DMN42-1 VOR/LOC Loop Antenna Frequency 108-118 MHz 329-335.3 MHz
Discontinued Item
(DAI Part# DMN42-1)
The DMN42-1 is a tail-mounted antenna for use with VOR, localizer
and glide slope receivers. It has been specially designed to provide the
outstanding electrical performance of a balanced, center-fed loop at
minimum cost. The input balun transformer is permanently sealed inside
the center housing. Output cables extend from this transformer, through
each side bar, to the feed points at the bulge on each element. This
unusual configuration permits reliable, economical installation on aircraft
that cruise at speeds up to 230 mph. When properly installed, the antenna
receives the horizontally polarized VOR and localizer signals with uniform
high sensitivity from all directions around the aircraft over the full VOR/
localizer band. Because of the inherent characteristics of all balanced
loop-type antennas, vertically polarized, error-producing signals are
rejected. The antenna also has excellent forward reception over the
glide slope band (329 to 335 MHz) and can be used for this function by
adding a DMH22-1 coupler to the system.
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