Simrad HS80/MX575C User manual

ENGLISH
HS80/MX575C
User Manual

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Preface | HS80 / MX575C User Manual
Preface
Disclaimer
As Navico is continuously improving this product, we retain the right to make changes to the
product at any time which may not be reflected in this version of the manual. Please contact
your nearest distributor if you require any further assistance.
It is the owner’s sole responsibility to install and use the equipment in a manner that will
not cause accidents, personal injury or property damage. The user of this product is solely
responsible for observing safe boating practices.
NAVICO HOLDING AS AND ITS SUBSIDIARIES, BRANCHES AND AFFILIATES DISCLAIM ALL
LIABILITY FOR ANY USE OF THIS PRODUCT IN A WAY THAT MAY CAUSE ACCIDENTS, DAMAGE
OR THAT MAY VIOLATE THE LAW.
Governing Language: This statement, any instruction manuals, user guides and other
information relating to the product (Documentation) may be translated to, or has been
translated from, another language (Translation). In the event of any conflict between any
Translation of the Documentation, the English language version of the Documentation will be
the official version of the Documentation.
This manual represents the product as at the time of printing. Navico Holding AS and its
subsidiaries, branches and affiliates reserve the right to make changes to specifications
without notice.
Compliance
The HS80 / MX575C systems complies with the following regulations:
• Marine Equipment Directive (MED) 2010/68/EU, and the last modification by Directive
2 011/ 75/ EU:
- HS80: Annex A.1 - 4.41 Transmitting heading device THD
- MX575: Annex A.1 - 4.41 Transmitting heading device THD
Annex A.1 - 4.14 GPS equipment
Annex A.1 - 4.50 DGPS equipment
See also “Certifications”on page 35,
For more information please refer to our website: pro.simrad-yachting.com.
The Wheelmark
The HS80 / MX575C systems are produced and tested in accordance with the European
Marine Equipment Directive 2010/68/EU. This means that the systems comply with the
highest level of tests for nonmilitary marine electronic navigation equipment existing today.
The Marine Equipment Directive 2010/68/EU (MED) for ships flying EU or EFTA flags applies to
all new ships, to existing ships not previously carrying such equipment, and to ships having
their equipment replaced.
This means that all system components covered by annex A1 must be type-approved
accordingly and must carry the Wheelmark, which is a symbol of conformity with the Marine
Equipment Directive.
Copyright
Copyright © 2012 Navico Holding AS.
Warranty
The warranty card is supplied as a separate document.
In case of any queries, refer to the our website: pro.simrad-yachting.com.

2 | Preface | HS80 / MX575C User Manual
About this manual
This manual is a reference guide for installing and using the HS80 / MX575C systems.
The latest available manual version can be downloaded from our web sites.
Important text that requires special attention from the reader is emphasized as follows:
¼Note: Used to draw the reader’s attention to a comment or some important information.
Warning: Used when it is necessary to warn personnel that they
should proceed carefully to prevent risk of injury and/or damage to
equipment/personnel.

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Preface | HS80 / MX575C User Manual
Contents
4 Introduction
4 Overview
5 Parts list
6 Installation
6 Mounting location
8 Mounting orientation
9 Mounting options
15 Por ts
19 Powering the HS80/MX575C
20 Connecting the HS80/MX575C to external devices
21 Default parameters
22 Operation
22 GPS overview
23 HS80/MX575C overview
27 Common commands and messages
31 Troubleshooting
33 Technical specications
33 Specifications
35 Certifications
36 Output messages
42 Proprietary Input data messages
50 Wiring Diagrams
50 MX420 CDU to MX575C interface diagram
50 MX510/MX512 to MX575C interface diagram
51 HS80/MX575C interface via MX510 junction Box
52 MX512 to MX575C interface diagram via MX512 Junction Box
53 1PPS output of MX575C
53 PC to MX575C interface diagram

4 | Introduction | HS80/MX575C User Manual
Introduction
Overview
The HS80 GPS Compass and the MX575C DGPS Compass are based upon a new generation
GPS engine technology.
Figure 1-1: HS80/MX575C side view
¼Note: When referring to both the HS80 GPS Compass and the MX575C DGPS Compass this
manual uses the term HS80/MX575C. When referring to either product, this manual uses
either HS80 or MX575C, respectively.
The HS/80/MX575C is a complete GPS compass and positioning system in a single enclosure
that requires only one power/data cable connection. With its NMEA 2000/NMEA 0183 support
and ease of installation, the HS80/MX575C is the perfect solution for marine applications.
The HS80/MX575C is an integrated system that houses the following:
- New GPS engine technology
- Dual GPS antennas
- DGPS beacon module and H-field beacon antenna (MX575C only)
- Power supply
- Single axis gyro
- Tilt sensor on each axis (X and Y axes)
The gyro and tilt sensors are present to improve system performance and to provide backup
heading information in the event that a GPS heading is not available due to signal blockage.
¼Note: The HS80 GPS Compass is identical to the MX575C DGPS Compass with the exception
that it does not contain a DGPS beacon receiver and H-field antenna. If you purchased the
HS80 GPS Compass, disregard the sections of this manual that discuss the beacon signal,
receiver operation, and implications to installation relating to the beacon signal.
The new GPS engine technology supports multiple RF front ends - enabling tighter coupling
of measurements from separate antennas for use in heading-based products. Users will
achieve excellent accuracy and stability due to the more accurate code phase measurements,
improved multipath mitigation, and fewer components.
The HS80/MX575C GPS antennas are separated by 50 cm between their phase centers,
resulting in +/- 0.5° RMS heading performance. The HS80/MX575C provides heading and
positioning updates of up to 20 Hz and delivers positioning accuracy of +/- 1.0 m 95% of
the time when using differential GPS corrections from beacon (MX575C only) or from Space
Based Augmentation Systems (SBAS).
The HS80/MX575C also features the GPS’exclusive COAST™ technology that enables the
GPS receivers to utilize old differential GPS correction data for 40 minutes or more without
significantly affecting the positioning quality. The HS80/MX575C is less likely to be affected
by differential signal outages due to signal blockages, weak signals, or interference when
using COAST.
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Introduction | HS80/MX575C User Manual
Parts list
¼Note: The HS80/MX575C’s parts comply with IEC 60945 Section 4.4: “exposed to the weather.”
The sections below list parts included in your HS80 kit and the MX575C kit.
HS80 Parts list
Part Name Qty Part number
HS80 GPS Compass 1 000-10938-001
Serial-to-NMEA 2000 adapter 1 000-10941-001
Manual 1 988-10221-001
Kit containing the following:
• Clamp 1
• Screw 1
• Washer 1
Optional items
15 meter Power/data cable 000-10939-001
30 meter antenna cable 000-10940-001
MX575C Parts list
Part Name Qty Part number
MX575C DGPS Compass 1 000-10747-001
Power/data cable, 15 m 1 000-10939-001
Manual 1 988-10221-001
Kit containing the following:
• Clamp 1
• Screw 1
• Washer 1
Optional items
Serial-to-NMEA 2000 adapter 000-10941-001
30 meter antenna cable 000-10940-001

6 | Installation | HS80/MX575C User Manual
Installation
Mounting location
This section provides information on determining the best location for the HS80/MX575C.
GPS reception
When considering where to mount the HS80/MX575C, consider the following GPS reception
recommendations:
• Consider GPS (and hence SBAS) reception, ensuring there is a clear view of the sky available
to the HS80/MX575C so the GPS and SBAS satellites are not masked by obstructions that may
reduce system performance
• Since the HS80/MX575C computes a position based on the internal primary GPS antenna
element, mount the HS80/MX575C where you desire a position with respect to the primary
GPS antenna (located on the end opposite the recessed arrow on the underside of the
enclosure).
• Locate any transmitting antennas away from the GPS Compass by at least a few meters to
ensure tracking performance is not compromised, giving you the best performance possible
• Make sure there is enough cable length to route into the vessel to reach a breakout box or
terminal strip
• Do not locate the antenna where environmental conditions exceed those specified in
“Environmental spec”on page 34.
Beacon reception
When using the MX575C internal beacon receiver as the correction source, consider the
possible mounting locations from the perspective of ambient noise within the beacon band
(300 KHz).
Keep the following in mind when deciding upon a location with respect to maximizing
beacon performance:
• Ensure that the antenna is as far as possible from all other equipment that emits
electromagnetic interference (EMI) such as DC motors, alternators, solenoids, radio
transmitters, power cables, display units, and other electronic devices.
• If you are installing the antenna on a vessel, mount the MX575C considering maintenance
and accessibility. In addition, ensure that the antenna is not obscured by the metal mast, guy
wires or metal railings on the vessel.
• If radar(s) or INMARSAT system is present, mount the GPS Compass antenna outside the path
of the transmission beam.
The MX575C’s internal beacon receiver calculates a signal-to-noise ratio (SNR), measured in
decibels (dB) that indicates the receiver’s performance. The SNR is the height of the signal
above the noise floor: the higher the SNR, the better your beacon receiver demodulates the
signal. The optimum antenna location will be a position where your average SNR is highest.
You should turn on all accessories that you intend to use during normal operation when
locating the best position for the antenna. By monitoring the SNR, you can determine
the optimum location with respect to beacon reception. The SNR is available in the GPS6
(Beacon Status) screen of the MX CDU.
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Installation | HS80/MX575C User Manual
Environmental considerations
The HS80/MX575C is designed to withstand harsh environmental conditions; however,
adhere to the following limits when storing and using the GPS Compass:
• Operating temperature: -30°C to +70°C (-22°F to +158°F)
• Storage temperature: -40°C to +85°C (-40°F to +185°F)
• Humidity: 95% non-condensing
VHF interference
VHF interference from such devices as cellular phones and radio transmitters may interfere
with GPS operation. For example, if installing the HS80/MX575C near marine radios consider
the following:
• VHF marine radio working frequencies (Channels 1 to 28 and 84 to 88) range from 156.05 to
157.40 MHz. The GPS working center frequency is 1575.42 MHz. The bandwidth is +/- 2MHz to
+/- 10 MHz, which is dependent on the GPS antenna and receiver design
• VHF marine radios emit strong harmonics. The 10th harmonic of VHF radio, in some channels,
falls into the GPS working frequency band, which may cause the SNR of GPS to degrade
significantly
• The radiated harmonic signal strength of different brands/models varies.
• Follow VHF radio manufacturers’ recommendations on how to mount their radios and what
devices to keep a safe distance away.
• Handheld 5W VHF radios may not provide suitable filtering and may interfere with the HS80/
MX575C’s operation if too close.
Before installing the HS80/MX575C use the following diagram to ensure there are no nearby
devices that may cause VHF interference.
Use these minimum distances
to determine where to place
the HS80/MX575C
1.5 m radius at top
(minimum)
1.0 m radius at base (minimum)
VHF antenna
Figure 2-1: HS80/MX575C minimum distance from nearby VHF radios

8 | Installation | HS80/MX575C User Manual
Mounting orientation
The HS/80/MX575C outputs heading, pitch, and roll readings regardless of the orientation
of the antennas. However, the relation of the antennas to the boat’s axis determines
whether you will need to enter a heading, pitch, or roll bias. The primary antenna is used
for positioning and the primary and secondary antennas, working in conjunction, output
heading, pitch, and roll values.
¼Note: Regardless of which mounting orientation you use, the HS80/MX575C provides the
ability to output the heave of the vessel. This output is available via the $GPHEV message.
Parallel orientation
The most common installation is to orient the HS80/MX575C parallel to, and along the
centerline of, the axis of the boat. This provides a true heading. In this orientation:
• If you use a gyrocompass, you can enter a heading bias in the HS80/MX575C to calibrate the
physical heading to the true heading of the vessel.
• You may need to adjust the pitch/roll output to calibrate the measurement if the Vector is not
installed in a horizontal plane.
Perpendicular orientation
You can also install the antennas so they are oriented perpendicular to the centerline of the
boat’s axis. In this orientation:
• You will need to enter a heading bias of +90° if the primary antenna is on the starboard side
of the boat and -90° if the primary antenna is on the port side of the boat.
• You will need to configure the receiver to specify the GPS antennas are measuring the roll axis
using $JATT,ROLL,YES.
• You will need to enter a roll bias to properly output the pitch and roll values.
• You may need to adjust the pitch/roll output to calibrate the measurement if the Vector is not
installed in a horizontal plane.
Figure 2-2 and Figure 2-3 provide mounting orientation examples.
Recessed arrow located on
the bottom of the enclosure
Forward motion
Figure 2-2: Recommended orientation and resulting signs of HPR values

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Installation | HS80/MX575C User Manual
Recessed arrow located on
the bottom of the enclosure
Forward motion
Figure 2-3: Alternate orientation and resulting signs of HPR values
HS80/MX575C alignment
The top of the HS80/MX575C enclosure incorporates sight design features to help you align
the enclosure with respect to an important feature on your vessel.
To use the sights, center the small post on the opposite side of the enclosure from you,
within the channel made in the medallion located in the center of the enclosure top as
shown in Figure 2-4 and Figure 2-5. Alignment accuracy when looking through the long
site (Figure 2-4) is approximately +/- 1°, while alignment through the short site (Figure 2-5) is
approximately +/- 2.5°.
Figure 2-4: Long sight alignment Figure 2-5: Short sight alignment
If you have another accurate source of heading data on your vessel, such as a gyrocompass,
you may use its data to correct for a bias in HS80/MX575C alignment within the HS80/
MX575C software configuration. Alternatively, you can physically adjust the heading of
the HS80/MX575C so that it renders the correct heading measurement; however, adding a
software offset is an easier process.
Mounting options
The HS80/MX575C allows for two different mounting options: flush mount and pole mount.
• Flush mount - The bottom of the HS80/MX575C contains eight M8-1.25 holes for flush
mounting the unit to a flat surface (see Figure 2-6). The eight holes comprise two sets of four
holes. The inner four holes are in the same location as the HS70, allowing you to use the HS80/
MX575C as a drop-in replacement. The outer four holes provide a wider mounting option.
• Pole mount - The bottom of the HS80/MX575C contains a mounting hole (1”thread, 0.9”
depth) for easy pole mounting. Hand tighten until snug (do not over tighten). The set screws
on the long sides of the base (see middle drawing in Figure 2-6) allow you to secure the HS80/
MX575C in place (3/16” Allen wrench not included).