MFJ MFJ-1272M, Instruction Manual, Page: 9 / 20

MFJ-1272M Instruction Manual
9
Audio Out Connections
Table 3 below shows where you would place a jumper,
depending on what microphone pin is designated MIC.
The microphone designated MIC, is the pin that the
transmit audio from the TNC comes into the radio. For
example, if MIC is designated as being pin 1 on a
Kenwood microphone, then you would place a jumper on
position R1C in the AUDIO OUT section of header HD1.
Radio
MIC Pin
MFJ-1272M
Header
Jumper Placement
for Kenwood & Yaesu
Jumper Placement
for Icom & Radio
Shack
1 HD1 AUDIO OUT--R1C AUDIO OUT--R8C
2 HD1 AUDIO OUT--R2C AUDIO OUT--R7C
3 HD1 AUDIO OUT--R3C AUDIO OUT--R6C
4 HD1 AUDIO OUT--R4C AUDIO OUT--R5C
5 HD1 AUDIO OUT--R5C AUDIO OUT--R4C
6 HD1 AUDIO OUT--R6C AUDIO OUT--R3C
7 HD1 AUDIO OUT--R7C AUDIO OUT--R2C
8 HD1 AUDIO OUT--R8C AUDIO OUT--R1C
Table 3
Ground Connections
Table 4 below shows where you would place a jumper
depending on what microphone pin is designated GROUND.
For example, if GROUND is designated as being pin 7 on
a Kenwood microphone, then you would place a jumper on
position R7D in the GROUND section of header HD2.
Radio
MIC Pin
MFJ-1272M
Header
Jumper Placement
for Kenwood & Yaesu
Jumper Placement
for Icom & Radio
Shack
1 HD2 GROUND--R1D GROUND--R8D
2 HD2 GROUND--R2D GROUND--R7D
3 HD2 GROUND--R3D GROUND--R6D
4 HD2 GROUND--R4D GROUND--R5D
5 HD2 GROUND--R5D GROUND--R4D
6 HD2 GROUND--R6D GROUND--R3D
7 HD2 GROUND--R7D GROUND--R2D
8 HD2 GROUND--R8D GROUND--R1D