Garmin GPS 24XD HVS NMEA 0183 User manual

GPS 24XD HVS NMEA®0183
INSTALLATION
INSTRUCTIONS
Important Safety Information
CAUTION
Always wear safety goggles, ear protection, and a dust mask
when drilling, cutting, or sanding.
NOTICE
When drilling or cutting, always check what is on the opposite
side of the surface.
For the best performance and to avoid damage to your boat,
read all installation instructions before proceeding. Install the
device per these instructions. Use the appropriate fasteners,
tools, and mounts listed, which are available at most marine
dealers.
The Garmin® GPS 24xd HVS (NMEA 0183) high-sensitivity GPS
antenna provides position information over NMEA 0183. The
GPS 24xd can be connected to a Garmin chartplotter or another
NMEA 0183 compliant device.
For more information, go to garmin.com.
Tools Needed
• Drill
• 3.2 mm (1/8 in.) drill bit
• 19 mm (3/4 in.) drill bit for a pole-mount cable-hole
• 1 in. (25 mm) hole saw for a surface-mount cable-hole
• Countersink bit for mounting on fiberglass
• Screws for under-deck mounting
• Screwdriver, appropriate for the screw type
• Marine sealant (optional)
• Solder and shrink wrap for all wiring connections when
limiting the antenna to 1 Hz (Limiting the Antenna Update
Rate, page 5).
Mounting the Antenna
Antenna Mounting Considerations
CAUTION
Do not install or store the antenna near strong magnets,
including speakers. A strong magnetic field can damage the
antenna.
You can mount the antenna on a flat surface or attach it to a
standard 1 in. OD, 14 threads per inch, pipe-threaded pole (not
included). You can route the cable outside of the pole or through
the pole. For best performance, consider these guidelines when
selecting the antenna mounting location.
• To ensure the best reception, the antenna should be
mounted in a location that has a clear, unobstructed view of
the sky in all directions .
• The antenna should not be mounted where it is shaded by
the superstructure of the boat , a radome antenna, or the
mast.
• The antenna should not be mounted near the engine or other
sources of Electromagnetic Interference (EMI) .
• The antenna should not be mounted near known ferrous
metal objects such as a toolbox or compass.
• A handheld compass should be used to test for magnetic
interference in the area where the antenna is to be mounted.
Your boat, motors, and devices must be on during the test.
If the needle on the handheld compass moves when you hold
it where you intend to mount the antenna, magnetic
interference is present. You must choose another location
and test again.
• Mounting screws are provided with the antenna. If you use
mounting hardware other than the provided screws, the
hardware must be made of quality stainless steel or brass
material to avoid magnetic interference with the antenna.
NOTE: Test all mounting hardware with a handheld compass
to make sure no magnetic fields are present in the hardware.
• If a radar is present, the antenna should be mounted above
the path of the radar . If necessary, the antenna may be
mounted below the path of the radar .
• The antenna should not be mounted directly in the path of the
radar .
• The antenna should not be mounted within 1 m (3 ft.) of a
VHF radio antenna or the path of a radar .
Testing the Mounting Location
1Temporarily secure the antenna in the preferred mounting
location and test it for correct operation.
2If you experience interference with other electronics, move
the antenna to a different location, and test it again.
TA-2020/6796
GUID-04C0F16F-F9A7-4EAC-96FC-C8DF7618E2D8 v2November 2020

3Repeat steps 1–2 until you observe full or acceptable signal
strength.
4Permanently mount the antenna.
Surface Mounting the Antenna
NOTICE
If you are mounting the bracket on fiberglass with screws, it is
recommended to use a countersink bit to drill a clearance
counterbore through only the top gel-coat layer. This will help to
avoid cracking in the gel-coat layer when the screws are
tightened.
Before you permanently mount the antenna, you must test the
mounting location for correct operation (Testing the Mounting
Location, page 1).
1Using the surface-mount bracket as your mounting
template, mark the three pilot-hole locations and trace the
cable-hole in the center of the bracket.
2Set the surface-mount bracket aside.
Do not drill through the bracket.
3Drill the three 3.2 mm (1/8 in.) pilot holes.
4Drill the 19 mm (3/4 in.) cable hole in the center.
5Use the included M4 screws to secure the surface-mount
bracket to the mounting surface.
6Route the cable through the center hole, and connect it to
the antenna.
7Verify the large gasket is in place on the bottom of the
antenna, place the antenna on the surface-mount bracket,
and twist it clockwise to lock it in place.
8Secure the antenna to the mounting bracket with the included
M3 screw .
9Route the cable away from sources of electronic interference.
Mounting the Antenna on a Pole
Mounting the Antenna with the Cable Routed Outside the
Pole
Before you permanently mount the antenna, you must test the
mounting location for correct operation (Testing the Mounting
Location, page 1).
1Route the cable through the pole-mount adapter , and
place the cable in the vertical slot along the base of the
pole-mount adapter.
2Screw the pole-mount adapter onto a standard 1 in. OD, 14
threads per inch, pipe-threaded pole (not included).
Do not overtighten the adapter on the pole.
3Connect the cable to the antenna.
4Place the antenna on the pole-mount adapter and twist it
clockwise to lock it in place.
5Secure the antenna to the adapter with the included M3 set
screw .
6With the antenna installed on the pole mount, fill the
remaining gap in the vertical cable slot with a marine sealant
(optional).
7Attach the pole to the boat if it is not already attached.
8Route the cable away from sources of electronic interference.
Mounting the Antenna with the Cable Routed Through the
Pole
Before you permanently mount the antenna, you must test the
mounting location for correct operation (Testing the Mounting
Location, page 1).
1Position a standard 1 in. OD, 14 threads per inch, pipe-
threaded pole (not included) in the selected location, and
mark the approximate center of the pole.
2Drill a hole using a 19 mm (3/4 in.) drill bit for the cable to
pass through.
3Fasten the pole to the boat.
4Thread the pole-mount adapter onto the pole.
Do not overtighten the adapter.
5Route the cable through the pole and connect it to the
antenna.
6Place the antenna on the pole-mount adapter and twist it
clockwise to lock it in place.
7Secure the antenna to the adapter with the included M3 set
screw .
2

8With the antenna installed on the pole mount, fill the vertical
cable slot with a marine sealant (optional).
9Route the cable away from sources of electronic interference.
Mounting the Antenna Under a Surface
NOTICE
Verify that the supplied screws will not penetrate the surface
before you install the under-deck mounting bracket. If the
supplied screws are too long, use surface-appropriate screws
instead.
Because the antenna cannot acquire signals through metal, it
must be mounted under a fiberglass surface only.
1Determine and test the location under a fiberglass surface
where you want to mount the antenna (Testing the Mounting
Location, page 1).
2Place the adhesive pads on the under-deck mounting
bracket .
3Place the antenna in the under-deck mounting bracket.
4Adhere the under-deck mounting bracket to the mounting
surface.
5Secure the under-deck mounting bracket to the mounting
surface with screws.
6Connect the cable to the antenna .
7Route the cable away from sources of electronic interference.
Connecting the Antenna
Power and NMEA 0183 Wiring
The antenna must be connected to power and to a NMEA 0183
compliant device. The diagrams show how to correctly wire the
antenna. You can connect up to three NMEA 0183 compliant
devices to receive data from one antenna.
Wire Color Function Pin
Red Power (1 A fuse) 3
Black Ground 2
Orange Accessory on 4
Gray Tx/A (Out +) 6
White/Red Tx/B (Out -) 5
White Rx/A (In +) 1
White/Orange Rx/B (In -) 7
Purple Pulse per second (PPS) 8
Pin 1
Pin 2
Pin 8
Connection from the Antenna to a Garmin Chartplotter
(Single-Ended)
Item Description
Antenna
1 A fuse
Power source
Garmin NMEA 0183 compatible chartplotter
3

GPS
24xd
wire
Color GPS 24xd
wire function
Chartplotter
wire
Chartplotter
wire function
Red Power (1 A
fuse)
Power
Black Ground Ground
White/Orange
(ground)
Rx/B (In -)
White Rx/A (In +) Tx/A (Out +)
Gray Tx/A (Out +) Rx/A (In +)
White/Red
(unconnected)
Tx/B (Out -)
Orange Accessory on Accessory on
NMEA 0183 Wiring for Two-Way Communication
Item Description
Antenna
1 Amp fuse
Power source
Garmin NMEA 0183 compatible chartplotter
GPS 24xd Wire Color Chartplotter
Wire
Chartplotter
Wire Function
Red Power (+)
Black Ground (-)
White/Orange
(ground)
Tx/B (Out -)
White Tx/A (Out +)
Gray Rx/A (In +)
White/Red
(unconnected)
Rx/B (In -)
Orange Accessory on
NMEA 0183 Connection Exceptions
CAUTION
The orange accessory on wire is used when connecting the
antenna to a Garmin chartplotter, or other NMEA 0183 device
that has a defined accessory signal wire. If you are connecting
the antenna to a device that does not have an accessory signal
wire, connect the orange wire from the antenna to ground and
connect the antenna power wire to the ignition or install an in-
line switch. The antenna will drain the battery of the boat if it is
not switched.
• If your NMEA 0183 compliant device has only one receiving
wire (Rx), connect it to the gray wire (Tx/A (Out +)) from the
antenna, and leave the white/red wire (Tx/B (Out -) ) from the
antenna unconnected.
• If your NMEA 0183 compliant device has only one
transmitting wire (Tx), connect it to the white wire (Rx/A (In
+)) from the antenna, and connect the white/orange wire
(Rx/B (In -)) from the antenna to ground.
Heading Calibration
After installation is complete, you must calibrate the heading and
perform the auto heading alignment to receive magnetic heading
data.
Performing Basic Calibration
You must be able to view heading data from the antenna on a
connected chartplotter or marine instrument before you can
perform basic calibration. If you cannot view heading data on
your connected display, check the power connections and the
display's NMEA 0183 settings.
When performing basic calibration, you first calibrate the
compass and then align the heading in one continuous
procedure.
NOTE: The boat must be able to reach a cruising speed of at
least 6.4 km/h (4 mph) to perform the heading alignment.
1Drive the boat to a location with calm, open water.
2Set the display to view heading data from the connected
antenna.
NOTE: You must not use GPS Course Over Ground (COG)
to perform basic calibration.
3Disconnect power from the antenna.
4Wait while the boat becomes level and stationary.
5Turn on power to the antenna, and wait until the heading data
appears on the display .
NOTE: If you are performing the first basic calibration after a
factory reset, the heading is blank.
6Within three minutes, complete two full, slow, tight circles ,
taking care to keep the boat as steady and level as possible.
The boat should not list during calibration.
When the antenna is prepared to calibrate the compass, the
heading data disappears from the display
You may receive an error message that the heading was lost.
You can ignore this message.
7Continue turning in the same direction at the same speed
for approximately 1 1/2 rotations until the heading data
appears .
4

When the heading data appears, the compass has been
calibrated successfully, and you can align the heading
(optional).
8Select an option.
• If you want to align the heading to match the front of the
boat, proceed to the next step.
• If you do not want to align the heading, stop turning and
wait, keeping the boat stationary. Over the next two
minutes the heading data should disappear and then
reappear. When the heading data reappears, the compass
should be calibrated and no heading offset should be
applied.
NOTE: If an unwanted heading offset is applied, repeat
the calibration procedure.
9Continue turning in the same direction at the same speed for
approximately ten seconds, until the heading data disappears
from the display .
10When it is safe, straighten the boat and drive in a straight line
at cruising speed (must be at least 6.4 km/h (4 mph)) until
the heading data appears .
When the heading appears, the compass has been
calibrated, and the heading has been aligned on the antenna.
11Test the results of the calibration, and repeat this procedure if
necessary.
Disabling the Magnetic Heading Data
If you cannot mount the antenna in an ideal location for
magnetic heading and GPS performance, you can disable the
magnetic heading data.
1Drive the boat to a location with calm, open water.
2Set the display to view heading data from the antenna.
3Disconnect power from the antenna.
4Wait while the boat becomes level and stationary.
5Turn on power to the antenna, and wait until the heading data
appears on the display .
6Within three minutes, complete two full, slow, tight circles ,
taking care to keep the boat as steady and level as possible.
Heading data disappears to indicate that the antenna has
detected the start of the procedure .
You may receive an error message that the heading was lost.
You can ignore this message.
7Bring the boat to a complete stop , and remain stationary
for two minutes.
After two minutes, the heading data reappears with a fixed
value of 123 degrees to indicate heading will be disabled
on the next power cycle.
NOTE: If the magnetic heading is displayed, the fixed value
is 123 degrees. If the true heading is displayed, the fixed
value may deviate because of corrections from magnetic
variation.
8Disconnect power from the antenna.
9Turn on power to the antenna, and verify that heading has
been disabled .
Limiting the Antenna Update Rate
By default, the antenna outputs position data updates 10 times
per second using serial communications rate of 38400 bps. By
installing the included resistor cable, the antenna can be limited
to output position updates once per second using serial
communications rate of 4800 bps.
1Mount the antenna according to these instructions (Mounting
the Antenna, page 1).
2If necessary, cut the cable to the appropriate length for the
installation.
3Solder the included Update Rate Select cable to the orange
Accessory on wire.
4Use the heat-shrink tubing around the soldered connections.
5If you have not connected the antenna already, connect the
power and data cable (NMEA 0183 Wiring for Two-Way
Communication, page 4).
Cleaning the Outer Casing
NOTICE
Avoid chemical cleaners and solvents that can damage plastic
components.
1Clean the outer casing of the device using a cloth dampened
with a mild detergent solution.
2Wipe the device dry.
Appendix
Software Update
You must update the Garmin chartplotter software when you
install this device. For instructions on updating the software, see
your chartplotter owner's manual at support.garmin.com.
Specifications
Dimensions (diameter x
height)
319/32 × 115/16 in. (91.6 × 49.5 mm)
Weight 201 g (7.1 oz.)
Cable length 30 ft. (9.14 m)
Temperature range From -30° to 80°C (from -22° to 176°F)
Case material Fully gasketed, high-impact plastic alloy
Water rating IEC 60529 IPX6 and IPX71
Compass-safe distance 12.7 mm (0.5 in.)
Power input source 8 to 32 Vdc, unregulated
Max. input current 200 mA @ 12 Vdc
Typical input current 150 mA @ 12 Vdc
Declaration of Conformity
Hereby, Garmin declares that this product is in compliance with
the Directive 2014/53/EU. The full text of the EU declaration of
1 The device withstands incidental exposure to water of up to 1 m for up to 30 min,
and is protected against powerful jets of water. For more information, go to
www.garmin.com/waterrating.
5

conformity is available at the following internet address:
garmin.com/compliance.
Innovation, Science and Economic Development
Canada Compliance
This device contains licence-exempt transmitter(s)/receiver(s)
that comply with Innovation, Science and Economic
Development Canada's licence-exempt RSS(s). Operation is
subject to the following two conditions: (1) this device may not
cause interference, and (2) this device must accept any
interference, including interference that may cause undesired
operation of the device.
FCC Compliance
This device complies with part 15 of the FCC Rules. Operation
is subject to the following two conditions: (1) this device may not
cause harmful interference, and (2) this device must accept any
interference received, including interference that may cause
undesired operation.
This equipment has been tested and found to comply with the
limits for a Class B digital device, pursuant to part 15 of the FCC
rules. These limits are designed to provide reasonable
protection against harmful interference in a residential
installation. This equipment generates, uses, and can radiate
radio frequency energy and may cause harmful interference to
radio communications if not installed and used in accordance
with the instructions. However, there is no guarantee that
interference will not occur in a particular installation. If this
equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off
and on, the user is encouraged to try to correct the interference
by one of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and the
receiver.
• Connect the equipment into an outlet on a circuit different
from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for
help.
This product does not contain any user-serviceable parts.
Repairs should only be made by an authorized Garmin service
center. Unauthorized repairs or modifications could result in
permanent damage to the equipment, and void your warranty
and your authority to operate this device under Part 15
regulations.
Limited Warranty
The Garmin standard limited warranty applies to this accessory.
For more information, go to www.garmin.com/support/warranty.
物質宣言
部件名称 有毒有害物质或元素
铅 汞 镉 六价铬 多溴联苯 多溴二苯醚
印刷电路板组件 X O O O O O
金属零件 X O O O O O
电缆 电缆组件 连接器 X O O O O O
本表格依据 SJ/T11364 的规定编制。
O: 代表此种部件的所有均质材料中所含的该种有害物质均低于
(GB/T26572) 规定的限量
X: 代表此种部件所用的均质材料中, 至少有一类材料其所含的有害
物质高于
(GB/T26572) 规定的限量
*該產品說明書應提供在環保使用期限和特殊標記的部分詳細講解
產品的擔保使用條件。
產
品
連絡地址
製造銷售:台灣國際航電股份有限公司
聯絡地址:新北市汐止區樟樹二路 68 號
電 話:[phone]
客服專線:[phone]
© 2020 Garmin Ltd. or its subsidiaries
Garmin® and the Garmin logo are trademarks of Garmin Ltd. or its subsidiaries,
registered in the USA and other countries. These trademarks may not be used without
the express permission of Garmin.
NMEA® is a registered trademark of the National Marine Electronics Association.
Garmin Corporation
© 2020 Garmin Ltd. or its subsidiaries support.garmin.com