MFJ MFJ-1924 Instruction Manual Download Page 3

MFJ-1924 Screwdriver Controller with Memory 

Instruction Manual 

Introduction 

 

The MFJ-1924 Screwdriver Controller provides manual operation for tuning 
screwdriver antennas. In addition, tuned positions can be saved in one of the 10 
presets so it can be recalled later. A 4-digit counter is used to display the current 
antenna position.  A sensor is required for the counter and automatic operation 
to function properly. This controller is compatible with single and dual sensor 
setups. If your antenna does not have a sensor installed, contact the antenna 
manufacturer or MFJ.  
 

Features 

 

4-Digit Turns Display 

 

10 Programmable Presets 

 

Manual Up/Down Buttons 

 

Current Sensor Trip for Antenna/Motor Protection 

 

Auto-Park: Lowers antenna to lowest position and zeros counter 

 

Powered From 12V Vehicle Supply

 

 
 
Front Panel 

 

 

 

Power:

  Push button switch powers the controller on and off. 

 

Up:

 Moves the screwdriver antenna up. 

 

Down:

  Moves the screwdriver antenna down. 

 

Buttons 1 – 5: 

Top bank of preset buttons. 

 

Buttons 6 – 10: 

Bottom bank of preset buttons. 

 

 
 

©

 2006 MFJ Enterprises, Inc. 

Summary of Contents for MFJ-1924

Page 1: ...Tel 662 32 Mo RPRISES INC dustrial Park Road le MS 39759 USA 3 5869 Fax 662 323 6551 del MFJ 1924 COPYRIGHT 2006 MFJ ENTERPRISES INC VERSION 0B CAUTION Read All Inst INSTRUC ructions Before Operating...

Page 2: ...Controller with Memory Instruction Manual Contents Introduction 1 Features 1 Front Panel 1 Installation 2 Motor Operating Voltage 3 Menu 3 Technical Assistance 5 Storing Memory 5 Schematic 6 2006 MFJ...

Page 3: ...roller is compatible with single and dual sensor setups If your antenna does not have a sensor installed contact the antenna manufacturer or MFJ Features 4 Digit Turns Display 10 Programmable Presets...

Page 4: ...The polarity of the motor connection determines the direction of the antenna If the motor moves in the wrong direction swap the wires or see the menu setup section for setting the correct direction 4...

Page 5: ...dd additional length 3 Connect the 4 pin Molex to the antenna motor control Antennas that do not have a 4 pin plug The plug can be cut off Use the chart below for wire color and its function CONTROL C...

Page 6: ...enna may result Menu The table below lists the features and options of the MFJ 1924 Use this table and the following section to adjust these settings specific to your screwdriver antenna and its requi...

Page 7: ...mode to display the current that is read from the current sensor 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 dow...

Page 8: ...Factory at 662 323 5869 You will be best helped if you have your unit manual and all information on your station handy so you can answer any questions the technicians may ask You can also send questi...

Page 9: ...MFJ 1924 Screwdriver Controller with Memory Instruction Manual 2006 MFJ Enterprises Inc 7...

Page 10: ...MFJ 1924 Screwdriver Controller with Memory Instruction Manual 2006 MFJ Enterprises Inc 8...

Page 11: ...The counter will increment each time the pins are touched together and then separated The up or down button must be press during the test The controller is good if the counter increments It will be t...

Page 12: ...als documents positional handbooks or other official publications The copy of this manual provided to the customer will not be updated to reflect current data Customers using this manual should report...

Page 13: ...MFJ 1924 Manual Version 0B Printed In U S A l Park Road 39759 300Industria Starkville MS...

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