De interés para usuarios de dispositivos AIS-MOB

[ponzoa]

Yo entiendo un par de cosas - el documento indica que deben contemplar un plazo donde ambos conviven.;

establish a common time limit for tolerating the use of AIS 1 and AIS 2 by AMRD that are not in
accordance with Recommendation ITU-R M.2135 [1];

No veo si está indicado ese límite de tiempo.

Este siguiente párafo me hace entender que la norma aplica al sector "professional" y que no están obligados a monitorizar Grupo B, sólo grupo A;


A1.2 AMRD GROUP B
Examples of applications
Several AMRD applications exist, which are not accepted by the IMO as AMRD Group A. Typical examples
are MOB (not using VHF DSC (Class M)), personal tracking in windfarms, helicopter transit, offshore platform,
fishnet marker or markers for divers, yacht races. Other applications are conceivable. Devices not in
accordance with MOB using VHF DSC (Class M) are categorised as AMRD Group B because of a missing
DSC alerting function. These devices use AIS technology, however, channel 2006 (160.900 MHz) is currently
available and will require special receiving equipment.
WRC-19 decided that AMRD Group B must be operated on VHF channel 2006 (160.900 MHz). Using this
frequency separates AMRD Group B from other AIS applications to avoid interference.

Monitoring VHF channel 2006 (160.900 MHz)
This channel will not be monitored by general shipping or coast stations as part of GMDSS. This channel is
designated for AMRD Group B applications. This channel may be monitored by e.g. fishermen, divers,
operators of windfarms, etc. Suitable monitoring equipment for channel 2006 requires development.

Tambien dice que se puede usar esa frecuencia siempre que la potencia de transmisión no supera 100mW y la antena sea inferior a 1m sobre el agua.

In CEPT countries, AMRD Group B must use the frequency 160.900 MHz (Channel 2006) and are limited to a
transmitter e.i.r.p. of 100 mW and an antenna height not exceeding 1 m above the surface of the sea

Pero tambien dice que estas frecuencias no se podrán usar a partir del 31 dic 24. No sé a qué frecuencia trabajan los AIS-MOB que la mayoría de los usuarios tienen.

In CEPT countries, that currently permit the operation of legacy MOB devices on the frequencies 161.975 MHz
(AIS 1) and 162.025 MHz (AIS 2) other than Class M, these devices may not be permitted after 31 December
2024.

Sólo espero que si no los van a permitir (Grupo B), que dejan un buen periodo de transición. Lo que hay que tener en cuenta es que los sistemas de los barcos y costas dejarán de monitorizar las frecuencias que usan.

¿Alguien ha probado si tus equipos a bordo (MFD, radio DSC, etc) los detectan y si reaccionan?