microHAM STATION MASTER Manual page 42

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Simplified schematic of ROTOR port
Typical connection for an AC motor
Typical connection for a DC motor
Pictures above show connection of home brew AC and DC motors. Only one type of position sensor is needed.
If a potentiometer is used, the optimum value is 500 ohm which properly loads analog line and provides the best
immunity to RFI. However, any value from 500 to 5K ohm is acceptable.
IMPORTANT: Don't forget to protect motor supply with fuse! The fuse will protect relays contacts as well.
Commercial rotators can be connected two ways.
Rotators with external control port as Yaesu DXA
or DXC series can be connected as shown here.
Commercial rotators without external control ports
will require connections inside original controller.
Please refer to the manual of your rotator or ask
us for help.
Connection to Yaesu DXA/DXC rotator series.
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