4.2B
GTX 320/320A TRAN SPONDER OP ER ATING IN STRUC TIONS
De tailed op er at ing in struc tions can be found in the (GARMIN P/N
190-00133-09) GTX 320/320A Pi lot’s Guide. Some high lights of
that pi lot’s guide are printed here.
Op er a tion of this tran sponder will be very fa mil iar to most pi lots.
Many pi lots will only need to know that the
re ply light
is the lit tle
caret
be side
the
IDENT
but ton, and that the TST func tion only
tests the re ply light. Pressing the
IDENT
but ton causes the spe cial
iden ti fi ca tion pulse to be added to any nor mal Mode A or Mode C
re plies, and it lights the re ply light, for 20 sec onds.
ON
pro vides
only Mode A re plies.
ALT
pro vides both Mode A and Mode C
(al ti tude) re plies, and is the nor mal op er at ing mode.
When chang ing codes in
ON
or
ALT
, do not pass through codes
0000 (gov ern ment), 7500, (hi jack), 7600-7677 (COM Mu ni ca tion
fail ure), or 7700-7777 (EMER GENCY), or it may trig ger an au to -
matic alarm, at Air Traf fic Con trol.
SCHWEIZER MODEL 269C-1 HELICOPTER
CSP-C1-1A
FAA Approved: 03 Oct 1995
10.1
Revised: 29 Mar 2001
