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GPS longitude error
#1
I seem to have GPS issue with kplex and signalk. 

I get a correct fix, but then every 30s or so longitude goes to 0 degrees. Then jumps back to my correct position. 

This is not the fault of the GPS unit (BU-353), as it also happens when I have signalk process the output from my Simrad NSS8 GPS.

Interestingly blocking GPS sentences in OpenCPN doesn't remove the issue. 

Any suggestions?

Code:
<MAROON>11:00:32 (TCP:192.168.8.251:10110) $IIGLL,3638.6111,N,00627.1660,W,100028.020,A*33<0x0D><0x0A>
<GREEN>11:00:32 (TCP:192.168.8.251:10110) $SKRMC,090028,A,3638.6111,N,00627.1660,W,6.2,302.2,180619,1.3,W*73<0x0D><0x0A>
<GREEN>11:00:32 (TCP:192.168.8.251:10110) $IIHDG,299.06,-1.32,E,,*0B<0x0D><0x0A>
<GREEN>11:00:32 (TCP:192.168.8.251:10110) $SKROT,-54.10,A*13<0x0D><0x0A>
<GREEN>11:00:32 (TCP:192.168.8.251:10110) $SKRSA,2.14,A,,*00<0x0D><0x0A>
<GREEN>11:00:32 (TCP:192.168.8.251:10110) $SKRMC,090028,A,aN0000NaN,N,NaN0000NaN,E,6.2,302.2,180619,1.3,W*14<0x0D><0x0A>
<GREEN>11:00:32 (TCP:192.168.8.251:10110) $INMWV,281.00,R,4.73,M,A*32<0x0D><0x0A>
<GREEN>11:00:32 (TCP:192.168.8.251:10110) $IIVWR,79.00,L,9.19,N,4.73,M,17.03,K*5D<0x0D><0x0A>
<GREEN>11:00:32 (TCP:192.168.8.251:10110) $SKRSA,2.14,A,,*00<0x0D><0x0A>
<MAROON>11:00:32 (TCP:192.168.8.251:10110) $SKGGA,090028,3638.6111,N,00627.1660,W,GNSS Fix,10,0.9,-3.29,M,-0.01,M,,*29<0x0D><0x0A>
<MAROON>11:00:32 (TCP:192.168.8.251:10110) $IIGLL,3638.6111,N,00627.1660,W,100028.020,A*33<0x0D><0x0A>
<GREEN>11:00:32 (TCP:192.168.8.251:10110) $SKRMC,090028,A,3638.6111,N,00627.1660,W,6.2,302.2,180619,1.3,W*73<0x0D><0x0A>
<GREEN>11:00:32 (TCP:192.168.8.251:10110) $INMWV,NaN,R,4.73,M,A*46<0x0D><0x0A>
<GREEN>11:00:32 (TCP:192.168.8.251:10110) $IIVWR,NaN,R,9.19,N,4.73,M,17.03,K*02<0x0D><0x0A>
<GREEN>11:00:32 (TCP:192.168.8.251:10110) $IIHDG,298.99,-1.32,E,,*0C<0x0D><0x0A>
<GREEN>11:00:32 (TCP:192.168.8.251:10110) $SKROT,-49.29,A*15<0x0D><0x0A>
<GREEN>11:00:32 (TCP:192.168.8.251:10110) $SKRSA,2.14,A,,*00<0x0D><0x0A>
<GREEN>11:00:32 (TCP:192.168.8.251:10110) $SKRSA,2.14,A,,*00<0x0D><0x0A>
<GREEN>11:00:32 (TCP:192.168.8.251:10110) $INMWV,NaN,R,4.73,M,A*46<0x0D><0x0A>
<GREEN>11:00:32 (TCP:192.168.8.251:10110) $IIVWR,NaN,R,9.19,N,4.73,M,17.03,K*02<0x0D><0x0A>
<MAROON>11:00:32 (TCP:192.168.8.251:10110) $SKGGA,090028,3638.6111,N,00627.1660,W,GNSS Fix,10,0.9,-3.29,M,-0.01,M,,*29<0x0D><0x0A>
<MAROON>11:00:32 (TCP:192.168.8.251:10110) $IIGLL,3638.6111,N,00627.1660,W,100028.020,A*33<0x0D><0x0A>
<GREEN>11:00:32 (TCP:192.168.8.251:10110) $SKRMC,090028,A,3638.6111,N,00627.1660,W,6.4,302.3,180619,1.3,W*74<0x0D><0x0A>
<GREEN>11:00:32 (TCP:192.168.8.251:10110) $IIHDG,298.95,-1.32,E,,*00<0x0D><0x0A>
<GREEN>11:00:32 (TCP:192.168.8.251:10110) $SKROT,-38.22,A*18<0x0D><0x0A>
<GREEN>11:00:32 (TCP:192.168.8.251:10110) $SKRSA,2.14,A,,*00<0x0D><0x0A>
<GREEN>11:00:32 (TCP:192.168.8.251:10110) $INMWV,NaN,R,4.73,M,A*46<0x0D><0x0A>
<GREEN>11:00:32 (TCP:192.168.8.251:10110) $IIVWR,NaN,R,9.19,N,4.73,M,17.03,K*02<0x0D><0x0A>
<GREEN>11:00:32 (TCP:192.168.8.251:10110) $INMWV,NaN,R,4.73,M,A*46<0x0D><0x0A>
<GREEN>11:00:32 (TCP:192.168.8.251:10110) $IIVWR,NaN,R,9.19,N,4.73,M,17.03,K*02<0x0D><0x0A>
<GREEN>11:00:32 (TCP:192.168.8.251:10110) $SKRSA,2.14,A,,*00<0x0D><0x0A>
<MAROON>11:00:32 (TCP:192.168.8.251:10110) $SKGGA,090028,3638.6115,N,00627.1667,W,GNSS Fix,10,0.9,-3.29,M,-0.01,M,,*2A<0x0D><0x0A>
<MAROON>11:00:32 (TCP:192.168.8.251:10110) $IIGLL,3638.6115,N,00627.1667,W,100028.020,A*30<0x0D><0x0A>
<GREEN>11:00:32 (TCP:192.168.8.251:10110) $SKRMC,090028,A,3638.6115,N,00627.1667,W,6.4,302.3,180619,1.3,W*77<0x0D><0x0A>
<GREEN>11:00:32 (TCP:192.168.8.251:10110) $IIHDG,298.96,-1.32,E,,*03<0x0D><0x0A>
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Messages In This Thread
GPS longitude error - by mikedeflieslife - 2019-06-18, 10:22 AM
RE: GPS longitude error - by e-sailing - 2019-06-18, 11:35 AM
RE: GPS longitude error - by svkatielee - 2019-06-18, 01:06 PM
RE: GPS longitude error - by mikedeflieslife - 2019-09-03, 12:14 AM
RE: GPS longitude error - by e-sailing - 2019-09-03, 07:13 AM

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