-Name Withheld For Security Concerns wrote in
:

Prices will come down.


If this Chinese unit can be legally imported and used in our respective
countries, it appears prices have dropped like an anchor the rode broke
loose from...already...(c;

--
Larry

Dave Baker wrote in
:

Around this neck of the woods I doubt that they care too much about
the NMEA - the application we are looking at is for vessels that don't
legally need AIS anyway, so we don't need to get Class approval, etc.
We can just submit the units locally & get local approval & that's it
- only takes a couple of weeks & not much money & we'll be out using
them.



I'm sure there is some kind of RADIO authority in Denmark, like our FCC,
that decides what radios are and are not allowed on the air in Denmark,
though, right? FCC doesn't care about NMEA, either. They DO care about RF
interference from dirty transmitters, harmonic radiation, interference with
other services which is why the radio will have to undergo certain tests
and pass them to be allowed into the USA. I'm sure Denmark has similar
regulations to protect its RF environment.

--
Larry

Jack Erbes wrote:
-Name Withheld For Security Concerns wrote:


How many people here think AIS is a good idea? It just seems like
jack-booted thuggary to require it on the bigger boats.

Me's be thinkin thar be some mighty happy pirates.


Arrrrr! We pirates don't need no AIS to find you!

Blackbeard


What would happen if I transmit on AIS that I'm USS Enterprise with 100
fighter planes???

--
Kees

Kees Verruijt wrote:

snip
What would happen if I transmit on AIS that I'm USS Enterprise with 100
fighter planes???


The pirates would already know the following from AIS:

# Ship's position.
# Ship's name.
# Call sign.
# MMSI number for tracking.
# Speed, course, and heading.
# Navigational status.
# Type of ship.
# Position sensor indication.
# Antenna location.
# Rate of turn.
# Rudder angle.
# Vessel's maximum draught.
# Air draught.
# Ship's length and breadth.
# Angle of heel.
# Angle of roll.
# List of ports of call.
# List of hazardous cargo.

I guess if the pirates wanted to take you on it would be their choice,
you would be a nice prize if they pulled it off a takeover. But it
would be like an ant trying to rape an elephant.

Navy vessels maintain a very thorough surface plot down in CIC. They
are tracking the location projected course, CPA, etc., on everything
that shows up on a number of different passive and active sensors. Hard
to sneak up on them.

Jack

--
Jack Erbes in Ellsworth, Maine, USA - jackerbes at adelphia dot net
(also receiving email at jacker at midmaine.com)

Dave Baker wrote in
:

In fact I tested out some AIS receivers from the same company in China
that is selling the transceivers & found them to be better than the
Nauticast units that we also use. Better range of reception.

Dave


This is great news. Thanks for any information you can give us on them.
I'm sure lots of lurkers not posting are very interested in information
about them.

--
Larry

Dave Baker wrote in
:

well, apart from the USS Cole.... :-(

Dave



They don't plot them when they're tied to the dock...

--
Larry

"Larry" wrote in message
...
This is great news. Thanks for any information you can give us on them.
I'm sure lots of lurkers not posting are very interested in information
about them.

http://smartradio.ebigchina.com/sdp/...pl-149552.html

Meindert

Dave Baker wrote:

On Fri, 23 Sep 2005 06:44:28 -0400, Jack Erbes
wrote:


The pirates would already know the following from AIS:


# Ship's position.


Not always correct...

Okay, I expected that but was not sure how it actually goes. Thanks for
the "real world" feedback. I probably should have said "On a best case
basis...", it was only a running joke.

well, apart from the USS Cole.... :-(

That was a sad one. The blame for that should probably be attributed to
allowing her to go there and do that while presenting a politically
correct facade (as far as in port security measures) that was
inconsistent with the real world threat.

Jack

--
Jack Erbes in Ellsworth, Maine, USA - jackerbes at adelphia dot net
(also receiving email at jacker at midmaine.com)

Dave Baker wrote in
:

They didn't, but I'll bet they do now.

Naw, the locals get all excited when you leave the gigawatt radar running
at the dock. Every time the beam passes a building and all the flourescent
lights come on on their own, it seems to upset them....(c;

--
Larry

Dave Baker wrote in
:

Yeah, true. I guess the lesson has been learnt, though the other side
will of course already be planning new tactics.

Dave



I don't think we learned any lessons. The Japanese took advantage of our
stupidity of putting most all the ships on the dock at Pearl Harbor at one
time, right? They were just sitting ducks. If you watch the fleet
operations, nothing has changed that. They all come and go pretty much
together, all still sitting ducks at Pearl, Norfolk, or wherever.

Of course, pretty moot in 2005. The Bubbleheads call them all
"targets"...(c;

--
Larry