Bob,
You need to program your MMSI (an identifier you get when you register the radio). In Canada (and I bet in the US) in order to operate a DSC radio you are required to have the DSC endorsed radio operator’s licence. Without the MMSI your DSC function does not work - it is like a phone without an assigned number. If I recall correctly, it is illegal to use the radio without registering it and acquiring the MMSI number. And if you don’t program the MMSI, the radio would probably not work at all (it should prompt you constantly to enter that number). In order to use the point to point transmission (not any of the Distress or Urgency calls) you have to know the other party’s MMSI. Preferably, you want to have it programmed into your radio (so you can select it, like from a “Contacts” list in your phone). Ch. 70 is used SOLELY for digital handshake between the DSC radios. Using that channel for any conversations is prohibited. I am afraid that you won’t be able to make the DSC call to the passing barges unless you know their MMSI (or can look it up). Good luck Marek From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of bobmor99 . via CnC-List Sent: Thursday, January 14, 2016 21:05 To: cnc-list@cnc-list.com Cc: bobmor99 . <bobmo...@gmail.com> Subject: Stus-List Testing DSC Today I received my first grown-up radio, a Standard Horizon GX2200. DSC looks like a very nice technology but I am wondering how to test/learn it without triggering a bunch of false alarms or general chaos. I'm docked in a backwater, but there is occasional barge traffic that probably has AIS transmitters. I'd like to verify that my new radio can easily communicate (via channel 70?) with the barges as they pass by. Maybe I need to read the fine manual again but am wondering if anyone else has done this exercise and if there are any tips or gotchas. Many thanks in advance, --Bob M Ox 33-1 Jax, FL
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