Transponder Control (Xpdr); Ident; Standby; Alt - Garmin 80 Pilot's Manual

Apollo CNX80 Pilot's Guide

Transponder Control (XPDR)

If a remote Apollo SL70 transponder is connected and setup to oper-
ate with the CNX80, the Transponder Control Mode will allow you to
control your transponder from the CNX80 front panel. 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 annunciator 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 annunci-
ator will appear to the left of the squawk code.
ON
Press the ON key to enable Mode A operation, which shows the four-
digit squawk code. An ON annunciator will appear to the left of the
squawk code.

Alt

Press the Alt key to enable Mode C operation, which also sends alti-
tude 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.
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