Batboard

Hello all. I just acquired a Motorola Radius GR300 desktop repeater. The repeater uses a Zetron 30 Worldpatch for a controller. I don't have any manuals for the Zetron unit. I emailed Zetron and received no response. I'm looking for a manual so I can do the programming needed. Does anyone know where I can either find a manual or just the information I need? Any help would be appreciated.

Thanks
Jon KC9AXZ
http://www.kc9axz.com