9 left in stock
SVB price: €1,033.57
You save: 6%
Excl. VAT, excl. shipping costs.
This is a NET-price excluding German VAT. Shipments to countries outside of the EU may be subject to import duties and taxes.
€1,033.57 This is a NET-price excluding German VAT. Shipments to countries outside of the EU may be subject to import duties and taxes.
Available variants:
Item no.
Model no.
Communication type
Integrated VHF splitter
SD card slot
SOTDMA capability
Class B
ARC approved
Yes, mandatory

SVB recommends the following for this item

Product details

The AIS Class B easyTRX3 transmitter/receiver by Weatherdock boasts the latest innovations: 5 W broadcast power, faster transfer rate of AIS protocols and SOTDMA technology. The AIS transceiver features a rugged, compact and waterproof housing and provides permanent parallel transmission and reception of both AIS frequencies. The device has an integrated splitter and integrated GPS and WiFi antenna.
SOTDMA technology improves AIS transmission by organising the free time slots in the AIS transmission process and reserving the same space for the next transmission interval.
Connect to a wide range of devices with NMEA2000, 2x NMEA0183 and USB connectivity. The WiFi function would also allow wireless transmission. AIS data is displayed in real time on a compatible display. The external 72-channel GNSS/GPS receiver provides optimal reception of position data.

Please note that depending on the installation location of the AIS transponer, the integrated GPS receiver may not receive a sufficient GPS signal. In this case, it is recommended to use the separately available GPS antenna.

The USB connection to a computer provides the power supply, allowing the device to be easily configured at home. The same applies to the internal SD memory, which can also be controlled and accessed via computer without an external power source.
All AIS travel data, similar to a black box, can be stored on the internal storage device for data backup. With a USB connection to a PC/MAC or laptop, the memory can be accessed or the easyTRX3 can be programmed with relevant ship data using the included software, without having to connect the easyTRX3 to its own power supply.

All features at a glance
  • AIS Class B SOTDMA time slot system
  • 5 W radiated transmission power
  • Faster transmission intervals (depending on speed)
  • Integrated antenna splitter
  • Integrated GPS antenna
  • NMEA2000, NMEA0183, WiFi and USB port connectivity
  • Internal SD memory card for logging functionality
  • Device configuration with USB power supply
  • Access internal data memory with USB power supply
  • Robust and waterproof housing
  • Meets new international standard IEC62287-2

Technical Data
  • 1 channel FM transponder
  • 2 channel VHF receiver (AIS frequencies: 161.975 MHz and 162.025 MHz)
  • 72-channel GNSS / GPS receiver
  • Channel sensitivity: -112 dBm
  • Protection class IP67 (dustproof and waterproof against temporary submersion)
  • GPS antenna connector
  • Installation below deck
  • Operating temperature: -10° C to + 55° C
  • NMEA2000 Micro-C connection
  • NMEA telegram type: VDM
  • Transmitting power: 5 W
  • Operating voltage: 9 - 32V
  • Dimensions LxWxH: 190 x 135 x 60 mm
  • Weight: approx. 700 g

  • BSH
  • IEC62287-2

Included in delivery
  • easy TRX3 transponder
  • easy TRX3 connection cable 18-pin (approx. 200cm)
  • connection cable easy TRX3 to VHF radios (approx. 100cm)
  • USB connection cable (approx. 180cm)
  • Quick start guide
    User manual on internal memory
    software for programming Windows PC and Apple Mac on internal memory
  • WiFi antenna (only for easyTRX3 with WiFi option)
  • DVB-T2 cable set (only for easyTRX3 with DVB-T2 option)


en-flag Manual
PDF, 5,89 MB
de-flag Datasheet
PDF, 2,19 MB
de-flag Manual
PDF, 5,91 MB

What other SVB customers have to say

100% real reviews

8 customer reviews

4.6 (out of 8 ratings)
3 Stars
2 Stars
1 Stars
100% recommend SVB
  • Advantages
  • Connection options (1)
  • Range of functions (1)
  • Delivery contents (1)
  • Price/performance ratio (1)
  • Reception (1)
  • Configuration (1)
Gerd M.
by Gerd M. Flag of Germany 4/2/2023 Verified purchase
Great product...
good for my purposes. I'm extremely satisfied..
Connection no problems, configuration also well explained.
I hope everything stays that way.
  • Advantages
  • Connection options
  • Range of functions
  • Delivery contents
  • Price/performance ratio
  • Reception
  • Configuration
Paul P.
by Paul P. Flag of Germany 3/17/2022 Verified purchase
Einfache Bedienung
Does what it should. Simple programming.
Fabian M.
by Fabian M. Flag of Germany 8/15/2020 Verified purchase
Guter AIS Empfänger, Service gut, beiliegende Dokumentation katrastophal.
The product is assessed after about one summer of use. The product is therefore of high quality. The accompanying documentation is detailed, but can be misleading or wrong. An erratum table for the pin assignment of the 18-core supply cable is included. This is followed. However, in the box that was sent to me, the cable is included for which the erratum table does not have to be followed. However, this is not indicated anywhere. This is very annoying, because nothing works at first and the very friendly support team tells me that the entire cabling has to be changed and the erratum table has to be ignored. Even a previous internet search did not save me from this problem, as there is no information on the manufacturer's website. Unfortunately, an MMSI number is already stored in the system when it is started up, which has to be laboriously reset, which is only possible after a one-hour phone call with support after software updates for the AIS device (firmware update) and the laptop. Overall, the installation is no fun and needs to be improved. After that, however, the device performs reliably. The anchor alarm works fine. The CPA alarm is reliable. The device runs very stable and the transfer of the data in NMEA 2000 and the GPS data via NMEA 0183 succeeds without any problems. The built-in GPS receiver is missing, but the free GPS antenna that comes with the device reliably fixes the problem. The integrated splitter works well. The WiFi reception is stable, the mobile phone app (IOS) is okay.
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Question about delivery contents

User image of Gaute R.
Gaute R. asked
on Mar 29, 2022
Flag of English Its not easy to get if there is a external gps antenna including in this ais. How long. Cable is it included ?????? On picture you show with antenna and mounting leg is it standard ????? Sorry but incredibly bad description!!
SVB expert image
Weatherdock S. answered
on Mar 30, 2022
The cable lenght of the GPS antenna is 6m, the mounting socket is for flat-surface mounting and is also included.

Technical question

User image of P D.
P D. asked
on Jun 8, 2020
Flag of English Is the TRX3 (WiFi) compatible with the Navionics boating app on iOS, to get all data such as GPS and AIS overlays? Also when will the new stock be available as it has been pending for a while?
User image of Cory V.
Cory V. answered
on Jun 25, 2020
Dear customer, yes it is compatible. We should be receiving new stock in 1-2 weeks. Thanks.