Receive COMSEC Keys/FH Data Into ANCD via STU (STU Task 2)

TM 11-5820-890-10-8

7.3d.

Receive COMSEC Keys/FH Data Into ANCD via STU (STU Task 2)

DESCRIPTION

This task enables an NCS or communications specialist to receive and

store in an ANCD, those COMSEC keys and FH data, classified or

unclassified, sent from another location via STU over telephone lines.

DETAILED FLOWCHART

RECEIVE COMSEC KEYS/FH DATA INTO ANCD VIA STU

SUBTASKS

RESULTS

ACTIONS

a. Coordinate STU transfer

(1)

Receive initial call from

N/A

sending station

(2) Coordinate STU transfer

(Proper STU keys; 2400 BPS;

PT/CT voice checked)

preparations

b. Prepare ANCD for

(1) Turn ANCD ON

select:

STU transfer

Soi Radio sUpervIsor

(2) Enter RADIO

Send Receive Database

sEtup Comsec Time

(3) Enter RECEIVE

receive:

Ancd Cfd Stu PC Mx

Loadset* Database* Time**

(4) Enter STU

Key*

Eset*

Mwod***

Connect to STU and press

(5) Enter Loadset/Database/

[RCV] (WAIT)****

Key/Eset as desired

c. Receive COMSEC/FH

(1)

Ensure you are ready for

N/A

sender to press [SEND]

data by STU transfer

(2)

Place your STU in secure

N/A

data mode

Receiving final data/

(3)

Press [RCV] in coordination

Transfer successful

with STU sender

Loadset, database, key, or Eset may be selected for the STU transfer.

Time cannot be transferred by STU.

***

The term "MWOD" is used in loading the Have Quick radio found in selected aircraft.

****

Do not press [RCV] until sending station is ready to press [SEND].

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