easyTRX - AIS Class B Transceiver - Pinpoint Electronics Ltd

Weatherdock carefully designed their Class B AIS transceiver, easyTRX3, to ensure the integration is ‘easy’. Integrating a splitter, GPS and NMEA 2000 adapter takes the hassle away from the installer ensuring no other components are required for it to operate successfully. The WiFi feature, TV aerial module, built in SD-Card and LAN are also very useful features making the easyTRX brand one of the most popular Class Bs.

easyTRX3 Brochure

easyTRX3_Connection Diagram

Google Play Store (Android)

Apple App Store (iOS)

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easyTRX3 – The newest Weatherdock Class B model. 5 watts of transmission power, faster transfer rates, SOTDMA technology and contemporary connectivity in a rigid, waterproof housing.

easyTRX2 – Receives Class A and Class B AIS telegrams, transmits AIS Class B telegrams using CSTDMA technology, integrated FM splitter, integrated GPS antenna, integrated N2K adapter for NMEA2000 data stream.

Models:

IS – integrated splitter, IGPS – integrated GPS, N2K – NMEA2000 adapter, WIFI – WiFi Module, LAN – Local Area Network module, IDVBT – integrated TV aerial antenna splitter

SOTDMA v. CSTDMA

The AIS data telegrams can be transmitted via various methods. The CSTDMA method (Carrier Sense Time Division Multiple Access) has been used for pleasure boating (Class B). The SOTDMA technology (Self-Organized Time Division Multiple Access) was previously reserved for commercial shipping (Class A), but is now also approved for Class B level.

Please see the table in the Gallery Tab.

AIS IEC 62287-2:2017

Environment IEC 60945:2002

GPS IEC 61108-2003, EN 301843-1:2004

Product Safety EN 60950-1 ITU-R M.1371-5

Approved by BSH, USCG

Advantages

5 Watt radiated power

Higher transmission rates (subject to speed)

Rigid and waterproof housing

Configuration with USB power supply possible

Internal storage; read-out with USB power supply possible

Integrated VHF splitter

Integrated GPS antenna and receiver

CPA-Alarm & Anchor-Alarm

Features

easyTRX3-Manager App - With the easyTRX3-Manager app, all settings of the easyTRX3 can be easily and conveniently made via a smartphone or tablet. Definition of static data (MMSI, name, call sign and type of ship) Configuration of the interfaces (USB, NMEA0183, NMEA2000) Anchor and CPA alarm can be switched on and off

MTM - Maritime Text Messenger A great feature of the SOTDMA technology is the ability to send text messages via AIS, as with a Class A device. We call this method MTM, Maritime Text Messenger. There is a dedicated app which connects the easyTRX3 allowing one to send and received via a mobile device. Devices without WiFi can be connected via USB via PC / MAC. The message is transmitted via the AIS message 6 or 26 and can be addressed to a specific ship, this acknowledges receipt automatically. However, the prerequisite is that the opposite is also a SOTDMA device. Only a transceiver with SOTDMA can then also process these messages. A message can contain 48 symbols. Within a minute max. 61 symbols are sent. Example: “Arrival Marina Portofino, ETA 1800” Furthermore, a SOTDMA can transmit the AIS messages 8 and 26 to all within reach. So start a broadcast. Here the message can contain 54 symbols. Within a minute, 72 symbols are possible. Example: “Marina Portofino is closed”. This could even be sent by the port itself.

Techincal

1 channel VHF transponder

2 channel VHF receiver for 161.975 MHz and 162.025 MHz AIS frequencies

Multi-channel GPS receiver

Channel sensitivity: ≤ -112 dBm

GPS antenna connector

Installation below deck

Operating temperature: -10 °C – + 55 °C

NMEA telegram type: VDM

Transmitting power: 5 watts / 1 watt

Dimensions (L/W/H): 180mm x 120mm x 50mm

Weight: approx. 700 grams