The satellite tracking system GLONASS developed by the Russians will now be used by the new Garmin eTrex series (eTrex 10, eTrex 20, and eTrex 30). The new eTrex models will be able to track both GPS and GLONASS satellites at the same time. What this means for you is that you’ll be able to get a satellite position fix about 20% faster than you were to use GPS alone. Since there are 24 GLONASS satellites so far this gives your device more options to use and listen for the strongest signal. The only downside of activating both technologies is the reduced battery life. There’s always a trade off.
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