Operation
For simplicity, weighting is fixed at the standard dot-dash-space ratio of 1:3:1. Keying speed is adjustable over a
3 to 66 WPM range. The MFJ-412 should not interfere with the normal function of your transceiver's "Straight
Key" jack.
The dot and dash memories make sending easier. The memories allow the user to key a dot before the
completion of a dash and vice versa. This feature can be checked by setting the keyer to the lowest speed and
tapping first the dash lever and then the dot lever before the completion of the dash. The keyer will provide both
the dash and the dot. The dash memory can be checked in a similar manner. The dot insertion feature allows the
user to insert a dot by tapping the dot lever while holding the dash lever in. The dash insertion feature allows the
user to insert a dash while holding the dot lever in. The iambic operation feature allows sending of alternate dots
and dashes when both paddles are squeezed. The first paddle contacted will determine whether a dot or dash
occurs first.
Technical Assistance
If you have any problem with this unit first check the appropriate section of this 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
601-323-0549
or the
MFJ Factory
at
601-323-5869
. 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 questions by mail to MFJ Enterprises, Inc., 300 Industrial Park Road, Starkville, MS 39759;
by FAX to 601-323-6551; or by email to [email protected]. Send a complete description of your
problem, an explanation of exactly how you are using your unit, and a complete description of your station.
Schematic