AIS receiver Page
Receiver devices and accessories equipment to track ships for marine surveillance.
AIS marine radar / navigation systems present the bearing and distance of nearby marine vessels in a radar-like display format, as well as unique identification, position, course, and speed, displayed on a computer screen, and even information about their destination, estimated time of arrival and the dimensions of each vessel.
Range is basically limited by line of sight, the relatively low power of ship transponders and the height and gain of your antenna. Typical range at sea level with a basic antenna is about 12Nm, or with a better antenna at an elevated antenna position is about 20-50Nm.
An AIS receiver requires that your PC or laptop will have loaded suitable plotting software that can understand AIS messages on a serial port, compatible with Windows XP/7/8.
To use an AIS receiver on a boat, without the need for internet connection, you will also need a VHF antenna (or a feed from an existing VHF antenna via a splitter), and a PC compatible GPS receiver (see Antenna & other Accessories page and Prices & Ordering page) or an adaptor from an existing boat GPS. Independent mapping software on your computer is still needed.
WEGMATT LLC, USA dAISy AIS receiver
dAISY AIS receiver with AIS whip (or telescopic) antenna: Part No dAISy.1kit
All you need to start tracking ships are a PC, Mac or Linux computer, and a clear view of the sea.
dAISy works with OpenCPN (free site - see https://opencpn.org/OpenCPN/info/about.html), Ship Plotter and any other software that accepts serial data input.
dAISy is also well suited for reporting local ship traffic to services like MarineTraffic and AISHub.
With it's small size, low cost and very low power consumption, dAISy is the perfect AIS device for DIY projects built around Raspberry Pi and other single-board computers. dAISy was designed around a modern single chip radio IC. This architecture is instrumental for the low price, small form factor and low power consumption, and can result in longer acquisition time, lower sensitivity and less range than commercial AIS receivers, but with a suitable antenna dAISy is more than adequate to monitor local ship traffic.
Specification· Single channel receiver
Receiving on channel A (161.975 MHz) and B (162.025 MHz)
Alternates between both channels through channel hopping (<10ms)
· Sensitivity down to -100 dBm· Very low power consumption, less than 100mW in receive mode (<20mA at 5V)
38400 baud serial over USB·
Does NOT include
0183 output - for NMEA requirement see
Part No dAISy+NMEAbelow.
· Small size: 63 x 44 x 23 mm· Sturdy aluminum enclosure
BNC connector for 50 Ohm VHF antenna supplied
· Mini-USB connector for data and power (USB cable included)
The Boat Beacon app on Android now officially supports dAISy - see http://pocketmariner.com/mobile-apps/boatbeacon/
For full dAISy manual see http://www.wegmatt.com/files/dAISy%20AIS%20Receiver%20Manual.pdf
OpenCPN, is a free, open source chart plotter and navigation software, can be used with devices like dAISy to track ships on a map. Any software running on a PC, Mac or small Linux computer that accepts AIS data from a serial input will work with dAISy. For location on map, computer will need input from GPS. (GPS dongles available from http://www.aircrafttrackingavionics.com.au ).
dAISy is professionally assembled by the manufacturer in Seattle, WA, USA, with a 12 month warranty .
dAISy AIS Receiver with NMEA 0183 / RS-422 Adapter option
(without antenna): Part No dAISy+NMEA
(without antenna): Part No dAISy+NMEA
With this adapter option fitted, the dAISy AIS Receiver can directly talk to chart plotters and other marine electronics. In addition, the integrated DC/DC converter allows power to it from your boat's 12-24V power system, removing the need for a USB power source.
New model to be released
New model to be released
NMEA 0183 / RS-422 output at 5V
NMEA high speed (38400 baud)
NMEA low speed (4800 baud) supported with dAISy firmware 4.07 or higher
Powered from 9-24V or through USB
Drawing approx. 25mA additional current
This adapter was successfully tested with chart plotters (Garmin GpsMap 750s, Standard Horizon CP180i, Samyung N700), NMEA routers (vyacht) and RS-422 routers (Transas 4 port RS-422 to Ethernet). It is expected to also work with other devices that support NMEA 0183 or RS-422 input.
Can use as generic RS-422 adapter
On a technical level, this adapter translates one 3.3V-5V serial input to a 5V differential signal. This means, that it can also be used with your own DIY project in need of RS-422 output.
The differential output is driven by a Texas Instruments UA9638 transceiver. External power is regulated by a RECOM ROF-78E5.0-0.5 9-36V, 500mA DC/DC converter. When using external power, 4.7V will be present which can be used to power your project with up to 450mA.
Rear view of dAISy receiver with NMEA adapter option
Connection schematic and
Connection schematic and receiver
AIS receivers can be used for shipspotting on the coast or as a navigation/surveillance aid on board a boat. The Digital Yacht AIS100-USB provides an extremely compact, portable, simple to instal instrument. This value priced AIS receiver is a most cost effective solution for getting AIS on your PC or laptop or tablet.
No need for separate external power supply.
Powered from USB without serial adaptors. Product kit includes USB cable.
Featuring a dual channel receiver, there is no compromise on performance and is capable of listening on both Channel A(161.975Mhz) or Channel B(162.025Mhz). It features the same dual channel receiver as more expensive models, but without the NMEA 0183 Output and multiplexer.
Receives both class A & class B signals.
For PC based navigation systems with USB drivers for PC, MAC, OSX and all LINUX Kernels since V2.4.20 .
Works with Android using an OTG cable on devices like Nexus 7. Digital Yacht also have an app called AISView.
Simple plug and play USB connection to a PC. Uses standard drivers built-in to Windows XP/Vista/7/8/8.1 and is automatically mapped to an available “virtual” com port, which your PC software can read.
The AIS100-USB is OK on a Windows tablet and should be OK
on most of the latest Android tablets but worth checking that the Android tablet
supports USB OTG.
Suitable for tablets with win 8/8.1 and with USB
power all fine .
.An iPad will not work with it.
OpenCPN software at https://opencpn.org/OpenCPN/info/about.html is free, shows A.I.S. data and also has a chart plotting facility.
The Digital Yacht AIS100-USB includes SmarterTrack Lite AIS viewing software on the CD supplied .
To use the Digital Yacht AIS100-USB receiver on a boat, without the need for internet connection, a PC compatible USB/GPS receiver is needed for location. We can also supply this – see our Antenna & other Accessories page and Prices & Ordering page.
Antenna input - BNC socket. A VHF antenna is needed, but is not included.
A VHF signal can be provided from an existing VHF antenna using a splitter.
A VHF antenna either a simple, compact whip antenna with BNC plug, or a wire antenna (also needs a BNC/SMA adapter) or a more powerful magnetic base antenna (also needs a BNC/SMA adapter) for the AIS frequency range can be bought from us - see Antenna & other Accessories Page or Prices/ordering page for options & prices.
Digital Yacht products come with a comprehensive TWO year return to base manufacturer's warranty (on registration).
Kinetic Avionics SBS-3 receiver (includes AIS marine) - see ADS-B aircraft receiver info page
Compact marine navigation Mariner's Pack CMP-4 Compact, complete economical, navigation/package for marine surveillance to use with your computer
Complete kit includes:
1) Wegmatt dAISy.1 AIS receiver,
2) GPS USB dongle (GPSUSB-1) - plugs direct in to your computer for location data,
3) Small VHF AIS tuned whip (or telescopic) antenna, obviating the need for having a splitter from another VHF antenna with its associated extra cabling.
Special package price, for use with your computer and plotting software, as a compact, portable complete marine surveillance/navigation device.
Some very useful 'Frequently Asked Questions' provided by Michael Barrett
I want to watch ships using my laptop from land,
what do I need?
.How far can I see ships?
Possible Fault remedies found by Mike,
1, Only one USB port on some Toshiba units is a high power supply. If the receiver is not receiving, you should changes to this port.
2, Plug both GPS and AIS receiver into the same
ports every time .
3, The centre box on the Opencpn tool bar is to allow the AIS to be received. You must check this box - X and red icon is replaced by no X and Green and yellow icons.
for the Safety of Life at Sea (SOLAS)
requires AIS to be fitted aboard all
international voyaging ships with
gross tonnage of 300
or more, and all passenger ships regardless of
size. It is estimated that hundreds of thousands
of vessels now carry AIS equipment.
* Export Prices: for New Zealand, and countries outside Australia, contact us for special (GST exempt) prices, including postage.
( Please check that ADS-B or AIS receivers are allowed to be imported in to your country, and if there are any duties or extra charges applicable.)
* Stock of receivers & antenna accessories carried in Melbourne for prompt delivery - we aim to despatch within 1 working day.
* Our prices include GST for Australia only - (GST free outside Australia) and free Postage to anywhere in Australia for orders over $60 . Can send by Express Post in Australia for $2.50 extra, up to 3KG.
* No surcharge for Visa or Master Card
* 12 months warranty- backed by us and the manufacturers
Aircraft Tracking Avionics email: email@example.com
A.T.A.: ABN: 56006167399 (established 1983)
( Enquiries from interested resellers welcome )