KNS Ku-BAND RX, Installation And Operation Manual

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(Refer to ‘7.1.3 Ship Heading’ for inputting the heading value.) The PCU uses the
heading angle when the PCU is receiving the STR ID command from the ACU or
when the antenna is searching for the satellite after initializing of the antenna.
c. ENHD FAILED (Enhanced Gyro Failure Mode): The ‘ENHD FAILED’ mode is an
enhanced version of the ‘FAILED’ mode. In the case of the ‘ENHD FAILED’ mode,
the PCU uses the heading angle when the antenna starts another search for the
satellite after search failure.
NOTE : The VS61 points to the calculated position for about 30 seconds when the
antenna’s satellite search fails, whereupon the antenna starts another search for the
satellite.
d. INT. COMPASS (Internal Magnetic Mode): The VS61 has an internal magnetic
sensor in a sensor cage. The PCU uses the azimuth angle obtained from the
internal magnetic sensor for its computation.
NOTE : “INT. COMPASS’ mode is useful when testing the antenna on the ground without
an external gyro signal. However, this mode is not recommended in cases where any of
the ship’s material consists of a magnetic metal, as this can affect the magnetic field of
the internal magnetic sensor, and the azimuth angle of the antenna will consequently
differ from the real azimuth angle. If there are no non-magnetic metals among the
materials of your ship, you can use the ‘INT. COMPASS’ mode. But internal magnetic
value is more incorrect than gyro compass value, so we recommend that the antenna is
used with a gyro compass.
7.2.8 GPS Output Format & Baudrate
The ACU provides GPS information via two external ports, the NMEA output port and
the CONSOLE port. The format and baud rate of each port can be configured separately.
The pin-out from the console port is specially designed. Please refer to ‘3.6.3.4 RJ-45
Connection for Satellite Modem’ for the pin-out of the console port.
NMEA DB-9 FORMAT: GPRMC/GPGLL/GPGGA
CON RJ-45 FORMAT: GPRMC/GPGLL/GPGGA
NMEA DB-9 BAUDRATE: 1200~115200
CON RJ-45 BAUDRATE: 1200~115200