Beschreibung
RAMI AV-529 is a VHF COM whip antenna for 118–137 MHz. The radiating element is encapsulated in a fibreglass whip on a die-cast aluminium three-bolt base. The antenna is 21.56 in (548 mm) high, weighs 8 oz (227 g) and has a female BNC connector. AV-529 is the gloss white version; the gloss black version is AV-529(-GB).
It is vertically polarized with an omnidirectional pattern, 50 Ω nominal impedance, VSWR of 1.8:1 maximum and 25 W RF power capacity. It is rated to 350 mph (304 kt) and 50,000 ft. The FAA has authorized the AV-529 to TSO-C37d and TSO-C38d. RAMI lists it as a direct replacement for the CI 291.
A sealing gasket, a back-up plate, mounting hardware and a drilling template are supplied. The 50 Ω coax and its BNC connector are not included. RAMI specifies at least 2 ft (0.6 m) from other antennas and reflective surfaces and a good electrical bond to a metal skin; on composite or wood aircraft, a ground plane of two crossed 48 in (1.2 m) copper wires is made inside the skin. Installation in a certified aircraft needs an approved modification and a Certificate of Release to Service. Fit depends on the aircraft type and the COM radio model.
