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FURUNO FS1550
SETTING LSB MODE
Many amateur operators have asked me how to get mode LSB
This is done by switching on jumper S17-8 on the jumper panel
All my jumpers 3 to 8 on S17 are switched to on
Entering memo mode is done by switch on and press RCL together
When setting frequency RCL+RX key enter rx frequency
RCL+TX key enter tx frequency
Check READ TX ENT key before transmission that you are simpleX
More info can be seen in manual below in thumbnails 1-2