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post #2 of Old 05-21-2012
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Re: Raymarine E120 network issues

I've heard of the first issue a couple of times. The early E-120's were very sensitive to voltage drops. The units would work fine until there was a drop in voltage and would shut off and reset. The voltage drop was coming from various items such as a refrigerator unit coming on, or an electric winch being used. Most I know about solved this issue by running an oversized dedicated voltage supply line to the unit.

The AIS will drop off if there is no GPS data. Also, there are two symbols with X's through them. One is the No AIS Signal. On that one, the AIS target symbol in the background is faint. The second one is a bell with an X through it, which means the alarms have been disabled, and there is a vessel emitting an AIS signal in close proximity. If you have the former, it is most likely related to the first problem. If you have the later, you just need to turn on your alarms. I keep my alarms turned off. Going in and out of LA Harbor, the darn thing was constantly sounding off.
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