T-34C INSTRUMENT NAVIGATION WORKBOOK
READ BACK - Repeat my message to me.
RECYCLE - Indicates that ATC is not properly receiving your transponder and that you should
reset the code or turn it off and back on again.
REPORT - Used to instruct aircrews to advise ATC of specified information; e.g., "REPORT
PASSING HAMILTON VOR."
REQUEST - To ask for.
ROGER - I have received all of your last transmission. It should not be used to answer a
question requesting a yes or no answer.
RTB - An acronym for "Return(ing) to Base."
SAY AGAIN - Used to request a repeat of the last transmission. Usually specifies transmission
or portion thereof not understood or received; e.g., "SAY AGAIN ALL AFTER ABRAM VOR."
SAY ALTITUDE - Used by ATC to ascertain an aircraft's specific altitude/flight level. When
the aircraft is climbing or descending, the aircrew should state the indicated altitude rounded to
the nearest 100 feet.
SAY HEADING - Used by ATC to request an aircraft heading. The aircrew should state the
actual heading of the aircraft
SEARCH AND RESCUE (SAR) - A service which seeks missing aircraft and assists those
found to be in need of assistance. It is a cooperative effort using the facilities and services of
available federal, state, and local agencies.
SPEAK SLOWER - Used in verbal communications as a request to reduce speech rate.
SQUAWK (MODE, CODE, FUNCTION) - Activate specific modes/codes/functions on the
aircraft transponder; e.g., "SQUAWK THREE/ALPHA, TWO ONE ZERO FIVE, LOW."
STAND BY - Means the controller or aircrew must pause for a few seconds, usually while the
other attends to other duties of a higher priority. Also means to wait as in "stand by for
clearance." The caller should reestablish contact if a delay is lengthy. "Stand by" is not an
approval or denial.
STEREO ROUTE - A routinely used route of flight established by users and ARTCCs
identified by a coded name, e.g., ALPHA 2. These routes minimize flight plan handling and
SWITCHING - A response to an ATC request to change radio frequencies and/or controllers.
TRAFFIC - A term used by ATC to refer to one or more aircraft
GLOSSARY OF COMMUNICATION TERMS