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[CA11] Questions about AIS on legacy C120
07-22-19, 04:24 PM (This post was last modified: 07-26-19 03:12 PM by Chuck - Raymarine - Moderator.)
Post: #1
[CA11] Questions about AIS on legacy C120
On my C120, I'm running f/w 5.16 and have 2 questions:
1. I'm driving AIS with a Standard Horizon GX2150 radio. Almost everything works perfectly: see targets, ais list... Qhe question: I don't see virtual ais targets like mmsi 993692036. If I connect a pc to the 2150 38,400 baud output and bring up OpenCPN, I see 6 or so similar virtual targets. What I suspect, the c120 is not displaying 99X mmsi targets. Can you think of anything I can try or look into?

2. In using my GX2150 to drive ais on my c120, I can see myself as I transmit ais class b with a em-trak b100 transceiver. Much of the time I see a ghost image of myself along with my boat name, what I expect. Then, at random times, all boat names disappear and all I see are mmsi numbers. This is after hours of everything being on. It looks like I lose static data but continue to see real time ais data. After random times, boat names re-show up in AIS LIST. Any idea why names disappear?

Thanks
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07-26-19, 03:20 PM
Post: #2
RE: [CA11] Questions about AIS on legacy C120
Welcome to the Raymarine Forum Norm,

Q1. I don't see virtual ais targets like mmsi 993692036.
A1. The C-Series Classic MFDs were among Raymarine's early product to support AIS. However, AIS AToNs (99) were not among the AIS objects supported by C-Series Classic MFD software.

Q2. At random times, all boat names disappear and all I see are mmsi numbers. This is after hours of everything being on. It looks like I lose static data but continue to see real time ais data. After random times, boat names re-show up in AIS LIST. Any idea why names disappear?
A2. I haven't heard of this issue before, but it may be related to the MFD displaying ownship target information. Should you also own the em-trak transceiver, then I would recommend that you consider interfacing the em-trak transceiver to the MFD rather than the GX2150. Doing so will eliminate plotting own vessel and may also address this symptom.
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