52
Basic Operation
Transponder Control (XPDR)
If a remote compatible transponder is connected and setup to operate with the GNS 480, the Transponder
Control Mode will allow you to control your transponder from the GNS 480 front panel. Some features are
common to the available transponders and are explained below. Press
XPDR
to activate Transponder mode.
Ident
Press the
IDNT
key once to activate the Ident mode. The key label will be highlighted and an IDNT annuncia-
tor will appear by the squawk code for 20 seconds.
Standby
Press the
STBY
key to place the transponder in Standby mode. No information will be transmitted while in
Standby mode. A SBY annunciator will appear to the left of the squawk code.
ON
Press the
ON
key to enable Mode A operation. An ON annunciator will appear to the left of the squawk code.
ALT
Press the
ALT
key to enable Mode C/S operation, which also sends altitude data along with your squawk code.
An ALT annunciator will appear to the left of the squawk code.
Transponder Line Selection Keys
Press the
Menu/Enter
key to display the keys on the right side of the screen.
Emergency
Press the
Emrgncy
key to select the emergency 7700 squawk code. This menu item is available when used
with the SL70, SL70R, GTX 32, GTX 327, GTX 33, and GTX 330.
Transponder Mode Smart Keys
XPDR
Содержание Apollo CNX80
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