GPS & Land Navigation

Get the most out of your GPS investment by learning to combine GPS, compass, and topographic maps to form a powerful navigation system. GPS & Land Navigation Instructional DVD takes outdoor enthusiasts beyond the basics of GPS operation and into the exciting realm of land navigation. Rather than focusing solely on the GPS receiver, GPS is presented as part of a powerful navigation system including topographic maps and compass. In addition to GPS navigation basics such as obtaining a lock, working with waypoints, and using routes, the DVD teaches the less understood aspects of GPS technology which help users to navigate within its limitations. In order to empower the outdoor enthusiast, the video emphasizes the benefits and teaches the use of topographic maps in conjunction with GPS. Detailed graphical animations are used to clearly demonstrate how to work with both the UTM and Latitude/Longitude coordinate systems. In addition to working with paper maps, the video demonstrates some of the advantages of increasingly affordable mapping software packages. As an added bonus for those looking to purchase their first GPS or upgrade their existing model, the DVD includes a chapter on selecting a GPS unit which explains options available in handheld GPS receivers and PDAs. The information-packed DVD is broken down into seven individual chapters in order to facilitate the ease of learning. Expert tips and graphical illustrations are used to clearly communicate important concepts. To view screen shots of the program click on the cover image above.

V-Gis Decoder

Features: Closed Captions for the Deaf and Hard of Hearing. V-Chip Technology enabling parents to choose what programs and movies are appropriate for children. Reads both TV and MPAA (movie codes). Capability to block out specific language, sexual situations, violence and dialogue. Compatible with any TV through a Video Source (cable box, satellite receiver or VCR). Connects easily to TV and Video Source with standard 75 ohm cable. No RCA audio/video connections needed. Remote control and IR Link included. FCC approved.

iPhone For Dummies

Book Description
Get up to speed fast with this full-color guide to Apple’s revolutionary new mobile phone– widescreen video iPod–Internet communications device.

Announced to great fanfare, Apple’s iPhone promises to reinvent the market for portable electronic devices, combining mobile phone, music and video player, digital camera, Internet browser, and e-mail in a single sleekly designed, brilliantly engineered package. Illustrated throughout with full-color screen shots and illustrations, this fun and easy guide helps you make the most of all the features of this pioneering device.

* Make and receive phone calls
* Set up iTunes and your iPod
* Buy music and videos
* Play podcasts, music, videos, and photo slideshows
* Browse the Internet
* Send and receive e-mails and instant messages
* Take and organize photos
* Sync with your desktop
* Troubleshoot common problems

Clear Rubber Skin Case for Apple iPhone

* Usable and protective, the protective case for your Apple iPhone
* Durable soft to the touch, and can strech and flex to help cushion your iPhone from bumps and hard knocks

Handheld GPS how to get GPS

# Determine the type of internal antenna in your GPS. This information will likely be listed in a table of "specifications" in the back of your owner's manual. There are two main types:

* Patch antenna, and
* Quadrifilar helix antenna

# Hold your GPS properly to receive a stronger signal from the GPS satellites:

* If you have a patch antenna hold your GPS flat
If you have a quadrifilar helix antenna hold your GPS erect

# Stand where you have a clear view of the sky. Buildings, hills, trees, etc., will block the signals from the GPS satellites. The goal is to receive the signal from as many GPS satellites as possible.
# Hold your GPS at shoulder height. Even your body can block the signal from the GPS satellites.
# Use "position averaging". This is a feature that allows your GPS to take many measurements and then calculate an average position before saving it in the GPS receiver's memory.
# Turn on the WAAS capability. The WAAS signal is broadcast from several geo-stationary communications satellites. The WAAS signal provides corrections for your GPS measurements and enhances the accuracy of your GPS receiver.

Free GPS Software

EasyGPS

EasyGPS by Topografix is a free utility that will open and transfer Travel By GPS waypoint and route data in GPX format to your Garmin, Magellan, or Lowrance GPS receiver. With EasyGPS you can also create and edit your own waypoints and routes.
ExpertGPS

EasyGPS's big brother, transfers all GPX data (waypoints, routes, and tracks) at TravelByGPS.com to your GPS receiver. ExpertGPS uses your internet connection to download free topographic and aerial photo maps from the Internet and stores them on your computer. Moreover, ExpertGPS is a great tool for editing GPX data and creating simple maps. New ExpertGPS Ver.2 adds custom symbology and the ability to create area (polygon) map features.



Fugawi Global Navigator Software

Fugawi Global Navigator is designed for overlaying GPS data on digital basemaps from a variety of sources. FUGAWI OFFERS DIGITAL MAPS THAT YOU CAN'T FIND ANY WHERE ELSE. Global Navigator now comes with a vector world background map, elevation data, place names data, and street maps. Fugawi will also import scanned map images that you can georeference (calibrate) and use to create your own trail guides, street maps, and nautical charts. The "fly through" feature allows you to see your maps and data in 3D as never before. And now you can create digital tour guides by linking proximity waypoints to multi-media resources. Fugawi Global Navigator supports the GPX file format and runs on PC, PocketPC, and Palm computers.

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The GPS satellite system

The 24 satellites that make up the GPS space segment are orbiting the earth about 12,000 miles above us. They are constantly moving, making two complete orbits in less than 24 hours. These satellites are travelling at speeds of roughly 7,000 miles an hour.

GPS satellites are powered by solar energy. They have backup batteries onboard to keep them running in the event of a solar eclipse, when there's no solar power. Small rocket boosters on each satellite keep them flying in the correct path.

Here are some other interesting facts about the GPS satellites (also called NAVSTAR, the official U.S. Department of Defense name for GPS):

* The first GPS satellite was launched in 1978.
* A full constellation of 24 satellites was achieved in 1994.
* Each satellite is built to last about 10 years. Replacements are constantly being built and launched into orbit.
* A GPS satellite weighs approximately 2,000 pounds and is about 17 feet across with the solar panels extended.
* Transmitter power is only 50 watts or less.