SECTION 9
SUPPLEMENT 16 PA-28-181, ARCHER III
REPORT: VB-1611 ISSUED: JULY 12, 1995
9-94 6 of 6 REVISED: JANUARY 2, 2001
SECTION 9
SUPPLEMENT 16 PA-28-181, ARCHER III
REPORT: VB-1611 ISSUED: JULY 12, 1995
9-94 6 of 6 REVISED: JANUARY 2, 2001
SECTION 7 - DESCRIPTION AND OPERATION (continued)
Marker Beacon Receiver
The GMA 340’s marker beacon receiver controls are located on the left side of
the front panel (1 - 4). The SENS button selects either high or low sensitivity
as indicated by the HI or LO LED being lit. Low sensitivity is used on ILS
approaches while high sensitivity allows operation over airway markers or to
get an earlier indication of nearing the outer marker during an approach.
The marker audio is initially selected by pressing the MKR/Mute button (2). If
no beacon signal is received, then a second button press will deselect the
marker audio. This operation is similar to selecting any other audio source on
the GMA 340. However, if the second button press occurs while a marker
beacon signal is received, then the marker audio is muted but not deselected.
The buttons LED will remain lit to indicate that the source is still selected.
When the current marker signal is no longer received, the audio is
automatically un-muted. While in the muted state, pressing the MKR/Mute
button deselects the marker audio. The button’s LED will extinguish to
indicate that the marker audio is no longer selected.
SECTION 7 - DESCRIPTION AND OPERATION (continued)
Marker Beacon Receiver
The GMA 340’s marker beacon receiver controls are located on the left side of
the front panel (1 - 4). The SENS button selects either high or low sensitivity
as indicated by the HI or LO LED being lit. Low sensitivity is used on ILS
approaches while high sensitivity allows operation over airway markers or to
get an earlier indication of nearing the outer marker during an approach.
The marker audio is initially selected by pressing the MKR/Mute button (2). If
no beacon signal is received, then a second button press will deselect the
marker audio. This operation is similar to selecting any other audio source on
the GMA 340. However, if the second button press occurs while a marker
beacon signal is received, then the marker audio is muted but not deselected.
The buttons LED will remain lit to indicate that the source is still selected.
When the current marker signal is no longer received, the audio is
automatically un-muted. While in the muted state, pressing the MKR/Mute
button deselects the marker audio. The button’s LED will extinguish to
indicate that the marker audio is no longer selected.
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