Audio Interface

The VOR/MB receiver 1 sends marker beacon audio to the remote electronics unit (REU). The REU supplies marker beacon audio to the flight compartment.

Marker Beacon Data

The VOR/MB receiver 1 supplies marker beacon data to the 1 and 2 common display system (CDS) display electronics units (DEU). The receiver also supplies marker beacon data to the FDAU.

VOR/MARKER BEACON RECEIVER

General

The VOR/marker beacon (VOR/MB) receiver has these two parts:

· VOR receiver

· Marker beacon receiver.

The marker beacon system operates in the VOR/MB receiver 1 position. The marker beacon receiver receives 75 MHz signals.

Test and Indications

You do a test of the these VOR/MB receiver 1 functions at the same time:

· VOR function

· MB function.

There is a test switch and two light emitting diodes (LEDs) on the front panel of the VOR/MB receiver.

Flight Fault Memory

The VOR/MB receiver has a nonvolatile flight fault memory.

Only shop personnel can read the memory.

MARKER BEACON ANTENNA

General

The marker beacon antenna receives signals from marker beacon ground stations.

Six screws hold the antenna to the fuselage.

DISPLAYS AND AUDIO OUTPUTS

General

When the airplane goes above a marker beacon transmitter, marker beacon data shows on the primary flight display (PFD).

If you want to hear marker beacon audio, you select the marker beacon audio on the audio control panel (ACP).

Display Types

OM shows when the airplane goes above the outer marker. The OM letters are cyan.

MM shows when the airplane goes above the middle marker.

The MM letters are yellow.

IM shows when the airplane goes above the inner marker, backcourse marker, or an airways marker. The letters IM are white.

NCD/Fail Display

If marker beacon data fails or is no computed data (NCD), the display does not show.

Дата добавления: 2015-10-30