Furuno FS-2570 - Page 172

5.8 Antenna coupler, AT-1560
5-55
NO
Change C and L and then retry pi
matching.
TUNE OK
SWR< 2.0?
YES
(d)
Change C and L and then retry pi
matching.
NO
TUNE OK
SWR< 2.0?
YES
NO
DIP switch
SW4 is ON?
YES
TUNE ERROR
NO
TUNE OK
SWR< 3.0?
YES
TUNE ERROR
Select the best circui
t
you have tried.