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CW Operation
Type CW and press return to place the KAM Plus in the CW mode of operation from the command
prompt (cmd:) by typing CW and pressing return. The KAM Plus will enter the CW code, ready to
receive Morse code at the speed set in the CWSPEED command. The KAM Plus will automatically
adjust its receive speed to match the incoming signal within approximately ±20 words per minute.
You will find that the KAM Plus usually receives CW most effectively when the AM/FM switch (on
the front of the KAM Plus) is pressed in to the AM position. If you find that your KAM Plus prints a
lot of E's and T's while receiving, try setting the CWBAND command to a smaller value. This nar-
rows the input bandpass filter on the KAM Plus, and while it makes tuning a bit more difficult, it
eliminates much of the noise that results in poor copy. If a properly tuned CW signal on your radio
results in the tone being received at some frequency other than 750 Hz, you can change the KAM
Plus center frequency using the CWTONE command.
Transmitting CW
To transmit CW with your KAM Plus, you must wire the KEY OUT pin from the HP port of the KAM
Plus to your key jack on your transceiver. The KAM Plus uses a relay to provide a ground on this
pin when sending CW, and therefore you must turn OFF any internal electronic keyer in your radio.
Be sure you have your radio in the CW mode. With the Default setting (CWPTT OFF) you must also
have your radio set for VOX operation so that it will actually transmit any time the KAM Plus closes
the relay. If you prefer (or need) to have the KAM Plus directly key the radio into transmit, set the
CWPTT command ON and be sure you have the PTT line of the KAM Plus connected to the PTT in-
put to your radio. In this mode, you do not need the radio set for VOX operation.
It is also possible to generate tone CW (audio tones applied to the microphone input of your ra-
dio). This is most useful when sending code on an FM radio (i.e. 2 meters) for code practice or
when connecting the KAM Plus to an amplifier and speaker for local code practice. To use this
mode, you must set the CWPTT command ON and the CWAUDIO command ON. The tone fre-
quency is controlled by the CWTONE command.
To begin transmitting, type [Ctrl-C][T] to place the KAM Plus in the transmit mode. Type your mes-
sage on the keyboard followed by [Ctrl-C][E]. This causes the KAM Plus to transmit your message
and then return to the receive mode when after all of the message has been transmitted.
In CW operation, several prosigns are used to indicate end of message, break, wait, and many oth-
er common phrases. To transmit these with the KAM Plus, type the keystroke shown to send the
pre-defmed prosign.
Keystroke Prosign Meaning
+ AR End of Message
= BT Break or Pause
% AS Wait
& KA Attention
# SK End of Transmission
( KN Invitation to Transmit
* AA All After
! SN Attention
You may also generate any prosign (combination of two characters transmitted as one) by typing
the PROSIGN character (Default \) and then the two characters to be combined.
In addition the MORSE command allows you to define several special code combinations. You can
specify which key you type on the keyboard, the code transmitted when you type that key, and the
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