how does the icom r20 dog tracking system work 

This rugged, all-weather collar has an integrated GPS transmitter and antenna that work with the Astro® 220 to ensure that your dog will never be lost again. Plus, it's specially weighted so the antenna will always point to the sky for optimal...

Portable Carrying Case (molded plastic)Convenient carrying case holds your Astro dog tracking system, including Astro 220, DC 20 and dog harness.

Dog Harness (replacement)Includes rugged, all-weather dog harness for the DC 20 transmitter

Airhead® Double Dog™We double dog dare you to climb on, hang on and have some serious fun! DOUBLE DOG is built to last; the 30-gauge PVC bladder is completely covered in double-stitched 840-denier nylon, with no exposed vinyl. It has 2...

Magnetic Mount AntennaThis powerful remote antenna magnetically mounts to your vehicle and connects to the Astro 220 so you can track your dogs with Astro while driving.

Advanced A-GPS Dog LocatorThe Zoombak Advanced GPS Dog Locator is a dependable and accurate way to help you locate your dog and bring her home safely if she runs away or is stolen. Using Assisted Global Positioning System (A-GPS), which utilizes...

DC 20 Dog Collar TransmitterDC 20 transmits dogs position to your handheld Astro GPS (sold separately). Allows you can see his current location and a trail of where he's been on the Map page of your handheld.

Astro 220Tired of searching for your hunting dog in tall grass or dense cover? Now you can leave the hunting entirely to him. Introducing Astro, the first high sensitivity GPS-enabled dog tracking GPS for hunters and sportsmen. This unique GPS when...

Replacement Lithium Ion Battery Pack for DC 20 Dog Tracking Transmitter

Airhead® Hot Dog®You'll have the time of your life on this "water weenie" designed for 1 to 3 riders. HOT DOG has deluxe nylon-wrapped handles with neoprene knuckle guards. There are three neoprene seat pads for comfort and to help...

5' - 9' Perfect PoleSW45660 Telescopes from 5' - 9'. Ideal for larger boats 45' and up as well as RV's and aircraft. Patented no-look tracking system for foolproof adjustments. Teardop design makes Perfect Pole up to 67% stronger than other...

3' - 6' Perfect PoleSW45650 Our most popular telescoping handle. Ideal for RV's and boats of all sizes.Telescopes from 3' - 6'. Patented no-look tracking system for foolproof adjustments. Teardop design makes Perfect Pole up to 67% stronger than...

Use this extension cable with the HM-162B/SW microphones and your Icom marine radio. Extend microphone control of your radio.

Astro 220 Bundle with DC 40 TransmitterTired of searching for your hunting dog in tall grass or dense cover? Now you can leave the hunting entirely to him. Introducing Astro, the first high sensitivity GPS-enabled dog tracking GPS for hunters and...

NAVITRACKvehicle tracking data on your Garmin nüviNavitrack Features:Affordable solutionReady to useExact vehicle tracking dataFlexible reportingEasy to use webservicesUnlimited access to your dataSwitched on, your Garmin Nüvi*...