MFJ-418 Pocket Morse Code Tutor Instruction Manual
© 1996-2006 MFJ Enterprises, Inc. 9
The MFJ-418 features smooth, clean audio, with sine wave output, instead of
the harsh square wave audio used by many other code-training machines. Also,
the MFJ-418 produces each dit and dah with a rise and decay time of
approximately 5 milliseconds, avoiding the "spikes" that cause distracting key
clicks. The MFJ-418's audio sounds like that of the high-quality tapes
frequently used for exams or that of a good CW transceiver.
Set Menu
The Set menu allows you to select the set of characters, words or QSOs from
which the MFJ-418 will send random practice when playback is started. These
are classified as Beginner Sets, Advanced Sets and Custom Sets. There are nine
Beginner Sets, 11 Advanced Sets and four Custom Sets. The Combine feature
(detailed below) allows you to combine Beginner and Custom Character sets for
your practice sessions.
Beginner Sets
The nine Beginner sets include letters, numerals, punctuation marks and
prosigns (procedural signals used on the air). When a single Beginner set is
selected, each playback will begin with the characters in that set sent in the
sequence listed below three times, separated by a word space. Then the
characters will be sent randomly. The three repetitions at the beginning are
designed to familiarize you with the sound of the characters before random
sending begins. This familiarization sequence is not sent when the Combine
function is enabled, indicated by a "+" character on the right side of the display.
The Beginner Sets are:
•
EISHTMO letter1
•
AWJNDB letter2
•
UVGZKRPX letter3
•
FCLQY letter4
•
12345 number1
•
67890 number2
•
. , ? / + * = prosign1
•
; : ' " - _ $ prosign2
•
( ) & ! % @ ¶ K prosign3 Table 1. Procedural Signals.
Note: In the above listings, punctuation marks are included in the prosign sets.
In addition, prosigns are represented by symbols and most prosigns are
displayed within "<" and ">" during playback as shown in Table 1. The
prosign1 set consists prosigns required on the FCC Amateur Radio tests.
Prosign
Represent
By
Display
As
End of Message
+ <AR>
End of Work
* <SK>
Wait
& <AS>
Understood
! <SN>
Starting Signal
% <KA>
Error
@ <HH>
Go Ahead
K K
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