Thread: What are your Favourite or Most Accurate Garmin Devices?

Originally Posted by alamel

My etrex is more acurate and 20 hour battries only 4 for 255 , but 255 have a biger screen

Do you try activate a raw logging for position in Nuvi 255? My Nuvi 765T is not inferior to any non-professional GPS devices in accuracy in this mode. 2-3 meters is total error due to using of L1 GPS channel.
One exception I am using external Garmin marine antenna on car root for reduction of correlation with directivity pattern. In this case tracks is equal without difference - go forward or go back.

Originally Posted by Giomen

Do you try activate a raw logging for position in Nuvi 255? My Nuvi 765T is not inferior to any non-professional GPS devices in accuracy in this mode. 2-3 meters is total error due to using of L1 GPS channel.
One exception I am using external Garmin marine antenna on car root for reduction of correlation with directivity pattern. In this case tracks is equal without difference - go forward or go back.

no I dont try because I Dont care about accuracy so much on my nuvi , but I care on my etrex , and 2-3 meter its what I got on etrex legend HCX

Originally Posted by alamel

no I dont try because I Dont care about accuracy so much on my nuvi , but I care on my etrex , and 2-3 meter its what I got on etrex legend HCX

I use my nuvi as track logger in expeditions. There are no advanced accuracy in raw logging mode but the track records is very accurate and particular!

Originally Posted by Giomen

Do you try activate a raw logging for position in Nuvi 255? My Nuvi 765T is not inferior to any non-professional GPS devices in accuracy in this mode. 2-3 meters is total error due to using of L1 GPS channel. One exception I am using external Garmin marine antenna on car root for reduction of correlation with directivity pattern. In this case tracks is equal without difference - go forward or go back.

Giomen, from what I read, but not confirmed, the pattern of raw Garmin is not identical for all models of GPS. I tried to open the .bin of 3490 but I had no luck. You recommended some application?
Some application "old" captured the raw data from satellites (.bin?) from Etrex serial gps and converted into Rinex format for post processing data. The software (in notebook) could capture raw data before being processed by the GPS, all of these suited to gps and your hardware. Today with different chipsets and usb ports is no more possible to use these applications to Garmin. It would be the ".bin" the data not processed of satellites? It seems so, but do not cease to be strange that are available in the Nuvis and not on handhelds.