TM 1-1520-238-10
3-18.10
Change 3
12. CHAN switch – Set to Channel 01.
13. Frequency switches – Set to the current Day of
Month code. Code format is XAB.XXX, where A
and B are the day of the month the WOD is
used.
14. T–TONE switch – Toggle to TONE and release.
Listen for a wavering tone.
15. Function Selector switch – PRESET.
16. CHAN switch – Set to Channel 20.
17. Frequency switches – Set to 220.000 MHz
(Verify/Operate).
18. LOAD button – Lift preset frequency label cover
and push LOAD button. Listen for single beep.
Radio is now ready to receive TOD and then op-
erate in the active mode.
3.7B.7 MWOD Loading using KYK–13 Keyfill Device
The KYK–13 has six channels and can hold up to six
WODs. MWOD keying is supplied through cryptologic
sources. Load the radio as follows:
1. STATUS button – Press; ensure the frequency/
status LCD displays VER/OP.
2. Function Selector switch –MNL.
3. Preset Frequency Label Cover – Lift to reveal
FILL Port Access connector.
NOTE
The fill cable for the KYK–13 may be used
while loading MWOD information into the ra-
dio, but is not required.
4. KYK–13 – Set mode switch to OFF/CHECK.
5. KYK–13 –Install on FILL Port Access connector.
6. KYK–13 – Set mode switch to ON.
7. STATUS button – Press; ensure the frequency/
status LCD displays FILL.
8. KYK–13 – Set address switch to applicable
channel ( 1 through 6).
9. LOAD button –Press for two seconds. Listen for
a series of beeps and confirm frequency/status
indicator displays WOD OK. If frequency/status
indicator displays BAD, the KYK–13 must be re-
loaded prior to repeating steps 4 through 9 .
NOTE
The CHAN indicator steps down from
memory location 20 to 14, then displays 01
while the KYK–13 is connected and turned
on. This allows entry of the operational date
information if required.
10. KYK–13 – Set to next applicable channel and re-
peat step 9. Observe that WOD OK is displayed
on the frequency/status indicator after each
WOD is loaded.
NOTE
If operational date is desired, proceed to
step 11; if not desired, proceed to step 12.
11. STATUS button – Depress, if operational date
entry is desired. Set date on frequency switches
in XAB.XXX format. Toggle T–TONE switch to
TONE position and release.
12. KYK–13 – Set mode switch to OFF/CHECK and
remove KYK–13.
13. Preset Frequency Label Cover – Close.
The radio will return to its’ previous mode prior to loading
and both displays will return to the previous settings.
3.7B.8 Verifying MWOD is Loaded.
1. STATUS button – Press; ensure the frequency/
status LCD displays VER/OP.
2. Function Selector switch – Set to MNL.
3. Frequency switches – Set to the day of the
month to be verified. Code format is XAB.XXX,
where A and B are the day of the month of the
Date Tag associated with the WOD to check.
4. CHAN switch – Set to Channel 20. Switch mo-
mentarily to channel 19 and return to channel
20. A single beep verifies the MWOD with a
matching day of the month code stored in
memory. If a single beep is not heard, the code
is not stored in memory. Repeat steps 3 and 4 to
check other days of the month.
