MFJ-422E/422EX Instruction Manual
Electronic Keyer Paddle
13
Page 1: ...ad Starkville MS 39759 USA Tel 662 323 5869 Fax 662 323 6551 Model MFJ 422E 422EX COPYRIGHT 2017 M F J ENT ERPRISES INC VERSION 4A Electronic Keyer Paddle with Memory CAUTION Read All Instructions Bef...
Page 2: ...Auto button allows semi automatic bug and manual operations The keyer generates dots automatically when a squeeze or single lever key is used Dashes are manually made The keyer is completely manual wh...
Page 3: ...transmitter at a time This is an internal jumper selected option The unit is factory set to direct keying most solid state radios To change to grid block keying most radios with tube finals the power...
Page 4: ...de the case MFJ suggests the use of a good long life alkaline battery for longest operation 4 Remove the rubber foot from the bottom rear of the paddle 5 Remove the plastic cable clamp from the bottom...
Page 5: ...ubt try both jumper positions The transmitter will key continuously or not at all when the jumpers are connected to the wrong positions Keyer Operation 1 A nine volt battery or an optional power adapt...
Page 6: ...ped If deleting the first word of the message the keyer will play GO instead At the end of your message press and hold the Message button until the keyer sends an end of message character di dah di da...
Page 7: ...s in the serial number are sent Only three digits are sent for numbers less than 1000 use leading zeros when appropriate The serial number is automatically post incremented each time it is sent and up...
Page 8: ...ce paddle sending is finished press the Message button again to continue the message S Space inserts an extra standard word space into the message This command yields the same result as G7 but uses on...
Page 9: ...a Morse code message is sent to indicate the nature of the failure 8 The paddle the buttons and jumpers JMP3 to JMP9 are automatically tested for shorts to ground The LED should be off at this point 9...
Page 10: ...rn off the power Failure Message Meanings DH FAIL Dash level is shorted or improperly connected DT FAIL Dot level is shorted or improperly connected EE FAIL Non volatile memory circuitry is improperly...
Page 11: ...epetition di di dah dah di dit IMI Fraction Bar or Slash Bar dah di di dah dit DN End of Message Plus Sign or Cross di dah di dah dit AR End of Work di di di dah di dah SK Double Dash Equal Sign Pause...
Page 12: ...his manual If the manual does not reference your problem or your problem is not solved by reading the manual you may call MFJ Technical Service at 662 323 0549 or the MFJ Factory at 662 323 5869 You w...
Page 13: ...MFJ 422E 422EX Instruction Manual Electronic Keyer Paddle 12 SCHEMATIC...
Page 14: ...MFJ 422E 422EX Instruction Manual Electronic Keyer Paddle 13...
Page 15: ...is available by calling the Service Department at 662 323 0549 or the MFJ Factory at 662 323 5869 4 This warranty does not apply to kits sold by or manufactured by MFJ Enterprises Inc 5 Wired and test...
Page 16: ...MFJ 422E 422EX Manual Version 4A Printed In U S A 05 17 300 Industrial Park Road Starkville MS 39759 MFJ ENTERPRISES INC...
