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 [Please Register or Login to download file] for details about the performance and radio frequency of this product, lawful accessories, and power limits for countries.

ramada wrote:I bought alpha 200 from bulgaria. The distance of this device is limited to 10 km. I bought the same device again from Sweden. The distance of this device appears to be 14,5km.