Been through 6 or 7 US airports with mine. Again just unscrewed the aerial and plate from the lead and left them all in the front pocket of my rucksack. No issues, no looks from security. Security now seem very used to large electronic devices in handbaggage as I also usually carrying the laptop (seperated at screening), camera, DVD player and 3 charger units in the same bag. It must look a right spagetti soup on the xray.