曝光台 注意防骗
网曝天猫店富美金盛家居专营店坑蒙拐骗欺诈消费者
E AIRSPACE EACH PILOT OPERATING AN
AIRCRAFT EQUIPPED WITH AN OPERABLE
ATC TRANSPONDER MAINTAINED IN ACCORDANCE
WITH 14 CFR SECTION 91.413
SHALL OPERATE THE TRANSPONDER, INCLUDING
MODE C IF INSTALLED, ON THE
APPROPRIATE CODE OR AS ASSIGNED BY
ATC. IN CLASS G AIRSPACE, THE TRANSPONDER
SHOULD BE OPERATING WHILE
AIRBORNE UNLESS OTHERWISE REQUESTED
BY ATC.
37.7.1.4If a pilot on an IFR flight elects to cancel the
IFR flight plan prior to reaching destination, the pilot
should adjust the transponder according to VFR
operations.
37.7.1.5If entering U.S. domestic controlled
airspace from outside the U.S., the pilot should advise
on first radio contact with a U.S. radar ATC facility
that such equipment is available by adding
transponder" to the aircraft identification.
37.7.1.6It should be noted by all users of ATC
transponders that the coverage they can expect is
limited to line of sight." Low altitude or aircraft
antenna shielding by the aircraft itself may result in
reduced range. Range can be improved by climbing
to a higher altitude. It may be possible to minimize
antenna shielding by locating the antenna where dead
spots are only noticed during abnormal flight
attitudes.
37.7.1.7If operating at an airport with Airport
Surface Detection Equipment − ModelX
(ASDE−X), transponders should be transmitting
on" with altitude reporting continuously while
moving on the airport surface if so equipped.
37.7.2Transponder Code Designation
37.7.2.1For ATC to utilize one or a combination of
the 4096 discrete codes, FOUR DIGIT CODE
DESIGNATION will be used; e.g., code 2100 will be
expressed as TWO ONE ZERO ZERO. Due to the
operational characteristics of the rapidly expanding
automated ATC system, THE LAST TWO DIGITS
OF THE SELECTED TRANSPONDER CODE
SHOULD ALWAYS READ ‘00’ UNLESS SPECIFICALLY
REQUESTED BY ATC TO BE OTHERWISE.
37.7.3Automatic Altitude Reporting (Mode C)
37.7.3.1Some transponders are equipped with a
ModeC automatic altitude reporting capability. This
system converts aircraft altitude in 100 foot
increments to coded digital information which is
transmitted together with Mode C framing pulses to
the interrogating radar facility. The manner in which
transponder panels are designed differs, therefore, a
pilot should be thoroughly familiar with the operation
of the transponder so that ATC may realize its full
capabilities.
AIP ENR 1.1−41
United States of America 15 MAR 07
Federal Aviation Administration Nineteenth Edition
37.7.3.2Adjust transponder to reply on the
ModeA/3 code specified by ATC and, if equipped, to
reply on Mode C with altitude reporting capability
activated unless deactivation is directed by ATC or
unless the installed aircraft equipment has not been
tested and calibrated as required by 14 CFR Section
91.217. If deactivation is required by ATC, run off the
altitude reporting feature of your transponder. An
instruction by ATC to STOP ALTITUDE
SQUAWK, ALTITUDE DIFFERS (number of feet)
FEET," may be an indication that your transponder is
transmitting incorrect altitude information or that you
have an incorrect altimeter setting. While an incorrect
altimeter setting has no effect on the ModeC altitude
information transmitted by your transponder
(transponders are preset at 29.92), it would cause you
to fly at an actual altitude different from your
assigned altitude. When a controller indicates that an
altitude readout is invalid, the pilot should initiate a
check to verify that the aircraft altimeter is set
correctly.
37.7.3.3Pilots of aircraft with operating Mode C
altitude reporting transponders should exact altitude/
flight level to the nearest hundred foot increment
when establishing initial contact with an ATC. Exact
altitude/flight level reports on initial contact provide
ATC with information that is required prior to using
Mode C altitude information for separation purposes.
This will significantly reduce altitude verification
requests.
37.7.4Transponder IDENT Feature
37.7.4.1The transponder shall be operated only as
specified by ATC. Activate the IDENT" feature only
upon request of the ATC controller.
37.7.5Code Changes
37.7.5.1When making routine code changes, pilots
should avoid inadvertent selection of Codes 7500,
7600, or 7700 thereby causing momentary false
alarms at automated ground facilities. For example
when switching from Code 2700 to Code 7200,
switch first to 2200 then 7200, NOT to 7700 and then
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：
AIP航行情报汇编2(28)
