Antenna, Mast VHF Type AN-104-AX HH-3 Helicopter left or right

left or right

25 inches diameter and 6 inches deep

and the unit is 14 inches high

This one was converted to AC at some point during its history

Antenna, Mast VHF Type AN-104-AX HH-3 Helicopter left or rightThe AN 104 is designed for 100 to 156 MHz, and also contains an anchoring hole for an HF wire antenna support. It thus serves as the VHF antenna and the forward support for an HF antenna. the AN 104 series is the most common US VHF aircraft mast of WWII, and can be seen behind the cockpit of many allied fighters and mid spine on multi engine aircraft, with an antenna wire connect from the top of mast to the top of the tail. According to VHF AN ARC 5