Garmin Astro 430 Owner s Manual - Page 19

Before you replace the VHF antenna, you must remove all dirt, water, and debris from the device. Also, you need a small Phillips screwdriver. 1 Remove the 4 screws from the cover over the VHF À antenna. NOTE: You should note the location of the one short screw . Á 12Verify the gasket is not damaged and is completely seated in the groove. 13Connect the battery connector and the power connector to the device. When properly installed, the connector plugs snap into the ports. 14Replace the back plate, and replace and tighten the screws to secure the back plate. 15Replace the L-shaped cover, and replace and tighten the screws to secure the L-shaped plate. 16Verify the gasket is not sticking out of the device. Replacing the Collar Strap Before you replace the collar strap, you must remove all dirt, water, and debris from the device (Cleaning the Device, page 11). 1 Pull the collar strap out of the GPS antenna, VHF antenna guide, and the dog device. You may need to push and pull the collar strap to properly remove it. You may need to loosen the screw on the GPS antenna case, but do not remove them. 2 Thread the new collar strap through the dog device, VHF antenna guide, and GPS antenna. 3 If necessary, tighten the screws that secure the GPS antenna case. VHF Radio Information This product may be used only on specific radio frequencies, which vary depending on the country of use. The handheld device and the dog device allow the user to install a different antenna. Changing the antenna can result in improved radio performance and higher radiated power. You must not use the device with a third party antenna or an antenna not approved by Garmin. Go to www.garmin.com/tracking-legal for details about the performance and radio frequency of this product, lawful accessories, and power limits for countries. Replacing the VHF Antenna in the Handheld Device 1 Locate the VHF antenna (Astro 430 Handheld Device, page 1). 2 Rotate the VHF antenna counter-clockwise until it comes free from the device. 3 Insert the replacement VHF antenna into the antenna port and rotate the antenna clockwise by hand until it stops. Replacing the VHF Antenna in the Dog Collar Device NOTICE Do not excessively bend the band that connects the main device case with the GPS antenna. When the cover is removed, do not disturb the sealant opposite the VHF antenna, because this can damage the waterproof seal of the dog collar device. 2 Pry off the cover. 3 Remove the screw securing the VHF antenna to the back  plate. 4 Pull the length of the antenna from the antenna guide to remove the old antenna. 5 Loop the antenna guide around the collar strap, and thread the new VHF antenna through the guide. This helps to point the antenna up. 6 Replace the screw securing the VHF antenna to the back plate. 7 Replace the cover over the VHF antenna. 8 Replace the 4 screws on the cover, replacing the short screw in the correct location. Changing the Fuse in the Vehicle Power Cable NOTICE When replacing the fuse, do not lose any of the small pieces and make sure they are put back in the proper position. The vehicle power cable does not work unless it is assembled correctly. If your device does not charge in your vehicle, you may need to replace the fuse located at the tip of the vehicle adapter. 1 Rotate the end piece counter clockwise to unlock it. À TIP: You may need to use a coin to remove the end piece. 2 Remove the end piece, the silver tip , and the fuse . Á  3 Insert a new fast-blow fuse that has the same current, such as 1 A or 2 A. 4 Place the silver tip in the end piece. 5 Push in the end piece and rotate it clockwise to lock it back into the vehicle power cable . à Data Fields Accuracy of GPS: The margin of error for your exact location. For example, your GPS location is accurate to within +/- 12 ft. (3.65 m). Appendix 15