2
2.
Sidetone Change
. The sidetone is set to 500 Hz when the keyer is turned on. To increase
the pitch press
and hold the 1 key until the desired tone is reached. The tone may be lo-
wered by pressing
twice and holding the 1, i.e.
.
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.
3.
Automatic or semi-automatic (bug) operation
. When the keyer is turned on, it is set for
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
.
4.
Dot-Space, Dash-Space Ratios (Weighting)
. "Perfect" Morse code is formed with the
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
and enter the dot ratio using the pound key
as a decimal.
Example: To enter a dot-space ratio of 0.7 press
or
.
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
and the new dash ratio.
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.
5.
Dot and Dash Memories
. The selectable Dot and Dash Memories are enabled on turn-on.
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.
