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Old 16-06-2015, 13:31   #1
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sailor HC4500 changing MMSI

Hy guys,

I will install an MF/HF Sailor HC4500, and i have to change its MMSI.

I don't know very well how to do it. If someone can help me or give me some idea.

Best regards!

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Old 16-06-2015, 15:47   #2
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sailor HC4500 changing MMSI

A little more info is required
1) is this a new radio that does not have MMSI number?

2) is this a used radio with MMSI that you wish to change?

3) do you already have a radio with MMSI?

In some cases you might just need paperwork and in other cases the radio has to be sent back to the factory for reprogramming.


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Old 17-06-2015, 14:54   #3
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Re: sailor HC4500 changing MMSI

Thank you for help, so the story is that: i move the mf/hf sailor hc4500 from a boat to another boat.

So if i made that, i think the thr radio should be programmed with the MMSI of the new boat.

Yes the radio is used and had the old MMSI From the other boat.

Yes i have installed an VHF sailor RM2042, i have no reason to program it, because it stay at the same boat.

Thanks for help!
Best regards!
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Old 17-06-2015, 15:45   #4
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Re: sailor HC4500 changing MMSI

This is from the Sailor 4000 manual, got to believe it is the same:

Programming of DSC self-identification
The Maritime Mobile Service Identity (MMSI) assigned to the station must be stored in the DSC
modem before it can be used on board the ship. The MMSI number will be requested each time the
equipment is switched on until it has been stored.
Key in the MMSI number of the ship. Check the number carefully and select ‘ENTER’. After the MMSI
number has been entered it is necessary the restart the system to effect the change: Switch supply off
and on. Check the MMSI number by selecting FUNC, ‘INFO & TEST’, ‘INFORMATION’, ‘MMSI’ and read
the number.
Once the MMSI number has been stored in the DSC modem, change of self-identification is not possible
(only after a factory resetting)
but it seems you can do a factory reset:

1. Switch supply off.
2. Insert factory resetting plug (see below) in Control Unit ALARM connector.
3. Switch supply on.
4. The Control Unit indicates ‘Factory Reset’ and requests MMSI number.
5. Remove factory resetting plug.
All programmable parameters are now reset to the factory default values.
Factory resetting plug: Pin 9 + 13 and pin 8 + 11 shorted. If pin 8 +11 is shorted only MMSI is reset.
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