TM 1-1520-240-10
3-2-8
(2)
Channel selector switch — Set to 20.
(3)
Frequency mode selector switch — PRE-
SET.
(4)
Frequency mode selector switch — Set
220.025 MHz.
(5)
PRESET switch — Press. Radio is now pro-
grammed to accept MWOD.
(6)
Frequency mode selector switch — MANU-
AL.
(7)
Frequency selector switches — Enter first
WOD segment.
(8)
TONE switch — Press. First WOD segment
is now loaded to the nonvolatile memory of the radio —
Listen for BEEP.
(9)
Channel selector switch — Set to 19.
(10) Frequency selector switches — Enter sec-
ond WOD segment.
(11) TONE switch — Press.
(12) The remaining four WODs can be loaded in
a similar fashion by dialing the next lower preset channel,
selecting the next WOD segment. After entering last seg-
ment, listen for a double (3125 Hz) beep.
(13) Channel selector switch — Set to 14.
(14) Frequency selector switches — Enter date
code.
(15) TONE switch — Press. At this time, one
complete WOD with its corresponding date code has
been entered to the nonvolatile memory.
(16) Additional WODs can be loaded by repeat-
ing steps (5) through (15). Once WODs have been en-
tered, today’s operational date must then be entered.
(17) Channel selector switch — Set to 1.
(18) Frequency selector switches — Enter op-
erational date.
(19) TONE switch — Press.
b. Operate/Verify Modes.
(1)
Operate Mode.
(a)
Frequency mode selector switch —
PRESET.
(b)
Channel selector switch — Set to 20.
(c)
Frequency selector switches — Enter
220.000 MHz.
(d)
PRESET switch — Press. Radio set is
now programmed to operate in either normal mode or
anti-jam mode.
(2)
Verify Mode.
NOTE
This verification test only checks for presence
of a WOD with the corresponding date code.
It does not check for the authenticity of the
WOD segments entered.
(a)
Channel selector switch — Set to 20.
(b)
Frequency mode selector switch —
MANUAL.
(c)
Frequency selector switches — Enter
date code to be verified.
NOTE
If a single beep is not present for a particular
date code and the anti-jam mode is entered
using that date, a constant warning tone will
be heard signifying that the anti-jam mode
initialization cannot be properly completed.
(d)
Channel selector switch — Set to 19,
then back to 20. A single beep will be heard if WOD with
the date code in step (c) is present.
c. Erase Mode.
(1)
Channel selector switch — Set to 20.
(2)
Frequency mode selector switch —
PRESET.
(3)
Frequency selector switches — Enter
220.050 MHz.
(4)
PRESET switch — Press.
(5)
Frequency mode selector switch —
MANUAL.
(6)
TONE switch — Press. All MWODs are
now erased.
d. Training Frequency Load.
(1)
Channel selector switch — Set to 20.
(2)
Frequency mode selector switch —
PRESET.
(3)
Frequency selector switches — Enter
220.075 MHz
(4)
PRESET switch — Press.
(5)
Frequency mode selector switch —
MANUAL.
(6)
Frequency selector switches — Enter
desired training frequency.
(7)
TONE switch — Press. A single beep
will be heard.
(8)
The next frequency is loaded by enter-
ing the next lower preset channel, selecting the next
training frequency, and pressing the TONE switch. Up to
16 training frequencies may be entered. Following this
procedure.
