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Sidetone Change
2.
the pitch press
wered by pressing
The pitch of the tone when the "1" key is released will be the pitch of the CW sidetone. The
pitch of the keypad feedback tone will be lower.
Automatic or semi-automatic (bug) operation
3.
automatic, iambic operation. The keyer may be operated in the semi-automatic mode by press-
ing
. The keyer will now behave as a "bug". To return to full automatic operation, press
.
Dot-Space, Dash-Space Ratios (Weighting)
4.
length of a dot equal to the intra character space length (a dot-space ratio of 1.0) and the the
length equal to three space times (a dash-space ratio of 3.0).
The dot-space ratio is adjustable from 0.5 to 1.5 and is set to 1.0 on turn-on. To change the dot-
space ratio, press
Example: To enter a dot-space ratio of 0.7 press
To enter a dot-space ratio of 1.3, press
If the dot-space ratio entered exceeds 1.5 or is less than 0.5, the ratio will be set to 1.0.
The dash-space ratio is set to 3.0 on turn-on and is adjustable from 2.0 to 4.0. To change the
dash ratio, enter
Example: A dash-space ratio of 3.7 is desired; press
If the dash-space ratio entered exceeds 4.0 or is less than 2.0, the ratio will be set to 3.0.
The code speed is automatically adjusted for other than "perfect" dot and dash, ratios and is
based on the word "PARIS" (See Appendix A).
When a new dot-space or dash-space ratio is entered, the code speed will revert to the last
speed entered via **8 or **9. If no speed has been entered after turn-on, the keyer will revert to
15 wpm after a dot or dash ratio change. This will have the large effect if the variable speed
change feature has been used before changing the ratio.
Dot and Dash Memories
5.
The Dot Memory allows insertion of a dot during a string of dashes. For example, the letter
"Q"could be sent as follows:
The Dash Memory operates in the same fashion, allowing the insertion of a dash in a string of
dots.
To disable the Dot Memory, press
To enable the Dot Memory, press
To disable the Dash Memory, press
To enable the Dash Memory, press
Full iambic operation is available with the dot and dash memories enabled or disabled. This
feature is useful for generating characters with alternating dots and dashes like the period and
the letter "C". To utilize this feature, hold both the dot and the dash paddles.
. The sidetone is set to 500 Hz when the keyer is turned on. To increase
and hold the 1 key until the desired tone is reached. The tone may be lo-
twice and holding the 1, i.e.
and enter the dot ratio using the pound key
and the new dash ratio.
. The selectable Dot and Dash Memories are enabled on turn-on.
.
.
.
.
. When the keyer is turned on, it is set for
. "Perfect" Morse code is formed with the
or
.
.
2
as a decimal.
.
.
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