How do you turn the symbols on a weather chart into a meaningful forecast? Armed with Understanding Weatherfax and a current weatherfax chart you have all of the essentials for making your own forecast, no matter where you are in the world.New to the Second Edition: Satellite images, interpreting ea...

Found It ! Introducing Geocaching to Kids and Families discusses the sport of geocaching. It explains how satellites are used, how to get started on your first hunt, what equipment to use, and how to log in and report your finds. With a little reading and a little luck, you will soon find your first...

Marine GPS Receiver SA-920 with Sirfstar 4 Chip: High End GPS Receiver for Boat, Ship - Usable with Plotter, Radio, Fishfinder, etc over RS-232 Interface*. . Overview: Output Lat/Lon, Time, Speed, Course & Satellite Data in standard NMEA protocol and at RS232 level which can be linked directly to ma...

This book is a complete guide to all forms of communication at sea. It examines the international marine use of cell phones, satellites, amateur radio, and email, cutting through the jargon and sales hype to enable readers to make the right choice for their needs. Comprehensive appendices on radio p...

Marine GPS Receiver SA-920 with Sirfstar 4 Chip: High End GPS Receiver for Boat, Ship . *This Receiver is offered for: ICOM IC-M411 IC-M603 IC-M505 IC-M801E IC-M421, DS100, IC-401, IC-M603, IC-M801 IC-M323 IC-M423 IC-M423G IC-M412 - Use green and shield cables for DATA in and out The receiver comes...