MFJ-441 Instruction Manual
SlimLine Econo Keyer
5
Jumper Settings
JMP 1 JMP 2
Keying Mode
D
D
Direct *
D
G
Invalid
G
D
Invalid
G
G
Grid Block
JMP 3
Iambic Mode
A
A *
B
B
JMP 4 JMP 5
Leading Zeros
L
L
none
L
H
0
H
L
O *
H
H
T
JMP 6 JMP 7
Other Zeros
L
L
0 *
L
H
0
H
L
O
H
H
T
JMP 8
Nines
L
9 *
H
N
JMP 9
Speed Range
L
5 – 65 WPM *
H
10 – 40 WPM
* Factory defaults
