PD Hawk™ demonstration video. Uploaded by eatechpodcast on Feb 14 2013. PD Hawk™ switchyard PD locator SAFELY locates internal Partial DischargePD activity in open terminal switchyards Unique instrument The world's most effective PD locator for switchyards business benefits Prevents costly failures Rapid return on investment Gathers valuable data on asset condition Extends asset life user features Uniquely fast & accurate Easy to use Portable & rugged Safe. eatech Pod Cast.