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									       Terminal Learning Objective

At the end of this lesson you will:

ACTION: Identify the characteristics, operating procedures
and functions of the TH-67 communications equipment and
transponder.

CONDITION: In a classroom environment given information
on the TH-67 communications equipment and transponder.

STANDARD: Answer questions pertaining to the
characteristics, operating procedures and functions of the
TH-67 communications equipment and transponder. Receive
a “GO” by correctly answering the required number of
questions on criterion referenced examination 011-0050.
   A: Enabling Learning Objective
Action: Identify the operating procedures of the
AA 95-732 audio select panel

Condition: Given information about the audio
select panel

Standard: IAW the TH-67 operator’s supplement
Audio Select Panel
 UHF
       VHF




Audio Select Panel
Audio Select Panel
 B: Enabling Learning Objective
Action: Identify the proper functions of the
KTR 909 UHF radio

Condition: Given information about the KTR
909 UHF radio

Standard: IAW the TH-67 operator’s
supplement
UHF Radio
Characteristics
Two-way radio
Frequency range--
                         CH01     MN


225.000 to 399.975       374.30
Mhz
Provides 3,500
channels
Guard receiver
incorporated
fix-tuned to 243.0
Range--approximately
50 miles line of sight
                 CH01     MN


                 374.30
   ON / OFF /
VOLUME / TEST
  control knob
• No warm up time
                    CH01     MN



• Internal memory   374.30
stores previously
used frequency

• Automatic
squelch
Up to 20 preset
  frequencies
                  CH012    MN

(channels) may     22 3
                  374.80
  be selected




 Select Mode Select
Channel pre-set channels
ATIS
       C H 0 1 MN
       31 6.1 5
GROUND

         C H 0 2 MN
         2 88.25
TOWER

        C H 0 3 MN
        2 4 8.55
     Rotate inner
  frequency select    C H 0 1 MN
      knob for
  increments of 25    3 6 10 . 3 0
                        7 2 42
                           9
                           3
                           4     7
                                 5
        KHz

      Rotate outer
   frequency select
Press Channel Mode
        knob for
    Select Button
    increments of 1
         MHz
   Transmitter
      Test             C H 0 1 MN
                       3 7 4 .30

  Push and hold
 inner frequency
  select knob to
activate transmitter
     test tone.
Receive Mode
Select Button
                C H 0 3 MN
  Main Mode
                2 4 1 . 00
 Receive Mode
 Select Button
                    C H 0 2 GDN
                            M
Main / guard Mode
                    2 48.20
Receive Mode
Select Button
                GD       MN
 Guard Mode
                2 4 3 . 00
            GD       MN
Photocell
            2 4 3 . 00
 Transmit
Annunciator
              CH02
                     TX
                    MN
                    GD

              2 48.20
   C: Enabling Learning Objective
Action: Identify the proper functions of the KX-165
VHF radio

Condition: Given information about the KX-165
VHF radio

Standard: IAW the TH-67 operator’s supplement
VHF Radio
              Characteristics
Two-way Nav/Comm radio
Comm frequency range--118.000 to 136.975 Mhz
Provides 760 channels
Guard frequency--121.500 Mhz
Range--approximately 50 miles line of sight
Nav radio-not used in primary
ON / OFF / VOLUME - control knob
• No warm up time

• Internal memory stores previously
used frequencies

• Automatic squelch
Inner knob – 50 KHz pushed in
              - 25 KHz pulled out

Outer knob – 1 MHz

 121.90      135.20




          Frequency Select Knob
121.90   135.20




   Frequency Flip - Flop Button
135.20   121.90




   Frequency Flip - Flop Button
135.20   T   121.90




         Transmit Indicator
   D: Enabling learning Objective
Action: Identify procedures for distributing
communications inside and outside the TH-67

Condition: Given information about the TH-67
cyclic or foot-mounted microphone switch

Standard: IAW the TH-67 operator’s supplement
Turn on and tune to proper Frequency
          CH01      MN


          374.30




Turn on and tune to proper Frequency
Set transmit select knob
E: Enabling Learning Objective
Action: Identify proper functions of the
KT-76A transponder
Condition: Given information about the
transponder
Standard: IAW the TH-67 operator’s
supplement
                Characteristics
 Enables the aircraft to identify itself electronically



Works with primary RADAR and is classified as
 secondary RADAR
Two modes of Operation:
                Mode A
                Mode C
             Window Control Knobs

Possibility of 4096 different code combinations
             Mode A codes
VFR flight -- 1200
Hijack -- 7500
Lost communications -- 7600
Emergency -- 7700
Mode C
Operating procedures
Function Selector Knob

    • •Test – Rotate and hold for reply light
        Altitude –- 100ftA) second warm up
        Standby(Mode increments from
         • On – 45 to 50
                     illumination
              No codes are (MODE C)
         -1000 to 35000 ft transmitting
Reply light
Ident - briefly press to alter
signal for approximately 25
seconds
Code windows
 Communication Phraseology

SQUAWK – Activate specific
 modes/codes/functions on the helicopter
 transponder:
  –   “SQUAWK one two zero zero”
  –   “SQUAWK altitude”
  –   “Stop SQUAWK”
  –   “SQUAWK Standby”
TH-67 Radio Equipment,
    Communications
 Procedures, and Radio
      Phraseology

								
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