MFJ CW-Elmer MFJ-419, Instruction Manual, Page: 4 / 24

MFJ-914 CW-Elmer
Version 0 4
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2022 MFJ Enterprises, Inc.
Introduction
Morse Code has been used from the wire telegraph days and from the
very beginning of radio. For many amateur radio operators it is a relaxing
mode of communication even though it is no longer required for an
amateur radio license. There are many advantages to using CW once
you learn the code.
The MFJ-419 CW-Elmer is a multi-function training tool for learning the
International Morse Code. It is both a Receiving and Sending trainer to
help you to both learn the code and teach you how to send clean code
on one little box.
The Send mode the MFJ-419 will act like a code practice oscillator
allowing you to practice sending Morse code and will display the
characters both in code and in text. The Analyze setting will display your
speed and timing to help you to send better code.
The Receive mode of the MFJ-419 will send you code to help you to
learn the characters. It can send in normal spacing or two Farnsworth
speed modes sending the characters faster but spacing to the
programmed speed. There is also a USB Text mode where you can use
a terminal program to send text either from a keyboard or a short text file
to the MFJ-419 CW-Elmer so you can listen to real text.
There is also an Exercise mode that will help you with training to make
correct length dits and dahs and also the proper spacing between the
dits and dahs and between characters and words.
Front Panel Controls
1 Power Button - Push in for ON
2 Internal Key – Press to key
3 Micro USB Connector – USB port for power and data
4 External Key Jack – for external straight key
5 Head Phone Jack
6 Display
7 Battery Cover
8 Internal Speaker
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