is working by
itself. Synchronization is turned off. It is the default setting. The SN90
system operates using the current settings for ping interval. The operation is
independent of any trigger signals arriving at the synchronization port.
The
Synchronization Delay
is switched off.
Master
Master mode is used if the SN90 system shall operate as the controlling unit
in a synchronized system. Any peripheral hydroacoustic system(s) are only
permitted to transmit when enabled by the SN90 system. The SN90 system
operates using the current settings for ping interval. It also sends trigger
signals to the peripheral system(s).
This mode is unavailable if you set
Auxiliary Port.
582
dialog box, you must always select
Installation
setting is not applicable when synchronization
Synchronization Port
to save the
Apply
to Transceiver
381294/E