Cheap Chinese AIS Transponder ordering

Or does one factory make both for two different prices...

Most marine electronics manufacturers now have their products manufactured outside the EU to keep prices down. However, if a contract manufacturing factory started making copies of the products they were being contracted to make and selling them under a different name, they would lose their business very quickly. I can't imagine Furuno allowing this.
 
Which is why I asked about using China Post. Paying such charges when using a courier is a certainty, but less frequent via other routes.

No import charges other than VAT, China Post was more expensive than DHL. The likely doorstep cost will be £230 but last time I did this for an item from the US there was no VAT charged.

It's kind of fun doing a bit of research and hunting the thing down. I could pay £650 for a well known badged one but I don't want to, others do. We have this image of western companies taking a design to a Chinese manufacturer and asking them to produce it. Increasingly these days the larger Chinese/Taiwanese manufacturers design products and offer them to western companies with big brands. It's almost identical to a less well spec'd Furuno product, does that mean China designed it then offered it to Furuno, or Furuno designed it and these are some pre-Furuno version copies coming to the marketplace? I have no idea, I make no recommendation or judgement; frankly I haven't a clue. I checked the CE certification and that's way more than I would do for a piece of kit I was buying from my local Chandlers or online outfit!

If others want to buy one the details are in the first post in this thread and they should try to find out which is the best courier for them; I chose DHL because they were the easiest and cheapest to use and other people will prefer China Post; this thread isn't a recommendation to do what I've done, just a head's up of what's possible.

Ironic that it's about a unit which has a function that I don't value - the transponder - I think I'll label my transponder blip:

"See YBW thread on transponders" :D
 
No import charges other than VAT...

In general there is no import duty on assembled consumer electronic devices into the EU, although there is on components. This was a problem the Raspberry Pi Foundation encountered - get the boards made in China, no import duty, have them made in the UK, import duty payable on the components. I wonder which bone-headed Eurocrat devised that manufacturing discouraging regime.

There is of course VAT to pay.
 
It does have a CE certificate just not the relevant one for an AIS transponder but never mind.

No import charges other than VAT, China Post was more expensive than DHL. The likely doorstep cost will be £230 but last time I did this for an item from the US there was no VAT charged.

It's kind of fun doing a bit of research and hunting the thing down. I could pay £650 for a well known badged one but I don't want to, others do. We have this image of western companies taking a design to a Chinese manufacturer and asking them to produce it. Increasingly these days the larger Chinese/Taiwanese manufacturers design products and offer them to western companies with big brands. It's almost identical to a less well spec'd Furuno product, does that mean China designed it then offered it to Furuno, or Furuno designed it and these are some pre-Furuno version copies coming to the marketplace? I have no idea, I make no recommendation or judgement; frankly I haven't a clue. I checked the CE certification and that's way more than I would do for a piece of kit I was buying from my local Chandlers or online outfit!

If others want to buy one the details are in the first post in this thread and they should try to find out which is the best courier for them; I chose DHL because they were the easiest and cheapest to use and other people will prefer China Post; this thread isn't a recommendation to do what I've done, just a head's up of what's possible.

Ironic that it's about a unit which has a function that I don't value - the transponder - I think I'll label my transponder blip:

"See YBW thread on transponders" :D
 
At present I have AIS/VHF receiver, plumbed to my plotter, if I installed this set up as a standalone unit, would it interfere with my present setup, eg constant CPA warnings with myself.
As Lazy Kipper said no. But bear in mind that you will need a separate antenna. I have the Standard Horizon Gx2100 VHF and AIS and of course it does not show up on that as same MMSI, but I was wondering if I would wonder if the AIS signal is actually going out (eg if the antenna connection is good). Of course you can use an old VHF radio (or 2m FM receiver of any kind) tuned to the AIS channels to pick it up as a sort of burst of hiss every few minutes, or better still ask a friend if it shows up on their display.
 
As Lazy Kipper said no. But bear in mind that you will need a separate antenna. I have the Standard Horizon Gx2100 VHF and AIS and of course it does not show up on that as same MMSI, but I was wondering if I would wonder if the AIS signal is actually going out (eg if the antenna connection is good). Of course you can use an old VHF radio (or 2m FM receiver of any kind) tuned to the AIS channels to pick it up as a sort of burst of hiss every few minutes, or better still ask a friend if it shows up on their display.

I could also check on one of the Internet sites, but seeds of doubt have been planted as to whether this particular avenue is worth pursuing, or given the march of progress, waiting till a UK sourced unit comes down to a reasonable price, or Angus does a YAPP at about fifty squids.:-)

O
 
I could also check on one of the Internet sites, but seeds of doubt have been planted as to whether this particular avenue is worth pursuing, or given the march of progress, waiting till a UK sourced unit comes down to a reasonable price, or Angus does a YAPP at about fifty squids.:-)

There will never be a YAPP that transmits on marine VHF frequencies. I think waiting until main manufacturer prices come down is your best bet. There's really no reason why they should be more expensive than a VHF radio, and they can be bought from well known brands for half the price of the Chinese AIS transponder...

http://www.gaelforcemarine.co.uk/39...rrer=FROOGLE&gclid=CJ-RqPfO9LsCFW_MtAod5HUArg

I predict that in 2 years an AIS transponder from SH or similar, or maybe a new entry Asian company that enters the EU market legitimately, will be less than £100. Nasa are probably working on a budget one too. We will have plenty of clutter to moan about then.
 
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The AIS clutter problem seems to be very localised.. Mainly the Solent! Here in Dover, AIS is a very useful tool, and even with most of the Dutch and Belgian yachts being transponder equipped the clutter is not noticeable.

My upgrade threshold is £200, so I reckon a year will do it.
 
I predict that in 2 years an AIS transponder from SH or similar, or maybe a new entry Asian company that enters the EU market legitimately, will be less than £100. Nasa are probably working on a budget one too. We will have plenty of clutter to moan about then.
I think so too, especially now the US patent has been struck out presumably the EU ones will fall too. If you can wait do.
 
It is for the so-called "Self-Organized Time Division Multiple Access" it is the protocol used by AIS whereby they allocate themselves a time slot to transmit their data in "cooperation" with other units. It expired in 2010 due to cancellation of all claims see Google Patents
I am prepared to be corrected but I have always thought that Class B technology is not based on SOTDMA but is Carrier Sense Time Division Multiple Access (CSTDMA), which was developed later than Class A to circumvent the original patent because the SOTDMA licence fee kept the cost of AIS available only to the commercial sector.

If that is so then the revoked patent should not affect Class B systems ... unless, of course, Class A becomes the de facto standard for all of us.
 
In which case will leisure class A transponders soon become the norm and they will all filter out the previous generation of class B transponders?
 
In which case will leisure class A transponders soon become the norm and they will all filter out the previous generation of class B transponders?
:encouragement:
Which is exactly the point I was (obscurely) trying to make. The old Class A for some, becomes the new Class B.

In fact, to further tread my tedious, technological tic, the Plebs, with their non-simultaneous dual-channel, Class B receivers, will be at even more of a disadvantage with their iffy, intermittent, static data reception. They will worry about what exactly was coming at them in the fog, if it was just a pesky leisure boat or something serious that can kill them, until, ultimately, their target static data is updated with dimensions and type.
 
Most marine electronics manufacturers now have their products manufactured outside the EU to keep prices down. However, if a contract manufacturing factory started making copies of the products they were being contracted to make and selling them under a different name, they would lose their business very quickly. I can't imagine Furuno allowing this.

It is likely the opposite in that there is standard platform produced in China that then known brands buy and badge with their name. Look at Furuno, Comar and Raymarine, same unit, different name.

I have one of the earlier Transas transponder, which is the same board as in: EasyTRX, Comar CSB 200, and also Raymarine AIS 500. Funnily Transas is waterproof, whilst EasyTRX and Comar are not, but they cost more ...

The firmware also is interchangeable. On my Transas I have now the EasyTRX firmware, but also the Raymarine AIS500 firmware works (which supports Seatalk, but my box does not have the wiring for it).
 
In which case will leisure class A transponders soon become the norm and they will all filter out the previous generation of class B transponders?

I think that this myth of filtering out Class B has been clarified as a myth in a recent post by a professional in the scuttlebutt forum. No instrument commercially available is able to even tell if a signal is Class A or B. Technically the only way to know is to look at the NMEA raw data.
 
I think that this myth of filtering out Class B has been clarified as a myth in a recent post by a professional in the scuttlebutt forum. No instrument commercially available is able to even tell if a signal is Class A or B. Technically the only way to know is to look at the NMEA raw data.

A link provided earlier to the chap who help set the standards says ships regularly filter out class B in busy leisure areas; but disagrees with my view that therefore class B is almost useless. A trawl through the thread(s) will find it. He's obviously a very knowledgeable guy; I disagree with his conclusion but he knows what he's talking about.
 
A link provided earlier to the chap who help set the standards says ships regularly filter out class B in busy leisure areas; but disagrees with my view that therefore class B is almost useless. A trawl through the thread(s) will find it. He's obviously a very knowledgeable guy; I disagree with his conclusion but he knows what he's talking about.

I cannot find your chap's post, but the thread with a very clear explanation in Scuttlebutt is there.

Please can you ask your chap to list the marine radar/ais plotters that have the capability to filter out class B and provide a link to the page in the manual documenting the capability? I bet that he will go silent.

Look at your C70 for example that has AIS capability, the only way to guess that a vessel is class B is to point it with a cursor and click on the AIS Details soft button, then read the details and "guess" by the fact that class B do not state Destination and ETA. The class isn't stated anywhere. The software is not so different from the units fitted on large ships.

I repeat, filtering class B is a myth and it does not make sense because the ColRegs apply regardless, so why would a large ship want to be blind to smaller vessels?
 
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