The best way to select a GPS Receiver (6)
Energy Supply
Maintain in thoughts what form of batteries the device will use and ask your self the following: Will it function with far more than a single kind? How quite a few added batteries will I have to pack in (and out) if I head out over a long trip?
* As with digital cameras, the battery life of a GPS unit depends on how quite a few functions it has eating up the supply. To combat the notoriously ravenous appetite of electronics, numerous GPS gadgets possess a "sleep" function that conserves energy when the GPS isn’t being utilised. Some simpler devices lose temporarily stored facts when the device is turned off.
* When applying your GPS receiver all-around town, take into account rechargeable batteries. For trail use, specially on overnight trips, you might prefer lithium or alkaline batteries. Both are much more trustworthy and typically last longer than rechargeables, so you won’t ought to carry as numerous backups. Lithium batteries make an specially great selection, as they have a longer shelf life and function very well inside the cold.
* Most modern GPS receivers have built-in back-up batteries to continue to keep your stored facts safe when the major internal battery runs out. This internal battery is usually replaced through the manufacturer who is able to save and reload your hard-won navigation data.
Speed
GPS models search for and acquire place data constantly. But some devices procedure information and offer updates far additional swiftly than other people. In general, the much more channels a GPS device has, the quicker it will compute and refresh its on-screen details. (When comparing styles head-to-head, don’t forget that a unit’s performance in "simulation" mode may perhaps be far faster than its speed from the wilderness.) And it takes some models longer than other people to re-acquire satellite signals after they’ve been turned off and back on. Seem for "Time to Very first Fix" (TTFF) data when comparing designs.
Size