Coded Matrix Block

by Ssg Donald "Mumbo" Mumm from Ranger Digest 5To help cut down on radio transmissions, our unit uses a CODED MATRIX SYSTEM to help send messages. It's nothing more than a set of blocks containing pre written words or messages you would commonly use on a military operation. The table can be as large as 14X12 blocks leaving 26 squares for each letter of the alphabet. And another 168 empty "blank blocks" for filling in whatever you need to write inside of them. Of course depending on the type of unit you're assigned too, each table matrix needs to be tailored for every mission or operation.But before you can successfully use this matrix system, you must fill in all the empty blocks across the entire top and left side of the page with a letter. Do not repeat none of the letters! Then fill in the words or messages inside the blank blocks.
To send a coded message - First, locate the word(s) or message you want to send  then write down the letter that appears to the immediate far left and directly above it.

For security reasons and just like a military CEOI,you need to change the 26 blocks containing the 26 letters of the alphabet every so often. Maybe not as often as a military CEOI (every 24 hours), but at least every few weeks or so until you suspect it has become compromised. Then simply just rearrange the 26 letters of the alphabet, NOT THE ENTIRE 168 BLOCKS

TR's tips

Here is a blank one. Fill in the blocks except for the top and right side, then copy it and reduce in size as small as you need.

Blank Matrix Block

Print your matrix block onto clear acetate and then you can put "cats eye" tape on the back to read at night. Also make a couple different ones with blocks filled out differently so even if the enemy gets your training one it will be 100% useless even with a super computer. Keep several blank copies for later.

W

X

Y

Z

A

B

C

D

E

F

G

H

I

J

V

a

b

c

d

e

f

g

h

i

j

k

l

m

?

U

n

o

p

q

r

s

t

u

v

w

x

y

z

&

T

0

1

2

3

4

5

6

7

8

9

+

#

odd

even

S

unit

patrol

team

squad

plt

CO

BN

LDR

CDR

DET

ATT

FO

MEDIC

Med evac

R

report

date time

coord loc

pers

wpns

ammo

food

water

eqpt

KIA dead

WIA hurt

MISS unkn

POW cap

radio freq

Q

opns

raid

recon

AMB

move cont

assem ble

fort ified

ATTK

DEFD

OFF

PTL Base

link up

LP/OP

meet ing

P

mission

HQs

SEC

SPT

ASSALT

junction

building/s

cross ed/ing

road

trail

forces

civilian/s

enemy

friend

O

status

execut start

term fin

halt stop

prep ready

move go to

help urgent

succe ssful

failed

aborted

detected

waiting

yes

no

N

disposition

radio freq

change new

we my

you your

their they are

send need

spot obsv

in-pos

lost

found

easy

difficult

unknown

M

transp

tank

truck

wheel

track

heli

plane

GRD

air

water

foot

VEH

para

helo

L

milt term

objt

IRP

RP

ORP

LD

PL

CP

area of op

by pass

en rte

dig in

con tact

break rest

K

milt term

signal

DPT

RTN

occu py/ID

E&E

watch out

check/ ck-out

silent

delay

cancel

immediate

conduct

withdraw retreat