* MODEL: RADIUS GR400 & GR500 X-PAND Repeaters
* Additional Info: Intro to the GR400 & GR500 X-Pand repeater and components, Assembling the GR400, Assembling the GR500, Converting the GR500 repeater into the GR500 X-Pand repeater, Tuning the duplexer, Controller interconnections, Controller adjustments, Troubleshooting
* Loaded with schematics, diagrams, parts lists
