AMERITRON SDC-103 Instruction Manual - Page 6

Browse online or download pdf Instruction Manual for Controller AMERITRON SDC-103. AMERITRON SDC-103 13 pages. Automatic screwdriver antenna controller for icom radios

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SDC-103 Automatic Screwdriver Controller (ICOM)

powering up unit.

Hold Setup Button + Power On

Set UP

Hold Skip Button + Power On

Off

20 Off

Operation

Setup Menu

The SDC-103 controller must be calibrated for the screwdriver antenna that it

will be connected to. This includes band selection and the selection of the motor

trip current.

Setup Menu Navigation

After entering setup, the setting and the value are displayed. Pressing Up or

Down changes the value. Pressing the Select, Skip, or Enter buttons will save

the selected value and move to the next setting. After the end is reached the last

value is saved and the controller continues with normal operation.

Trip Current

This is shown in the menu with a "C" in the left-most digit. The

remaining 3 digits will display the currently selected value. The trip

current value is used to determine when the motor has stalled and

immediately shuts the motor off. This feature protects the motor from

damage if the antenna becomes stalled. The current is displayed as

Cxxx, which translates into x.xx amps. The default setting is C075 or

0.75 amps. This is also the setting for use with the Ameritron SDA-100

Screwdriver Antenna.

Trip Current Selection

The trip current value is used to determine when the motor has stalled

and immediately shuts the motor off. In order to determine the trip

current value that needs to be set, the controller can be turned on in

current mode to display the current that is read from the current sensor.

Press the UP button while turning the power on.In this mode, when the

antenna is moved, the current drawn by the motor is shown. Stalling the

motor by moving the antenna all the way down will show the stall

current of the motor. A value between ¼ and ¾ of the stall current

should be enough for the trip current setting and is shown on the

display in the same way as setting the trip current.

Relay Delay

Setup Menu Flow

Normal Operation

Band Menu Flow

17 Off

15 Off

automatic antenna control

Trip Current (C)

160 Off

80 Off

12 Off

10 Off

Instruction Manual

Relay Delay (d)

40 Off

6 Off

Normal