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DeLorme Earthmate PN-40 Handheld GPS review
Written by Jason Elliot   
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DeLorme Earthmate PN-40
The DeLorme Earthmate PN-40 offers a full-functioning handheld GPS with several additional goodies. With all of the advantages the PN-40 offers, it is value priced. 

The DeLorme Earthmate PN-40 is equipped with commonly found features of high end handheld GPS.

Topographic and street maps which move and adjust to your position
  • WAAS-enabled
  • Electronic compass, altimeter, and barometer
  • Color screen viewable from darkness to glaring sunlight
  • Internal memory to store waypoints, tracks, and routes
  • Exchange of maps, tracks, and waypoints through a PC or laptop

The PN-40 provides additional features to the standard ones in higher-end handheld GPS. It has 1GB of internal flash memory which will store maps and up to 1,000 waypoints, 50 routes, and 10 tracks. The unit also supports SD cards up to 32 GB for added maps, waypoints, routes and tracks.

DeLorme takes advantage of its strong history in mapping by including detailed 1:100k topographic and street maps of the entire U.S with the purchase of the PN-40. Users can also sign up for DeLorme's map subscription service ($29.95/year) to download additional maps.

DeLorme's map library is abundant and even includes nautical maps which are a hit with all paddlers. If you are lugging the PN-40 in your sea kayak, it's good to know that it conforms to the IPX-7 waterproof standard. This handheld GPS can handle being submerged underwater for brief periods but its waterproofing will not handle snorkeling or scuba diving.

The DeLorme Earthmate PN-40 locks onto a signal quickly once it powers up and displays an accurate position. This is accomplished through its 32-channel STMicroelectronics Cartesio chipset. This is most beneficial for geocaching. The DeLorme Earthmate PN-40 will pinpoint a location of a geocache within a few meters.

What is Geocaching says...

Geocaching is a high-tech treasure hunting game played throughout the world by adventure seekers equipped with GPS devices. The basic idea is to locate hidden containers, called geocaches, outdoors and then share your experiences online.

It makes searches quicker and more successful. Less accurate handheld GPS or a PDA make geocache searches longer and very frustrating. The DeLorme Earthmate PN-40 also is compatible with Groundspeak's website. This compatibility makes your geocaching paperless.

The PN-40 also can provide driving directions. Most handhelds are incapable of providing driving directions, so this is an added bonus. Though, this feature is not as robust as a GPS designed specifically for cars. The PN-40 works adequately for driving directions but it is not its strongest feature.

DeLorme LogoThe DeLorme Earthmate PN-40 gives a user the power of a top-end handheld GPS at a reasonable price. The PN-40 comes in a bright orange color making it impossible to lose. DeLorme offers several different packages to purchase the PN-40. Packages range from an MSRP of $399.95 to $539.95. All of DeLorme's Earthmate GPS carry a 1-year limited warranty from defects in material and workmanship.

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Jason Elliot

JElliotJason Elliot is the Editor and Publisher of Elliot has established a respected following with the top industry professionals and gearheads for his nonbiased reviews of outdoor gear and apparel. Elliot is a regular contributor to, and other publications on top of his editorial and writing role with

Elliot left a successful fifteen-plus year management career that he worked at Fortune 500 and S&P 500 companies to pursue his passion for writing about the outdoors. He holds a bachelor’s degree from Clarion University of Pennsylvania and a master’s degree from La Roche College.

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