"Steve" wrote in message
...
I'm looking at a NIB M710 on eBay.. The opening bids look reasonable..

However when I do a Google on that the M710 model number I'm coming up
with
'dash' number, -21 and -22..

Would these dash numbers have anything to do with the 2182 khz alarm
readyness, DSC or Email readyness??

If I get a plain M710 could it be upgraded ecomomically??


I suggest you chat to Icom..I have found them very helpfull even to
providing instructions and chips to modify ssb to cover ham and marine as
well as USB and LSB . (Icom M800)
E-mail should be no problem..just need money for a modem and use the
connections on the back. You would need a DSC controller for gmdss so
suggest you speak to Icom to confirm all the connections are on the back to
take one.

John