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Chapter 12 Microphone Control - Kenwood TM-281A Instruction Manual

144 mhz fm transceiver
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You can change numerous transceiver settings by operating the Mic DTMF keys.
The following table shows what function is switched ON and OFF or which setting is changed by pressing the DTMF
keys in the appropriate mode of operation.
Key
RX Mode
1
N
A /
2
N
A /
3
N
A /
4
N
A /
5
N
A /
6
N
A /
7
N
A /
8
N
A /
9
N
A /
0
N
A /
C
A
L
L
A /
A
s s
g i
n
e
d
u f
n
t c
V
F
O
B /
A
s s
g i
n
e
d
u f
n
t c
M
R
C /
A
s s
g i
n
e
d
u f
n
t c
P
F
D /
A
s s
g i
n
e
d
u f
n
t c
D
W
/ N
_
_
D
o
w
n
U
/ P
#
U
p
MICROPHONE CONTROL
TX Mode
1
T
a r
n
s
m
t i
T
o
n
e
1
T
a r
n
s
m
t i
T
o
n
e
2
T
a r
n
s
m
t i
T
o
n
e
3
T
a r
n
s
m
t i
T
o
n
e
4
T
a r
n
s
m
t i
T
o
n
e
5
T
a r
n
s
m
t i
T
o
n
e
6
T
a r
n
s
m
t i
T
o
n
e
7
T
a r
n
s
m
t i
T
o
n
e
8
T
a r
n
s
m
t i
T
o
n
e
9
T
a r
n
s
m
t i
T
o
n
e
0
o i
n
T
a r
n
s
m
t i
T
o
n
e
A
D
o i
n
T
a r
n
s
m
t i
T
o
n
e
B
M
o i
n
T
a r
n
s
m
t i
T
o
n
e
C
M
o i
n
T
a r
n
s
m
t i
T
o
n
e
D
2
C
T
a r
n
s
m
t i
T
o
n
e
_
T
a r
n
s
m
t i
T
o
n
e
#
Storing Memory Name
S
e
e
n
t o
, e
b
e
o l
w
S
e
e
n
t o
, e
b
e
o l
w
S
e
e
n
t o
, e
b
e
o l
w
S
e
e
n
t o
, e
b
e
o l
w
S
e
e
n
t o
, e
b
e
o l
w
S
e
e
n
t o
, e
b
e
o l
w
S
e
e
n
t o
, e
b
e
o l
w
S
e
e
n
t o
, e
b
e
o l
w
S
e
e
n
t o
, e
b
e
o l
w
S
e
e
n
t o
, e
b
e
o l
w
e
e l
e t
c
r u
e r
t n
c
h
a
a r
t c
r e
o
e v
u c
s r
r o
o t
r p
v e
o i
s u
i d
t i g
o
v
e
c
u
s r
r o
o t
n
e
t x
d
g i
t i
o
n
r i f
m
M
e
m
o
y r
N
a
m
e
M
o
v
e
c
h
a
a r
t c
r e
d
o
w
n
M
o
v
e
c
h
a
a r
t c
r e
u
p
Storing DTMF
Storing Power-on
Memory
n I
p
t u
C
o
d
e
1
S
e
e
n I
p
t u
C
o
d
e
2
S
e
e
n I
p
t u
C
o
d
e
3
S
e
e
n I
p
t u
C
o
d
e
4
S
e
e
n I
p
t u
C
o
d
e
5
S
e
e
n I
p
t u
C
o
d
e
6
S
e
e
n I
p
t u
C
o
d
e
7
S
e
e
n I
p
t u
C
o
d
e
8
S
e
e
n I
p
t u
C
o
d
e
9
S
e
e
n I
p
t u
C
o
d
e
0
S
e
e
n I
p
t u
C
o
d
e
A
D
e
e l
e t
c
n I
p
t u
C
o
d
e
B
M
o
e v
u c
s r
n I
p
t u
C
o
d
e
C
M
o
v
e
c
u
n I
p
t u
C
o
d
e
D
C
o
n
r i f
m
P
n I
p
t u
C
o
d
e
_
3
M
o
v
e
c
n I
p
t u
C
o
d
e
#
4
M
o
v
e
Message
n
t o
, e
b
e
o l
w
n
t o
, e
b
e
o l
w
n
t o
, e
b
e
o l
w
n
t o
, e
b
e
o l
w
n
t o
, e
b
e
o l
w
n
t o
, e
b
e
o l
w
n
t o
, e
b
e
o l
w
n
t o
, e
b
e
o l
w
n
t o
, e
b
e
o l
w
n
t o
, e
b
e
o l
w
r u
e r
t n
c
h
a
a r
t c
r e
r o
o t
r p
v e
o i
s u
i d
t i g
s r
r o
o t
n
e
t x
d
g i
t i
12
o
w
r e
o -
n
M
s e
a s
g
e
h
a
a r
t c
r e
d
o
w
n
c
h
a
a r
t c
r e
u
p
63
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