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Raymarine forum / Raymarine Forums / General Discussions v / [CA] [CA11] Chartplotter COG Vector

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[CA] [CA11] Chartplotter COG Vector
02-03-19, 03:42 PM (This post was last modified: 02-04-19 10:22 AM by Chuck - Raymarine - Moderator.)
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Florence Offline
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[CA11] Chartplotter COG Vector
I have a C Series Chartplotter about 10 years old. The time taken to obtain a fix on startup was becoming longer. I have replaced the antenna with a RS150 together with a Seatalk Converter. The fix is now much faster and reliable. The only downside is that the COG readout and Vector is showing about 20 degrees greater than actual. The heading readout is fine. Our local Magnetic Variation here in Auckland New Zealand is 19 degrees East, which seems an odd coincidence.
Question: How can I correct this?
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[CA11] Chartplotter COG Vector - Florence - 02-03-19 03:42 PM

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