See and be seen even better!easyTRX3 Class B AIS transceiver with SOTDMA technology.With 5 watts of transmitting power, faster transmission rate of AIS protocols and SOTDMA technology, the new AIS Class B generation - easyTRX3 from the German manufacturer WEATHERDOCK improves your navigation and safety on board.The German sailing magazine "Yacht" judges in its AIS transponder comparison in issue 17/2023: "The easyTRX3 from WEATHERDOCK, which is available in a wide range of equipment variants to meet all requirements and whose range of functions can even be expanded at a later date, is probably the most versatile system among the black box solutions according to the SO(TDMA) standard".The robust, waterproof housing of the easyTRX3 offers one AIS transmitter and two AIS receivers. This ensures that both AIS frequencies are permanently transmitted and received in parallel.SOTDMA technology means that the easyTRX3 organises the free time slots in the AIS transmission procedure itself and reserves and keeps free the same space for the next transmission interval with the transmission.The unit can be conveniently configured already at home. The data connection to the PC via USB ensures the power supply at the same time. In this way, the internal memory can also be controlled and read out, in which all AIS sailing data can be stored - similar to a black box.With the easyTRX3 Manager app, all easyTRX3 settings can be made easily and conveniently using a smartphone or tablet.defining the static data (MMSI, name, call sign and type of vessel)Configuration of the interfaces (USB, NMEA0183, NMEA2000)Anchor and CPA alarm switched on and offIn addition to the basic version of the easyTRX3, there are versions with WiFi, LAN, FM, DAB+ and DVB-T2. Thanks to the modular design, additional functions can also be retrofitted to existing models at a later date.FeaturesAIS Class B SOTDMA time slot method5 watts radiated transmit powerFaster transmission intervals (depending on boat speed)Integrated antenna splitterIntegrated GPS antennaNMEA2000, NMEA0183 and USB port connectivityCPA alarm & anchor alarmInternal memory recording of trip data (black box)Configuration of the unit with USB power supply possibleReadout of the internal data memory possible with USB power supplyHandheld, robust and waterproof housingConforms to the new international standard IEC62287-2Technical data1 channel VHF transmitter2 channel VHF receiver (AIS frequencies: 161.975 MHz and 162.025 MHz)72 channel GNSS/GPS receiverchannel sensitivity: ≤ -112 dBmProtection class IP67 (dust and waterproof against temporary submersion)For installation below deckOperating temperature: -10 °C - + 55 °CGPS antenna connectorNMEA2000 Micro-C connectorNMEA output message: VDMTransmitting power: 5 wattsDimensions (L/W/H): 190 x 135 x 60 mmWeight: Approx. 700gApprovalsBSHIEC62287-2 Scope of deliveryAIS Class B easyTRX3 (basic version or plus options)Connection cable 18-pin (approx. 200 cm)Connection cable from easyTRX3 to VHF radio (approx. 100 cm)USB connection cable (approx. 180 cm)Short manualUser manual and software for programming for Windows PC and Apple Mac on internal memoryWiFi antenna (with WiFi option)DVB-T2 cable set (with DVB-T2 option)DAB+In the optional product version with DVB-T2 and FM radio, a DAB+ module is also installed. With this DAB+ module you are able to connect the antenna cable of a DAB+ receiver with F-connector to the easyTRX3. The module itself is a kind of antenna that is able to slightly amplify the incoming DAB+ signals before they are transmitted to the connected DAB+ receiver via the F-connector. However, the module does not include an antenna splitter for DAB+. The DAB+ signals are not received with the FM mast antenna and forwarded to the easyTRX3.The integrated GPS antenna is sufficiently powerful for most (GRP or wooden) yachts. However, depending on the installation location (especially on steel boats), an external GPS antenna (Article-No. 3920-029) may be required as a supplement. You will find this further down on this page under "Accessories".