PS Engineering Avidyne PMA8000B Instrucciones de operaciones descargar pdf (Pagina 9)

Page 9

October 2010

202-890-0403

CREW: Pilot and copilot are connected on one intercom channel and

have exclusive access to the aircraft radios. Again, the music that the

crew and passengers will hear is determined by the Smart Function

Keys.

The intercom is inhibited when the Split mode (pilot on COM 1, co-

pilot on COM 2) is activated. The LED indicator on the Mute button

will light to indicate that the intercom is muted. To activate the inter-

com, press the Mute button; the indicator will go out, and intercom

will be available for the crew positions. The passengers will always

have intercom capability.

Marker Beacon Operation (10)

The Marker Beacon

Receiver uses visual

and audio indicators

to alert you when the

aircraft passes over a

75 MHz transmitter.

The Blue lamp, la-

beled “O”, is the Outer Marker lamp and has an associated 400-Hertz

'dash' tone. The lamp and tone will be keyed at a rate of two tones/

flashes per second when the aircraft is in the range of the Outer

Marker Beacon.

The Amber lamp, labeled “M”, is the Middle Marker lamp and is

coupled with a 1300 Hertz tone. It is keyed alternately with short 'dot'

and long 'dash' bursts at 95 combinations per minute.

The White lamp, labeled “I”, is the Inner marker and has a 3000

Hertz 'dot' tone. The lamp and tone will be keyed at a rate of six times

per second.

The audio from the Marker Beacon Receiver can be heard by select-

ing the "MKR" push-button switch. To adjust the volume level, there

is a service adjustment located on the top of the unit.

A pushbutton is used to set the receiver sensitivity and to test the indi-

cator lamps mute the marker audio.

Use "HI" sensitivity initially. This allows you to hear the outer

marker beacon about a mile out. Then touch the smaller MKR button

to switch into Low Sensitivity mode. “LO” sensitivity gives you a

more accurate location of the Outer Marker. Holding the MKR button

for one second activates marker test lamp, labeled "T/M" and illumi-

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PS Engineering Avidyne PMA8000B Instrucciones de operaciones Pagina 9