Quick Electronics QK-A034 WIFI and USB Multiplexer NMEA SeaTalk User Manual

Quick Electronics QK-A034 WIFI and USB Multiplexer NMEA SeaTalk

Features

• Bi-directional WiFi, USB and NMEA 2000
• Combines inputs data from up to three NMEA 0183 input devices and one SeaTalk input
• Galvanically isolated NMEA 0183 and SeaTalk input ports. (also called opto-isolation. Galvanically isolation prevents unwanted currents between devices, preventing equipment damage and interference with radio signals
• Converts common SeaTalk1 data types to NMEA 0183 sentences
• NMEA 0183 to NMEA 2000 converter (converts common sentences to PGNs and visa-versa)
• WiFi: Ad-hoc mode allows up to 4 connections to the internal WiFi module simultaneously
• WiFi: Station mode allows for the connection of the A034 to your router/ access point for greater number of wireless users and WiFi range.
• WiFi: Standby option (disable WiFi)
• WiFi and USB input and output of combined data in NMEA 0183 sentence format
• WiFi and USB additionally output of NMEA 2000 network PGNs (in both 0183 sentences and PCDIN format)
• Compatible with Windows, Mac, Linux
• Compatible with Android and iOS via WiFi
• Filtering allows for overflow reduction and additional configuration.
• Routing reduces the risk of data over-flow.

Introduction

The QK-A034 is a sophisticated NMEA 2000 to WiFi and USB multiplexer, with added flexibility for your growing system.

In addition to bi-directional NMEA 2000 to WiFI and USB, the A034 provides a seamless connection of NMEA 0183 and Raymarine SeaTalk1 input devices to your NMEA 2000 network, WiFi and USB devices. The internal SeaTalk converter allows the A034 to listen on the SeaTalk bus and convert SeaTalk data to NMEA 0183 and then NMEA 2000 messages. The A034 multiplexer has three NMEA 0183 inputs (listener-ports), one SeaTalk1input, a bi-directional NMEA 2000 output port, bi-directional WiFi and bidirectional USB port.

The A034 can be used out of the box for standard functionality or configured for additional sophistication.
Through advanced filtering and routing options, the A034 allows controlled filtering of data input, blocking of unwanted data and routing for data management and overflow reduction.
Default Standard Functionality: The multiplexer converts and combines data received on the listener portsand sends this data to NMEA 2000 output port, WiFi interface and USB.

• Bi-directional WiFi: the A033 allows for wireless connection to
  autopilots and other NMEA devices if desired. Data from instruments is available wirelessly though WiFi connections, giving complete freedom to navigate, monitor and control from anywhere on board. Up to 4 connections from iPads, iPhone, Android phones and tablets or other WiFi enabled devices can connect directly to the A033 with no need for a WiFi access point. (Thought it can also be connected to an access point/router if desires (see WiFi section)

• Bi-directional USB: The USB port also supports bi-directional communications. It allows a computer-based, navigation applications to send sentences through the multiplexer to control an autopilot and other devices. The USB port is also used for configuration of specific WiFi and NMEA ports settings.

Additional Configurable Functionality (through Windows software via USB):

• Additional WiFi options.
• Filtering options: Each input also has a flexible filter that can be configured to pass or block specific sentences. This frees up bandwidth, significantly reducing the possibility of data overflow and resulting loss of data.
• Routing options: t he powerful routing feature allows the NMEA, SeaTalk and WiFi input data to be routed from any input to specific outputs.

Mounting

The A034 was designed for the small-commercial, leisure and fishing boat and vessel monitoring markets. Although the A034 case is water resistant, the terminals are open and seawater can cause a short circuit.
A034 comes with an extruded aluminium enclosure with external dimensions of 114.5 x 110 x 32 mm.
The A034 should be mounted in a dry place such as behind the instrument panel on a flat surface. Ensure there is enough space around the multiplexer to connect the wirings.

Connections

The A034 multiplexer has the following options for connection to inputs, outputs and host devices.

• NMEA 2000 input and output
• WiFi input and output
• USB input and output
• 3x NMEA 0183 inputs
• 1x SeaTalk1 input

Note: Power off all the devices before connecting!

Status LED’s

A034 features eight LEDs which indicate SeaTalk in, NMEA IN, IN2, IN3, NMEA2000 OUTPUT, USB, WIFIand Power status respectively.
The status LEDs on the panel show port activity and system status.

• SeaTalk and NMEA IN1/2/3: LEDs will flash for each valid message received.
• NMEA 2000 OUT: LED will flash for each valid NMEA 2000 PGN sent out on NMEA 2000 port.
• USB: LED will flash for each valid NMEA message sent to USB output.
• WiFi: LED will flash for each valid NMEA message sent to WiFi output.
• PWR (Power): LED light is constantly lit in red when the device is powered.

NMEA 0183 Inputs

A034 has three NMEA inputs called IN1 to IN3. Each input should be connected to one device only.
These inputs are galvanically isolated from the A034 multiplexer, as specified by the NMEA 0183 standard.
Every NMEA input on the A034 is galvanically isolated (also called opto- isolation). A galvanically isolated input prevents unwanted currents flowing between the instruments and the multiplexer, protecting from equipment damage and reducing interference with radio signals.
Each input has an internal filter which can be configured to pass or block specific sentences from the input devices (See the Configuration section). A034 combines these filtered NMEA 0183 inputs with the NMEA sentences converted from the SeaTalk input into one NMEA0183 serial data stream.
NMEA baud rates are set to the following default settings:

• NMEA IN 1: 4800 bps
• NMEA IN 2: 4800 bps
• NMEA IN 3: 38400bps

These can be adjusted as required, using the Configuration software (see the Configuration section).
Regarding connection to external NMEA devices: Although the NMEA 0183 standard specifies signal names, voltage levels and connection methods clearly; in reality, this standard has been interpreted with variation between manufacturers. To ensure the A034 is not damaged please double-check the specifications of all devices before connecting them.

Please note:
The A034 NMEA 0183 connects use the RS422 (differential) protocol.
Connect the + and – terminals of the NMEA input on the A034, to the + and – terminals of the output on the instrument (e.g., wind / depth / heading sensor). These instrument terminals may also be labelled A/B, Data+/Data-, RX+/RX-, In+/In–.
If your connecting device uses the older RS232 (single-ended) protocol, you can still connect to the A034, you may simply need a QK-AS03 Protocol Bridge for your connection. (https://www.quark-elec.com/product/qk-as03-nmea- protocol-bridge/).

SeaTalk1 Input

The built-in SeaTalk1 to NMEA converter translates SeaTalk data into NMEA sentences. The SeaTalk port has 3-Pin terminals for connection to the SeaTalk bus. Ensure the connection is correct before powering up. Inaccurate connection could damage the A034 and other devices on the SeaTalk Bus.
The SeaTalk converter converts the SeaTalk messages in the conversion table below. When a SeaTalk message is received, A034 checks if the message is supported. When the message is recognized as being supported, the message is extracted, stored and converted to an NMEA sentence. Any unsupported datagrams are ignored. These converted NMEA messages are filtered and then combined with NMEA data received on the other inputs.
This function allows the NMEA multiplexer to listen on the SeaTalk bus. Only one SeaTalk input is needed as the SeaTalk bus is a single-cable system that connects all instruments. The A034 SeaTalk to NMEA converter works in one direction only. NMEA sentences are not converted to SeaTalk.

Supported SeaTalk 1 Datagrams

SeaTalk| NMEA| Description
00| DBT| Depth below transducer
10| MWV| Wind angle, (10 and 11 combined)
11| MWV| Wind speed, (10 and 11 combined)
20| VHW| Speed through water, includes heading when present
21| VLW| Trip mileage (21 and 22 combined)
22| VLW| Total mileage (21 and 22 combined)
23| MTW| Water temperature
25| VLW| Total and Trip mileage
26| VHW| Speed through water, includes heading when present
27| MTW| Water temperature
50| —| GPS latitude, value stored
51| —| GPS longitude, value stored
52| —| GPS speed over ground, value stored
53| RMC| Course over ground. RMC sentence is generated from stored values from other GPS related datagrams.
54| —| GPS time, value stored
56| —| GPS date, value stored
58| —| GPS lat/long, values stored
89| HDG| Magnetic heading, including variation (99)
99| —| Magnetic variation, value stored

AS the table shows, not all datagrams result in an NMEA 0183 sentence. Some datagrams are only used to retrieve data, which is combined with other datagrams to create one NMEA 0183 sentence.

NMEA 2000 Port

The A034 converter provides an NMEA 2000 network connection. The A034 combines all the NMEA 0183 data inputs and then converter them to be NMEA 2000 PGNs and visa-versa. With A034, WiFi data, USB data and NMEA 0183 input and SeaTalk1 input data can be available on new NMEA 2000 capable instruments, such as NMEA 200 chart plotters.

The A034 requires power from an NMEA 2000 backbone.
NMEA 2000 network must at least consist of, a powered backbone with two terminators (termination resistors), to which the multiplexer and any other NMEA 2000 devices must be connected.
Each NMEA 2000 device connects to the backbone. It is not possible to simply connect two NMEA 2000 devices directly together.
A034 is supplied with a spurred five-core screened cable for the NMEA 2000 connection, fitted with a male micro-fit connector. Simply connect the cable to the network backbone.

Conversion Lists

The following tables lists the supported NMEA 2000 PGN’s (parameter group numbers) and NMEA 0183 sentences. It is important to check the table to confirm that the A034 will convert the
sentences/PGNs required.
Through USB and WiFi, the A034 will output in NMEA 0183 format, including all NMEA 0183 messages received and NMEA 0183 messages converted from the NMEA 2000 network.
WiFi/USB inputs are NMEA 0183 messages and are converted to NMEA 2000 for the NMEA 2000 bus.
The following is a typical PCDIN message format outputted through WiFi and USB. The chart software will convert this into more meaningful information.
—Received message: $PCDIN, 01F119, 00000000, 16,0064050800FFFF0C*5B—

NMEA 0183 to NMEA 2000 conversions
The following NMEA 0183 to NMEA 2000 conversions are currently supported.

NMEA 0183

sentence

| Function| Converted to NMEA 2000 PGN/s
---|---|---
DBT| Depth Below Transducer| 128267
DPT| Depth| 128267
GGA| Global Positioning System Fix Data| 126992, 129025, 129029
GLL| Geographic Position Latitude/Longitude| 126992, 129025
GSA| GNSS DOP and Active Satellites| 129539
GSV| GNSS Satellites in View| 129540
HDG| Heading, Deviation & Variation| 127250
HDM| Heading, Magnetic| 127250
HDT| Heading, True| 127250
MTW| Water Temperature| 130311
MWD| Wind Direction & Speed| 130306
MWV| Wind Speed and Angle (True or relative)| 130306
RMB| Recommended Minimum Navigation Information| 129283,129284
RMC| Recommended Minimum Specific GNSS Data| 126992, 127258, 129025, 12902
ROT| Rate Of Turn| 127251
RPM| Revolutions| 127488
RSA| Rudder Sensor Angle| 127245
VHW| Water Speed and Heading| 127250, 128259
VLW| Dual Ground/Water Distance| 128275
VTG| Course Over Ground and Ground Speed| 129026
---|---|---
VWR| Relative (Apparent) Wind Speed and Angle| 130306
XTE| Cross Track Error, Measured| 129283
ZDA| Time & Date| 126992
VDM| AIS Message 1,2,3| 129038
VDM| AIS Message 4| 129793
VDM| AIS Message 5| 129794
VDM| AIS Message 9| 129798
VDM| AIS Message 14| 129802
VDM| AIS Message 18| 129039
VDM| AIS Message 19| 129040
VDM| AIS Message 21| 129041
VDM| AIS Message 24| 129809. 129810

Please note: some PGN sentences that are received require additional data before being sent.

NMEA 2000 to NMEA 0183 conversions

The following NMEA 2000 to NMEA 0183 conversions are currently supported.

NMEA 2000 PGN| HEX code| Function| Converted to NMEA 0183 Sentences
---|---|---|---
126992| 1F010| System Time| ZDA
127245| 1F10D| Rudder| RSA
127250| 1F112| Vessel Heading| HDG, VHW
127251| 1F113| Rate of Turn| ROT
127258| 1F11A| Magnetic Variation| HDG
128259| 1F503| Speed, Water referenced| VHW
128267| 1F50B| Water Depth| DBT, DPT
128275| 1F513| Distance Log| VLW
129025| 1F801| Position, Rapid Update| GLL
129026| 1F802| COG & SOG, Rapid Update| VTG
129029| 1F805| GNSS Position Data| GGA, GLL, GSA, RMC, ZDA
129033| 1F809| Time & Date| ZDA
129044| 1F814| Datum| DTM
129283| 1F903| Cross Track Error| APB, RMB, XTE
129284| 1F904| Navigation Data| RMB
129291| 1F90B| Set & Drift, Rapid Update| VDR
129539| 1FA03| GNSS DOPs| GSA
129540| 1FA04| GNSS Sats in View| GSV
130306| 1FD02| Wind Data| MWV
130310| 1FD06| Environmental Parameters| MDA, MTW
130311| 1FD07| Environmental Parameters| MDA
130312| 1FD08| Temperature| MDA, MTW
129038| 1F80E| AIS Message 1,2,3| VDM
129793| 1FB01| AIS Message 4| VDM
129794| 1FB02| AIS Message 5| VDM
129798| 1FB06| AIS Message 9| VDM
129039| 1F80F| AIS Message 18| VDM
129040| 1F810| AIS Message 19| VDM
129809| 1FB11| AIS Message 24 (Part A)| VDM
129810| 1FB12| AIS Message 24 (Part B)| VDM

Please note: some PGN sentences that are received require additional data before being sent.

WiFi Output

The A034 allows users to send and view data through WiFi on a PC, tablet, smartphone or other WiFi enabled device. Users can access marine network data including vessel course, speed, position, wind speed, direction, water depth, AIS etc. These can be viewedin the chart software.
The IEEE 802.11b/g wireless standard has two basic modes of operation; Ad-hoc mode (peer to peer) and station mode (also called infrastructure mode).
The A034 supports 3 modes.

• In Ad-hoc mode, wireless devices connect directly (peer to peer) without a router or access point. For example, your smartphone can connect directly to the A034 to receiver marine data. The A034 is set to Ad-hoc mode as a default setting, but can be easily setup to station mode or standby mode through the configuration tool. (See Configuration section)
• In Station mode, wireless devices communicate through an access point (AP) such as a router that serves as a bridge to other networks (such as the Internet or LAN). This allows your router to handle the data and traffic from your device. This data can then be picked up through your router anywhere on your local area network. Increasing the WiFi range. Similar to plugging the device directly into the router, but using wireless technology. In this way, the mobile devices receive both your marine data and other AP connections such as Internet.
• WiFi can also be disabled in Standby mode. This reduces power consumption and may be required when connecting 2 WiFi transmitting devices.

WiFi Ad-hoc mode connection

From a Phone, Tablet or PC: Once the A034 has powered up, scan for a WiFi network with an SSID of ‘QK-A034xxxx’ or similar.

Connect to ‘QK-A034xxxx’ with the default password: ‘88888888’.
In the chart software (or chart plotter), Set the protocol to ‘TCP’, IP address to ‘192.168.1.100’ and the port number to ‘2000’.

With the above settings, a wireless connection is established and the user will receive the data through the chart software.
Note: In Ad-hoc mode, the IP address should not be changed.
The SSID and password can be changed. The password must be 8 to 12 characters long.

The wireless connection and data flow can be checked with TCP/IP port monitoring software as shown.
(Image: TCP/IP Net Assistant shown as example)

For Station mode WiFi or to disable the WiFi function, see the Configuration section.

USB Output

The A034 is supplied with a type B USB connector and USB cable. The USB cable can be linked directly to a USB port on the PC.
The USB connector provides data input and output as standard (multiplexed information from all input instruments will be sent to this connection). The USB port is also used to configure the multiplexer and to update its firmware.

Will a driver be needed to connect via USB?

To enable the USB data connection of A034 to other devices, related hardware drivers may be needed dependent on your system requirements.
Mac:
No driver required.For Mac OS X, the A034 will be recognized and shown as a USB modem. The ID can be checked with the following steps:

1. Plug the A03 into a USB port and launch Terminal.app.
2. Type: less /dev/sub
3. The Mac system will return a list of USB devices. A034 will display as – “/dev/tty.usbmodemXYZ” where XYZ is a number. Nothing further needs to be done if it is listed.

Linux:
No driver required. When plugged into the computer, A034 will show up as a USB CDC device on /dev/ttyACM0.

Windows 7,8,10:
The drivers usually install automatically if your device is running an original Windows 10 version. A new COM port will automatically show up in the device manager once powered and connected via USB.
The A034 registers itself to the computer as a virtual serial com port.
If the driver does not install automatically, it can be found on the included CD and downloaded from
/www.quark-elec.com.

Checking the USB connection (Windows)

After the driver is installed (if needed), run the Device Manager and check the COM number (this is the number associated with the USB port you are using. The port number is the number that Windows assigns as an input device. These can be generated randomly by your computer). Your chart software may require your COM number in order to access the data.

The port number for the A034 can be found in Windows ‘Control Panel-> System->Device Manager’ under ‘Ports (COM & LPT)’. Find the A034 in the list for the USB variant. To change this number, double-click the A034 and select the ‘Port Settings’ tab. Click the ‘Advanced’ button and change the port number to the one required.

Checking the USB data flow:
If desired, the USB data can always be checked with the configuration tool. To do this, run the configuration tool, connect to A034 and then click ‘Open Port’, the input data
will be shown on the display field.
(See Configuration section)

Configuration (via USB)

The A034 Configuration tool software can be found on the free CD provided with your product or at https://www.quark-elec.com/downloads/configuration- tools/.
The A034 Windows configuration tool can be used to setup the port routing, sentence filtering, NMEA baud rates, and WiFi settings for the A034. It can also be used to monitor and send NMEA sentences through the USB port. The configuration tool must be used on a windows PC (or a Mac using BootCamp or other Windows simulating software) while the A034 is connected via USB cable. The software cannot access the A034 via WiFi.

The Configuration tool must not be opened while another program is using the A034. Please close down all applications using the A034 when using the configuration tool.

Once open, click ‘Connect’.
When A034 is connected to a computer (Windows system) and powered up, ‘A034 connected’ will be shown at the centre of the bottom and the software version shows at the bottom right. Press ‘Config’ once you have set the Baud rates for the inputs to save them to the A034.
Then press the ‘Disconnect’ button to safely remove the device from the PC.
Re-start the A034 to activate the new settings to the device.

Configuring Baud Rates

NMEA 0183 input baud rates can be setup from dropdown menu.
A034 can work with standard NMEA 0183 devices (4800bps), the high-speed NMEA 0183 devices (38400bps) and 9600bps can also be chosen.

Default NMEA baud rates are set to the following default settings:

• Seatalk:4800bps
• NMEA IN 1: 4800bps
• NMEA IN 2: 4800bps
• NMEA IN 3: 38400bps

These can be adjusted as required.

WiFi – Station mode

WiFi is set to Ad-hoc mode as standard. Station mode however, allows your router/access point to handle the data from your device. This data can then be picked up through your router anywhere on your local area network (Similar to plugging the device directly into the router, but using wireless technology). This allows your mobile device to still receive Internet while viewing your marine data.
To begin setup station mode the A034 should be connected via USB to a computer running Windows (Mac users can use BootCamp).

1. Connect A034 to computer via Micro USB B connection.

2. Run the Configuration software (having closed any other programs that would access the A034)

3. Click ‘Connect’ and check connection to the A034 at the bottom of Configuration tool.

4. Change working mode to ‘Station mode’

5. Enter your router’s SSID.

6. Enter the password for your network.

7. Enter the IP address assigned to the A034. This normally start with 192.168. The third group of digits depends on your outer’s configuration (commonly 1 or 0). The fourth group must be a unique number between 0 and 255) This number must not be used by any other equipment connected to your router.

8. Enter your router’s IP address in the Gateway section. This can usually be found under the router. Leave the other settings as they are.

9. Click ‘Config’ in the bottom right hand corner and wait 60 seconds. After 60 seconds Click
   ‘Disconnect’.

10. Repower the A034 and it will now attempt to connect to the router.

In your chart software, set the protocol as ‘TCP’, insert the IP address you assigned the A034and enter the Port number as ‘2000’.
You should now see your marine data in your chart software. If not, check your router’s IP address list and confirm the IP address that your router has assigned the A034. Occasionally, a router assigns a different IP address to a device than the one you chose to assign it during Configuration. If this is the case, copy the IP address from the router into your chart software.
If the IP address in the router’s IP address list matched the one inputted into the chart software, everything will work in station mode.

If you are not able to view your data in station mode, the likely cause is either the data has been input incorrectly, or the IP address is different in your chart software to that of your router.

WiFi – Standby/Disable

The WiFi module can be disabled by selecting ‘standby’ in the WiFi menu

Filtering

The A034 features filtering of NMEA 0183 sentences. Each input has a flexible filter that can be configured to pass or block specific sentences from entering the multiplexer.
NMEA sentences can be passed or blocked, specified by input. This frees up bandwidth, significantly reducing the possibility of data overflow and resulting loss of data.
Black listed input data isfiltered out and ignored by the A034 multiplexer, remaining desired data is then transmitted to the outputs. As default, all filter lists are empty so all messages are passed through the filters. Filters can be set through the Configuration so ftware.

Filtering allows the A034 the reduce the processing data load, by disabling these unneeded input sentences. GPS receivers for example often transmit an abundance of sentences every second and can fill much of the available bandwidth of an NMEA 0183 port at 4800bps. By filtering out any unnecessary data, bandwidth is saved for other devices’ data.
Most of Chart plotters also have their own sentence filter, however many PC/mobile phone-based applications do not. So, using the black list to filter un-necessary sentences is very helpful.

Filtering also removespotential conflict if two similar NMEA devices provide the same sentence type. Users may choose to enable this data on one input only (filtering), and to transmit to the outputs.

Configuring filters

Each input port’s black list can block up to 8 types of sentences. To filter out unwanted message types from a specific input, enter the details in the corresponding ‘Black List’ in the Configuration software.
Simply, remove the ‘$’ or ‘!’ from the 5-digit NMEA talker and sentence identifier and insert separated by commas. For example to block ‘!AIVDM’ and ‘$GPAAM’ enter ‘AIVDM, GPAAM’. If blacklisting SeaTalk data, use the corresponding NMEA message header. (see SeaTalk section for a full list of converted messages).

Routing data away from chosen outputs

As a default, all inputs’ data (excluding any filtered data) is routed to all outputs (NMEAx2, WiFi and USB). Data can be routed to limit the data flow to only certain output/s.
Simply un-tick the corresponding boxes in the Configuration software.

USB – Monitoring NMEA Messages
Connect A034 and then click ‘Open port’, all the sentences will be displayed in the application.

Upgrading firmware

The current firmware version can be verified through the configuration tool (When connected, the firmware version will showin the bottom of the Configuration software window).
To upgrade the firmware,

1. Power up A034 and then connect it to Windows computer via USB.
2. Run the Configuration software.
3. Ensure the configuration tool is connected to the A034, and then click Ctrl+F7.
4. A new Window will pop up with a drive named ‘STM32’ or similar. Copy the firmware into this drive and wait around 10 seconds to make sure the full file has been copied.
5. Close the window and the Configuration software.
6. Re-power the A034, then the new firmware will be active.

Specification

Limited Warranty and Notices

Quark-elec warrants this product to be free from defects in materials and manufacture for one year from the date of purchase. Quark-elec will, at its sole option, repair or replace any components that fail in normal use. Such repairs or replacement will be made at no charge to the customer for parts and labour. The customer is, however, responsible for any transportation costs incurred in returning the unit to Quark-Elec. This warranty does not cover failures due to abuse, misuse, accident or unauthorized alteration or repairs. A returns number must be given before any unit is sent back for repair.
The above does not affect the statutory rights of the consumer.

Disclaimer

This product is designed to aid navigation and should be used to augment normal navigational procedures and practices. It is the user’s responsibility to use this product prudently. Neither Quark-elec, nor their distributors or dealers accept responsibility or liability either to the products user or their estate for any accident, loss, injury or damage whatsoever arising out of the use or of liability to use this product.
Quark- products may be upgraded from time to time and future versions may therefore not correspond exactly with this manual. The manufacturer of this product disclaims any liability for consequences arising from omissions or inaccuracies in this manual and any other documentation provided with this product.

Document History

2.0

| ****

29/06/2020

| Updated to include upgrade features:

WiFi, 2-way USB and Routing added from firmware version A034_V1.10.200606_34B8 onwards.

Quark-elec(UK)
Unit 7, the Quadrant, Newark close Royston, UK, SG8 5HL
info@quark-elec.com 

FCC Statment

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
NOTE: 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, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications. 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 or more of the following
measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and 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.

Warning : changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment
Radiation exposure statementy this equipment compliance with FCC radiation exposure limits set forth for anuncontrolled environmenty this equipment should be installed and operated and operated with minimum distance 20cm between the radiator and your body

References

• Quark-elec - Quark-elec - NMEA 2000 & Marine electronics
• Quark-elec - NMEA 2000 & Marine electronics
• Configuration Tool - Quark-elec - NMEA 2000 & Marine electronics
• QK-AS03 NMEA Protocol Bridge

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