T-45C TS, ADV, & IUT RIFP-01
Introduction to Radio Instruments
XII. Elements of an ILS approach
2.9.4.6.1.1.1
Sg 11, fr 2
A.
Localizer
INTRODUCTION TO RADIO
INSTRUMENTS
1.
Provides azimuth for front and back course
* Elements of an ILS
approach (unless antenna shielded from
approach
back course)
* ILS approach procedures
* Transition from instrument to
2.
Usable range: 35 degrees within 10 nm
visual scan
and 10 degrees within 18 nm of course
* Circling approach
centerline unless published approach
* Missed approach procedures
depicts a transition beyond this range
* Climb, cruise, and descent
profiles
3.
Beam width is 5 degrees wide, 2 1/2
* Safety/emergency procedures
degrees either side of centerline
Sg 11, fr 3
4.
Transmits on odd tenths from 108.1 MHz
through 111.9 MHz - Aural Morse code
BROWNSVILLE
116.3 BRO
Chan 110
2600
identifier will include the letter "I" preceding
LOM
1600
DEPOO
the normal 3-letter identifier
393 BR
I-BRO 7.4
LOCALIZER 110.3
I-CRP
NOTE: The localizer sensing equipment
Chan 40
(IAF)
CALIA INT
I-BRO 4.9
displays aboard the aircraft are four times as
MATAMOROS
114.3 MAM
sensitive as TACAN and VOR displays.
Chan 90
BACK COURSE LOC APPROACH
Sg 11, fr 4
OM
MM
IM
Runway
Localizer Antenna
LOCALIZER SIGNAL USABLE RANGE
Sg 11, fr 5, p1
ILS LOCALIZER COMPONENTS
2.5
2.5
LOCALIZER BEAM
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