Furuno GP-39 User manual

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Mod
el: GP-39
Using the GP39 as an SCX-21
(NMEA0183) Display and Setting
Device
1. Navigation Display for SCX-21
2. Setting Menus for SCX-21
3. Interconnection and Settings
3.1. Interconnection
3.2. Setting – Operation Mode
3.3. Update Guidance
INDEX

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Model:
GP-39 with Model: SCX-21
GP-39 version 03.01 software and
above includes a function, which allows
the GP39 to be used as a data display as
well as an initial setting device of the
SCX-21 SATELLITE COMPASS. This
document describes the displays and
setting options, as well as interconnection
and setup instructions.
1. Navigation Displays for SCX-21
The following display pages are added to the GP-39 with v3.01 software and above to
show data from an SCX-21.
Display Example Remarks
Satellite Monitor
In addition to the conventional page,
GNSS satellite display, 4-antenna
display, and masking area display are
also supported.
Heading
The heading data from SCX-21 is
displayed in the same graphical image
as the RD-33, SC-70/130, etc.
3-Axis Speed
3-axis speed is indicated numerically
with arrows to indicate the transverse
speed at the bow and stern.
ROT
T
he ROT meter as well as heading and
SOG helps to see how own ship is
turning.
Attitude –
Roll/Heave/Pitch
The Altitude page shows how own
ship is rolling, pitching, and heaving
graphically and numerically.

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2. Setting Menus for SCX-21
In addition to the conventional GP-39 settings, the following items are added.
 Prohibited GNSS satellite (QZSS, GPS, GLONASS, Galileo)
 Offset (Heading, Pitch, Roll, SOG/3-Axis SPD, Air Pressure, Air Temperature)
 Smoothing (SOG/COG, 3-Axis Speed, ROT)
 DR time
 Ship size, antenna location, 3-axis speed position
 I/O Setup (Data2, Data3) (Data 2 is output only)
 While the SCX-21 has three (3) output ports, Data 1 is used to connect to the GP-
39 and NMEA0183 data is output from Data 2 and 3.
Sample Screens
Offset Smoothing
Ship Size, ANT/CALC-SPD POSN Antenna Position in Illustration

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3. Interconnection and Settings
3.1. Interconnection
Notes:
(1) When the SCX-21 is connected to the GP-
39, the original antenna GPA-017 or
GPA-C01 CANNOT be used.
(2) In the configuration of an SCX-21 with a GP-39, the GP-39 NMEA0183 output port is occupied
by the SCX-21. In order to output/input data from/to the SCX-21, utilize Data 2 and
Data 3 ports of SCX-21. (Data 2 is output only)
3.2. Setting – Operation Mode
Change the operation mode of the GP39 to make the GP-39 work as an SCX-21 display.
Option 1 – When turning the power on for the
first time…
When the SCX-21 is turned on for the first time,
the Installation menu will launch: Access
[Operation Mode] and select [SCX-21].
(Default: [GP-39]) After changing the mode,
the GP-39 will restart.
Make sure to connect the GP-39 to the SCX-21 – Data 1 port.

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Option 2 – If the GP-39 has been turned on
before…
In [Menu] – [System] – [Operation Mode],
select [SCX-21]. (Default) [GP-39]) After
changing the mode, the GP-39 will restart.
3.3. Update Guidance
For a GP-39 with v02.01 or earlier, update to v03.01 or higher to connect to the SCX-
21.
If the GP-39 is already loaded with v3.01 or higher, change the operation mode to
[SCX-21] to use the GP39 with the SCX-21. Set the mode to [GP-39] as default to use
it as a GP-39 with a GPA-017 or GPA-C01 GPS antenna.
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