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Showing results for tags 'gps'.
Found 3 results
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Well Nige ! You've started me off. I bought the Lowrance HDS5 off you and realised how much I missed the two 5" units I had on Small Fry. Now I've gawn and spent more dosh on a HDS5 Gen2 as well I'm not going down the 3D side scan route but I do need a Navionics SD card for our area. So does anyone have a Navionics SD card for our area for sale ? ? ? ? ? ? Otherwise I'll have to run into a chandlery shop brandishing cash ! ! ! As soon as I've installed these on Tiddler I'll have a Garmin GPSmap 551S and transducer for sale in very good condition and hardly used It's only 2 years old and fine if you're not an old codger with dodgy mincers ! ! ! Not sure of price yet. Jim
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The BCC recently reported that satellites of the GLONASS network experienced a half-day outage when bad data was uploaded to spacecraft. This gave position accuracy figures of 50km out! "What we saw last week was many people being affected by the GLONASS failure even with receivers that were also picking up GPS." http://www.bbc.com/news/science-environment-26957569 Seems like this was maybe a human error thing, but given the current situation with Russia other thoughts comes to mind, like a tester for degree dependence on Russian systems. Anyway for fisherman, it just shows blindly assuming Global Navigation Satellite Systems must be always correct could lead to tragedy. On a more technical point my system only supports GPS, on the systems that support GLONASS (and others) as well, is the position a perm of all of them, or can you choose which system to follow, or can you also get warnings if there are significant positional differences between them? The latter could be very handy.
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Karl Betteridge Marine electronics engineer trading as BetterConnected KAB Marine electronics engineer with 12 years professional experience and fully insured Experienced with Raymarine, Garmin, Simrad, KVH, Furuno, Icom and Digital Yacht Telephone Karl on 07729399433 Email: karlbetts.kb@googlemail.com
