EntityQ4381739· pop 5· linked from 63 articlescounterpoiseSign in to savedevice used as a substitute for a ground connection in a radio antenna systemConnectionsgroundEntityradioEntityelectronicsEntityInternational Standard Book NumberEntitycapacitorEntitywavelengthEntityhertzEntityalternating currentEntityohmEntityantennaEntityamateur radioEntitydielectricEntityradio transmitterEntityCambridge University PressEntityradio broadcastingEntityskin effectEntityTesla coilEntityradio frequencyEntityOliver LodgeEntitydisplacement currentEntityCategoriesAntennas (radio)Electric arcsHistory of air traffic controlLightningRadio electronics