SR-447HPC2 Manual Shawn July 18, 2018 18:13 Updated The owners manual for the SR-447HPC2 is available for download here SR-447HPC2-manual160712.pdf 3 MB Download Related articles SR-447HPC2 Setup Guide How do I turn the SWR Meter on? Will my factory power hookups handle this 447HPC2 or would a cigarette lighter plug work better. What's your most powerful radio? What antenna cable should I use and how many ohms ? Comments 0 comments Article is closed for comments.