SailTimer Wind Instrument, SeaNav and Pebble SmartWatch

Some of SailTimer’s customers asked them if their bluetooth WindInstrument would work with Pocket Mariner’s  SeaNav Marine Navigation app and if the wind information could also be displayed on our free SeaNav Pebble watch companion app. So SailTimer asked us and now it does…
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windinstruments
The SailTimer WindInstrument is completely wireless, no power of data lines, so the install is far simpler than for other marine wind vanes.  It is the first masthead anemometer  with a digital compass built into the wind direction arrow so you get true wind direction even when docked or at anchor. It sends the wind data via bluetooth and is solar powered with 24 hour running. The WindInstrument if fully weather and waterproof (submersible) and has innovative wind cup blades design to maintain equal accuracy when sailing heeled over.

Continue reading “SailTimer Wind Instrument, SeaNav and Pebble SmartWatch”

ShipPlotter AIS sharing to Boat Beacon and Pocket Mariner

Its very easy to set up using the UDP/IP peer to peer sharing feature in ShipPlotter’s I/O settings. See screenshots below. Select enable in the UDP/IP peer-to-peer output, enter the IP address 54.204.25.151 and Remote Port number 5322 (see area circled in red).

ShipPlotterBoatBeacon

Click OK when finished. You will return to the main program window. Click on the “Start” button and you should then see your data on this web page:-

N.B. If you would like your own dedicated UDP port number and web view to share to please email us at support@pocketmariner.com

Dual Channel VHF AIS receiver for under $35 – Boat Beacon, AIS Share and RTL-SDR

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Got an Android phone? Want Screen Shot 2016-03-04 at 12.32.24a dual channel VHF AIS receiver for under $35? Now there is one thanks to our Boat Beacon app and the Android AIS Share app from ebcTech! All you need is  an RTL-SDR USB dongle,  an android OTG cable , the AIS Share app and our Boat Beacon app and you can see all the ships out to 30NM away (depending on height above sea level). No need for an internet connection, this is a  truly standalone full featured AIS receiver and with Boat Beacon’s new NOAA US Marine charts you have an AIS chart display with Collision detection and alarms too. It takes just a couple of minutes to set it up the first time and then after that it works out of the box. Here is what you need:-

The RTL-SDR USB stick is a software programmable radio receiver and because of its popularity for use in picking up TV and fm radio broadcasts it is incredibly cheap. As low as $10.  It is so powerful it can pick up and demodulate both AIS VHF frequencies at the same time. The one we recommend is the RTL-SDR.COM stick which is around $25  and has several major improvements over generic brands including use of the R820T2 tuner, improved component tolerances, a 1 PPM temperature compensated oscillator (TCXO), SMA F connector, aluminium shielded case with thermal pad for passive cooling and a telescopic aerial that you can extend to the correct length for AIS reception – 44.4 cm.

Next you need an Android OTG cable that lets you attach the RTL-SDR USB dongle to your Android device. They are typically less than $4 and we recommend the Y shapeScreen Shot 2016-03-04 at 12.36.44d ones which allow you to keep your device charging at the same time as using the RTL-SDR dongle.

Make sure you have our Boat Beacon downloaded and installed . Next download and install the AIS Share app from the Play Store. Set up of AIS Share is pretty straight forward  (setup video for those who like watching youtube here ):-

Installation / First start

Install the driver app from Google PlayTM store.
Get it on Google Play

https://play.google.com/store/apps/details?id=eu.ebctech.rtl_sdr_ais_driver
Start it one time. After that you can close the app ( RTL SDR AIS Driver )

Install AIS Share
Get it on Google Play

https://play.google.com/store/apps/details?id=eu.ebctech.ais_share

Start the AIS Share app go to the setting activity

AisShare Dongle Settings

Set the PPM setting
This is really important. For the RTL-SDR.COM USB stick that we recommend this will always be 0 as it comes with a stable pre-tuned oscillator. Google it
Set up the UDP Share

Start the driver with the pink floating action button.(please do not start / stop too fast , if you have clicked one time .. wait a second )
AisShare start

Then check if you are receiving messages.

Finally, launch Boat Beacon, go to settings, scroll down to Local AIS, select UDP, then tap on Local AIS Port and enter 10111. AIS Share will continue to run in the background as long as the USB dongle is attached. Watch the ships sail by 🙂

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There is also a short video showing the two apps in action together made by  ebcTech here https://www.youtube.com/watch?v=p68y68Lqqgg&feature=youtu.be

Independent trials of the Pocket Mariner AIS Dual channel receiver.

With the help of a ShipPlotter user in Finland we have been able to run side by side tests of our Pocket Mariner Dual Channel AIS receiver with a mainstream commercial brand AIS receiver costing over 3 times the price. We are very pleased with the results, with the Pocket Mariner Dual Channel AIS receiver achieving almost exactly the same coverage/range/data rate of the well known commercial brand. Here are some stats comparing our Pocket Mariner AIS receiver on port 7018 (blue) and the other on port 5378 (red ) and screenshots at the same time of the coverage from the same aerial in Helsinki.

Rate of data received (bits/s)

Screen Shot 2015-06-13 at 10.58.10

We also found that the coverage/range for both the commercial AIS receiver and ours was significantly improved using a relatively in-expensive AIS frequency (162MHz) tuned filter and pre-amp on the aerial feed. We used and would recommend the VHF Pre-amp from Spectrum Communications (formerly known as the Garex pre-amp). They start at around £15 for the pcb built one and around £50 for a boxed version. The ship ranges in the screenshots below is approximately 150km (100Miles).  The tropospheric conditions were good.

7018 Pocket Mariner Dual Channel AIS Receiver coverage snapshot

 

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5378 Commercial AIS Receiver coverage snapshot

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N.B. The buoys at the top of the screen (North) are over 350km away and most likely Synthetic Aids To Navigation being broadcast by a shore based station nearer our aerial.

If you are interested in having a Pocket Mariner Dual Channel AIS receiver please get in touch with us at . support@pocketmariner.com

 

Pocket Mariner live AIS Coverage

Our ship tracking network uses a global network of shore and ship-based radio stations, which receive signals from the AIS system that ships use to broadcast their positions as they travel. Our receiver stations share the ship positions with our cloud-based data server, which pushes them onwards and out to our apps and web services.

We are continuously working on increasing the coverage of our real-time AIS receiver station network. During the last three months we have added more than 100 new AIS stations across 5 continents bringing our live ship coverage to over 40,000 ships. We have supplied the AIS receiver for free for many of these sites. New volunteers are always welcome to join our AIS Network.

Here is a  list of the most recent stations we have set up  and a snapshot of our global coverage Q2 2017 (zoom in to see more detail)

America

Hudson Bay, NJ
Sakonnet River in Rhode Island
St Lawrence Seaway
British Columbia
Miami, Florida, US (2 new stations)
Antioch, CA.
Stockton,CA
St Bartholomew (Caribbean)
Dominian Republic.
Buenaventura, Colombia.
Lake Erie
Several stations in Uruguay
Several stations in Mexico

Europe

The whole of Norway
The whole of Denmark
The whole of Finland
Scicily, Italy
Turku, Finland
Maasbracht, Netherlands
Ijsselmeer, Nethrlands
Ust-Luga, Russia
St Petersburgh, Russia
Edinburgh, Scotland
Over 30 new stations in and around Sweden.
Eastbourne, UK
Scilly Isles, UK
Isle of Man, UK
Lowestoft, UK
Alicante, SP
Faro, Portugal

Africa

Port Harcourt, Nigeria.
Canary Islands
Dakar, Senegal

Middle East

Kuwait
Dubai

Australasia

Perth, Adelaide, Darwin, Australia
Nagoya, Osaka, Inland Seas, Japan
Singapore
Indonesia
Ho Chi Min City, Vitenam
Sihanoukville, Cambodia.

If you are interested in adding coverage for your area, please read our Cover Your Area information – we can often provide the equipment free of charge.