TM 55-1510-215-10
Corporation. Although, is easier to use the ground
1. Handset - Remove from cradle.
station map for reference, you can locate a receivable
station by rotating the channel selector knob listening to
2. CHAN SET button -Press.
each channel until a dial tone is heard.
3. Channel selector knob -Rotate to select
(5) Channel selector knob .
The channel
desired channel number in channel display window and
selector knob is used to position the desired channel
listen for a dial tone.
number in the channel display window.
NOTE
(6) Cradle. The cradle is used to store the
handset. It incorporates a spring loading feature, which
If a ground service station map is not
keeps the handset firmly in place. Placing the handset
available, rotate through the channel
in the cradle will disconnect calls.
numbers until a dial tone is received.
(7) Handset.
The handset
provides
for
Press-to-talk button - Press momentarily to summon
transmitting and receiving calls.
operator. When the operator responds, place call giving
your city of registry, your phone number and the number
(8) Press-to-talk button. For proper operation
you wish call.
the press-to-talk button must be pressed while talking
into be handset Release the button while listening
(2) To answer a call.
(receiving). The press-to-talk button is also used to
summon the ground station operator when placing a
1. Handset - Remove from cradle.
radio telephone call.
2. Press-to-talk
button
-Press
and
c. Operating Procedures.
answer call
(3) To end a call.
(1) To make a call. First check your ground
service station map to determine the channel number of
1. Handset - Place in cradle, or press
the ground station within range, then proceed as follows:
HANG UP button.
Section III. NAVIGATION
3-13. Description.
(1) AUTO. Arms set to be actuat ed by impact
switch (NORMAL mode).
The overall navigation equipment group provides the
pilot and copilot with the instrumentation required to
(2) OFF. Turns set off.
establish and maintain an accurate flight course and
position, and to make an approach under instrument
meteorological conditions (IMC).
The navigation
configuration includes equipment for determining
3-14. Radio Magnetic Indicators (RMI).
altitude, attitude, position, destination range and bearing,
heading reference, groundspeed, and drift angle.
a. Description. Identical KNI 582 RMI indicators
are installed for the pilot and copilot (fig. 3-6). Each
3-13A. Emergency ocator Transmitter (ELT).
RMI provides aircraft heading and radio bearing
information to or from a VOR, ADF facility or RNAV
a. Description. An ELT, if installed, is provided to
waypoint.
Selector switches on the RMI provides
assist in locating the aircraft and crew in the event an
selection of either VOR or ADF as the information be
emergency landing is necessitated.
The output
displayed on either or both needles. The single needle
frequency is 121.5 and 243 MHz simultaneously. Range
points to either a tuned NAV 1 VOR or ADF while the
approximately line-of sight. The transmitter unit has a 3-
double points to either a tuned NAV 2 VOR or ADF
position toggle switch, placarded AUTO-OFF-ON,
navaid. Both RMI's are protected by 1-ampere circuit
located on one end the case.
The transmitter is
breakers located on the DC J-BOX in the nose avionics
accessible though the lower tail section access door.
compartment.
b. Controls and Functions .
b. Controls and Functions.
(1) Warning flag. Indicates loss of heading
signal, or that bearing information is unreliable.
3-12 Change 10
