The AV-545 is an ADF Sense antenna supplied with Government Approved self-gripping jaws and a stainless steel small diameter low drag tension device for reliable installation. The unit is also supplied with 23 ft of type 6370-2 copperweld polycovered antenna wire for minimum stretching, mounting bracket and hardware, rubber pad and ASA insulator with feed-thru. The antenna operates at speeds of up to 250 mph and altitudes up to 25,000 ft.