Inquiry (采购产品): Line Noise Using Model 701-302 handsets with external speakers on drilling rig application. Have excessive line noise while operation a/c top drive unit. do you offer a filter to reduce line noise. recommendations would be greatly appreciated **** Hidden Message ***** Bruce Dobens 78387 Company: Orion Drilling E-mail: bnadobnz@yahoo.com **** Hidden Message ***** bnadobnz@yahoo.com
