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Old 30-04-2017, 02:01   #1
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MMSI programing on icom radio

I have a IC506, and it happened that i had to change MMSI - boat change. The manual says this can only done by the distributor for security reasons.

I always do this kind of stuff on my own, but this time i was not able to find the instructions on the web. I then got a hint from a friend and managed to reset the MMSI (you have to apply logical high to one of the pins plus press combination of keys at power-up). And now to the point, why this procedure has to be kept in secret? Maybe not to swap identity while underway - but this would be illegal anyway... If there are bad guys around they can afford to pay the service to do the reprogramming. And on the other hand, i can always reprogram my AIS transponder, so where is the point?

Can i publish this procedure without consequences?
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Old 30-04-2017, 04:25   #2
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Re: MMSI programing on icom radio

Its the FCC rules that say that the user cannot change the MMSI to prevent (reduce) abuse, so the manufacturers have to implement it somehow.

Unfortunately, like many rules, it makes life harder for the honest folk.

That said, the restriction is imposed on the manufacturer, not you. There are also rules against inputting an MMSI that is not yours, and for AIS equipment, against user programming of certain settings... but that would restrict how the info is used, not the info itself.

You might be enabling some rule-breaking, but not doing the breaking yourself. Then again, I am not a lawyer, nor have I played one on TV.

... but I do have a friend who legitimately needs to change an MMSI in an Icom located abroad, where the dealer refuses to do so preferring to sell him a new radio (not gonna happen), so that info would be very useful. By PM if you prefer not to post.
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Old 30-04-2017, 09:04   #3
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Re: MMSI programing on icom radio

Here's what the user manual says for my radio ... it's an M304, so an older/simpler model, but maybe the process is similar.

Note it says that the programming can only be performed TWICE in the lifetime of the unit.
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Old 13-04-2019, 22:02   #4
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Re: MMSI programing on icom radio

Good day Gentlmans

As I understand from your first post you succeed to change MMSI on your Icom IC-M506 so please is it possible to send me procedure on my email since you can not post it.
Bruskin@net.hr
Thanks in advance 😀
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Old 14-04-2019, 07:26   #5
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Re: MMSI programing on icom radio

Icom charged me $95 to reset the MMSI on my handheld!
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Old 25-04-2019, 06:32   #6
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Re: MMSI programing on icom radio

Note: I am an Icom Dealer...

You need special software and special cables from Icom in order to change the MMSI on the radio if it has already been programmed. This is due to the law requiring manufacturers to make it hard for owners to reprogram the radios. Too many sailors were incorrectly programming the radios. This is the same reason that AIS Transponders need to be programmed by a dealer before being shipped to the customer.

You need the Icom Radio Cloning software, which only dealers can get from Icom, and you need a custom cloning cable from Icom for the radio.. The dealer cost for the software and cables combined is over $100.
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Old 12-05-2019, 08:20   #7
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Re: MMSI programing on icom radio

Quote:
Originally Posted by s57ra View Post
I have a IC506, and it happened that i had to change MMSI - boat change. The manual says this can only done by the distributor for security reasons.

I always do this kind of stuff on my own, but this time i was not able to find the instructions on the web. I then got a hint from a friend and managed to reset the MMSI (you have to apply logical high to one of the pins plus press combination of keys at power-up). And now to the point, why this procedure has to be kept in secret? Maybe not to swap identity while underway - but this would be illegal anyway... If there are bad guys around they can afford to pay the service to do the reprogramming. And on the other hand, i can always reprogram my AIS transponder, so where is the point?

Can i publish this procedure without consequences?
To do this on IC-M506EURO, you will need CS-M506 software and
OPC-478UC cable + OPC-980 cable.


CS-M506 you could get (maybe) for free on some forums, e.g. https://hamfiles.co.uk or buy on eBay.



There is no replacement option for OPC-478UC cable, so you will have to buy original one. OPC-980 cable could be DIY with Amphenol LTW BD-08BFFA-LL7001.
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