AIS Class B NAIS-500 with NSPL-500 splitter and GPS-500 antenna

The NAIS-500 kit is a complete solution that includes the following:

The NAIS-500 Class B AIS transceiver. The VHF/AIS/FM antenna splitter NSPL-500. The GPS-500 antenna.

The NAIS-500 system is a Class B AIS transponder designed to enhance safety at sea. It allows your vessel to broadcast its position, speed, and heading to other AIS-equipped boats while receiving their data, actively contributing to collision avoidance.

The NAIS-500 transponder has compact dimensions of 152 x 98 x 52 mm (length x width x height) and weighs 260 g, making it easy to install in various spaces.

The NAIS-500 operates on a DC power supply with a voltage range of 9.6 V to 31.2 V, making it compatible with most 12 V or 24 V marine electrical systems.

Yes, the NAIS-500 transponder is IP67 certified, ensuring water and dust resistance, making it suitable for marine environments.

Yes, the NAIS-500 integrates a 50-channel GPS receiver compliant with IEC 61108-1. The kit also includes an external GPS-500 antenna to ensure optimal GPS signal reception.

The NAIS-500 is equipped with multiple data interfaces for versatile connectivity with other navigation equipment:

A USB port (type mini-B). Two bidirectional NMEA 0183 ports (one at 38,400 baud and one at 4,800 baud). A NMEA 2000 connection (LEN=1).

Yes, the NAIS-500 can be connected to a chartplotter via its NMEA 0183 ports (the high-speed port at 38,400 baud is specifically intended for chartplotters). It can also be connected to a PC or Mac via its USB port for configuration and diagnostics.

The NAIS-500 uses an SO-239 type connector for the VHF antenna connection.

The average power consumption of the NAIS-500 is 180 mA at 12 V DC. Peak current can reach 2 A at 12 V DC.

The NAIS-500 transponder is equipped with four LED indicators to signal its operating status:

PWR (Green): Indicates the unit is powered and operating normally. ERR (Red): Lights up in case of an error or invalid MMSI. Rx (Flashing Green): Indicates AIS data reception. Tx (Orange or Flashing Green): Indicates silent mode (solid orange), GPS fix acquisition (flashing orange), or AIS data transmission (flashing green).

A red 'ERR' indicator on the NAIS-500 can indicate several conditions:

The MMSI is not correctly programmed.The VHF antenna is faulty or improperly connected.No GPS fix can be obtained (check the connection and installation of the external GPS antenna).The power supply is outside the allowed range (9.6 V to 31.2 V).

The transmission output power of the NAIS-500 is 33 dBm ± 1.5 dB, which corresponds to a power of 2 watts, typical for a Class B AIS transponder.

The NAIS-500 is designed to operate reliably within an ambient temperature range of -15°C to +55°C.

The external GPS antenna (GPS-500) must be connected to the SMA-type GPS connector located on the AIS transponder. Ensure the cable is properly routed and the connection is secure to guarantee optimal signal reception.

Yes, the NAIS-500 is fully NMEA 2000 compatible and features a standard NMEA 2000 connection with a Load Equivalency Number (LEN) of 1, allowing easy integration into an existing NMEA 2000 network.

The NAIS-500 can be set to silent mode via a connection to an external switch. The included accessory cable has dedicated wires (light green and orange) for this connection. When silent mode is activated, the 'Tx' indicator lights up solid orange, and the device stops transmitting AIS data.

The NAIS-500 VHF AIS transponder operates on frequencies ranging from 156.025 MHz to 162.025 MHz, in 25 kHz steps, covering international marine AIS channels.

Yes, the NAIS-500 has two bidirectional NMEA 0183 ports: a high-speed port operating at 38,400 baud, primarily intended for chartplotters, and a low-speed port operating at 4,800 baud, intended for other NMEA 0183-compatible devices.

Yes, it is important to allow adequate space around the AIS transponder to facilitate cable routing and ensure proper ventilation. Additionally, the ambient temperature around the device must be maintained between -15°C and +55°C to ensure optimal operation and prevent overheating.