100 meters: Accuracy of the original GPS system, which was subject to accuracy degradation under the government-imposed Selective Availability (SA) program. 15 meters: Typical GPS position accuracy without SA. 3-5 meters: Typical differential GPS (DGPS) position accuracy. Less than 3 meters: Typical WAAS position accuracy.

About
the size of a small cordless phone, the bright-yellow and black Rino 110
has two fixed antennas coming out of the top. One antenna lets you talk
at up to two miles using 14 FRS (Family Radio Service) channels. It also
can communicate across 8 GMRS (General Mobile Radio Service) channels,
offering up to 5 miles of range, though this requires an FCC license.

The other antenna offers the advanced WAAS-enabled GPS tracking you'd
expect from Garmin (see chart at right). Using the large 160 x 160 pixel
backlit display you can save up to 20 different routes and 500 waypoints
in the unit's 1 MB of memory. Plus, in addition to the built-in cities
database, you can even upload maps from Garmin's Points of Interest CD
with an optional adapter.

The fun really starts when you combine these two features. The Rino can
transmit its location to others at up to two miles and track up to 50
contacts simultaneously. So, for instance, you can display a map on the
screen with the names and locations of all of your friends, or select a
friend and have the Rino guide you to their location.

The Rino's graphical interface makes it easy to control its myriad
functions with a 5-way cursor, similar to those found on laptop
keyboards, which lets you move quickly across the menu screens. This
waterproof device runs on 3 AAA batteries.

Once you use the Rino 110, it's hard to imagine purchasing a two-way
radio without GPS functionality, the two features go so well together.
--Ken Feinstein

Pros:

• Two-way radio with GPS functions
• FRS and GMRS
  support
• Waterproof
• Large backlit display

• 1 MB memory not
  upgradeable