I'm not a "radio guy". Bought these for a job out in the Mojave Desert, these were left over. All I know is we put them through hell and back in dusty, sandy conditions and they just kept going. Range was about 4-5 miles.
Here's what I was able to find to answer your questions.
The Motorola RDU4100 operates on 89 UHF Business Exclusive Frequencies and 121 Privacy Codes. The Motorola RDU4100 UHF radios boast exceptional audio quality along with industrial design durable metal die cast chassis. It meets IP54/55 and Military Spec 810 C, D, E and F standards for shock, rain, humidity, salt fog, vibration, sand, dust, and temperature. This one is rugged and perfect for the heavy user.
Customer Programming Software (CPS) Allows you to easily program and manage all radio settings. Download your Motorola CPS Software HERE. Plus, the CPS software provides access to Radio Reporting to manage cloning and radio profiles. Requires RKN4155 interface cable (NOT INCLUDED).
*Maximum range can only be achieved over water or open rural areas under optimum conditions. FCC license required, form 601 and instructions are located on their website. Before filling out form 601 you must select which frequency your company will operate on. Available frequencies can be found in the owner's manual. Features and specifications subject to change without notice.
