Em-Trak B951 Installation And Operation Manual

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AIS Class B transceiver

Installation and operation manual

Table of Contents

Other manuals for Em-Trak B951

User Manual56 pages

Quick Start Guide2 pages

Questions and Answers:

E
Emma FloresAug 20, 2025
What to do if the red error LED indicator is flashing on my Em-Trak Transceiver?
- M
  Michael EdwardsAug 21, 2025
  If the red error LED is flashing, there may be a problem with the VHF antenna system, which can be confirmed using proAIS2. Check for a faulty VHF antenna, cable, or connectors, and ensure they are properly connected. Confirm the suitability of the VHF antenna (for AIS only, use antennas covering 162MHz; for splitter variants, use antennas covering to 159MHz). Also, check the VHF antenna location, ensuring it isn't mounted near other transmitting antennas, sources of interference, metal structures, or other obstructions.
H
Henry GarciaAug 22, 2025
Why is the red 'error' LED indicator illuminated on my Em-Trak Transceiver?
- M
  Mitchell CamachoAug 22, 2025
  If the red 'error' LED is illuminated, ensure that the unit is configured with a valid MMSI number, which can be checked in the Configuration tab of proAIS2. Also, verify that the GPS antenna has a stable position fix using the GPS Status tab in proAIS2 and confirm that the power supply is within 12 - 24V using the Diagnostics tab of proAIS2.
A
Amanda GarciaAug 25, 2025
What to do if no data is being received by the chart plotter from my Em-Trak Transceiver?
- K
  ksmithAug 25, 2025
  If no data is being received by the chart plotter, check that the signal wires are connected correctly and that the baud rate matches on both the transceiver and the chart plotter. Also, confirm that other vessels are within radio range and that they are displayed on the Other Vessels tab of proAIS2.
K
Kurt ParkerAug 26, 2025
How to fix amber LED indicator flashing continuously on Em-Trak Transceiver?
- M
  Melissa SawyerAug 26, 2025
  The amber LED indicator flashes while the transceiver searches for a position fix. If it takes longer than a minute, check the performance of the GPS antenna by using the GPS Status tab of proAIS2.
K
Kenneth Miller PhDAug 27, 2025
How to troubleshoot no LED indicators illuminated on Em-Trak B951 Transceiver?
- C
  Christopher RamirezAug 27, 2025
  If no LED indicators are illuminated, check that the power supply is connected correctly and that the power supply is a 12V or 24V supply.
K
Kevin ScottAug 29, 2025
What to do if I can't establish a connection using WiFi or Bluetooth on my Em-Trak B951?
- J
  Jason LeeAug 29, 2025
  If you can't establish a connection using WiFi or Bluetooth, verify that the transceiver is powered by 12 - 24V. Check the configuration parameters using proAIS2. Ensure that there are no obstructions between the transceiver and mobile device and that there are no sources of interference nearby.
A
alvinherreraAug 31, 2025
Why is the red 'error' indicator illuminated on my Em-Trak Transceiver?
- C
  Carol WilliamsonAug 31, 2025
  If the red 'error' indicator is illuminated on your Em-Trak Transceiver, first check that the unit is programmed with a valid MMSI number using the Configuration tab in proAIS2. Next, ensure that the GNSS antenna has a stable position fix, which can be confirmed in the GNSS Status tab of proAIS2. Finally, verify that the power supply is within 12 - 24V using the Diagnostics tab of proAIS2.
D
Dr. William GrimesSep 2, 2025
What to do if the red error indicator is flashing on my Em-Trak B951?
- M
  Marisa MooreSep 2, 2025
  If the red error indicator is flashing on your Em-Trak Transceiver, it may indicate a problem with the VHF antenna system. You can confirm this using proAIS2. If the 'High VSWR' alarm is active, check for a faulty VHF antenna, cable, or connectors, a poor connection at the VHF antenna/cable/connectors, the suitability of the VHF antenna (antennas tuned to 162MHz are recommended for AIS only, while antennas tuned to 159MHz are recommended for splitter variants), and the VHF antenna location (ensure it isn't mounted near other transmitting antennas, sources of interference, metal structures, or other obstructions).
D
Denise TownsendSep 3, 2025
How to fix WiFi or Bluetooth connection issues on my Em-Trak Transceiver?
- R
  Richard WillisSep 3, 2025
  If you can't establish a connection using WiFi or Bluetooth with your Em-Trak Transceiver, check that the transceiver is powered by 12 - 24V. Also, check the configuration parameters using proAIS2. Ensure there are no obstructions between the transceiver and your mobile device and that there are no sources of interference nearby.
M
meganwilliamsSep 5, 2025
Why is the amber indicator flashing continuously on my Em-Trak Transceiver?
- L
  Lisa DiazSep 5, 2025
  The amber indicator flashes on your Em-Trak Transceiver while the transceiver searches for a position fix. If it takes longer than a minute, you can check the performance of the GNSS antenna by using the GNSS Status tab of proAIS2.

Em-Trak B951 Specifications

General

Type	AIS Transceiver
AIS Transceiver Class	Class B
Channel Bandwidth	25 kHz
Channels	2
Power Output	2W
Modulation	GMSK
GPS	Integrated
NMEA 0183	Yes
NMEA 2000	Yes
Waterproof Rating	IPx7
Frequency	162.025 MHz
Supply Voltage	9-32 V DC
Power Supply	DC
Interface	NMEA0183, NMEA2000
Operating Temperature	-15°C to +55°C
Certifications	CE, FCC
Waterproof	Yes

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