In 1989 Radio Shack released the HTX-100. Radio Shacks HTX-100 was built by Uniden to compete with the already popular HR2510. The Uniden quality makes this radio a very dependable and quality rig to use mobile. I've been useing on for many years, never had any problems and always receive great signal and audio reports. Well here are some mods for the HTX-100 that will enhance the radios performance.