2022-03-21, 09:04 PM
(2022-03-20, 11:25 AM)PaddyB Wrote:(2022-03-20, 04:36 AM)Grrreg Wrote: Hopefully it will be acceptable to everyone concerned.
Sorry guys but a negative post on such a positive forum...... but it's not legally acceptable... for very good reasons, any legal ais transmitter will have jumped through many loops to prove that it can behave perfectly with the countless other units broadcasting. The DIY option here might be just fine, but nobody knows without extensive & expensive type approval..
Fine to receive, but personally transmitting on such an important system with something untested is not a good idea... probably very unlikely but even so, it's possible the mess you could make on the airwaves would be bad for the AIS system locally.
Type approval is there for a reason, to make sure as much as possible everything works. ?
You are probably right but...
The system has been tested so as not to cause interference in the frequencies used and the neighboring ones but you have only the developers word, not an expensive certification. The big difference is that everything is open and verifiable.
In the other hand these people had all the certifications: https://en.wikipedia.org/wiki/Diesel_emissions_scandal but they had a closed source impossible to verify until it was too late.