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Chapter 10 Morse Operation
3. Wait a few seconds to see if you get a response. If not, repeat the above procedure.
Operating Tips
Type Ahead Buffer
Sometimes it’s convenient, or easier for you, to type a response to the other operator’s message while you’re
receiving it. Then when it’s your turn to reply, all you have to do is enter a keystroke or two and your message is
ready to go. You can use the type-ahead buffer in the DSP for just this purpose. To use it:
1. Enter the letter
K
or (
CONV
) to enter the Converse mode. Press (
RETURN
).
2. Type the message you want to send to the other operator. When you’re done with the entire message, enter
a (
CTRL-D
) to return to receive.
3. When it’s your turn to send, enter a ( CTRL-C ), X , ( RETURN ).
Your message will now be sent. By tacking on the (
CTRL-D ) at the end of your message, the DSP will
automatically turn off the transmitter after your message has been sent.
If, while entering a message into the buffer, it’s your turn to transmit and you don’t want to keep the other operator
waiting while you finish typing your message, enter a (
CTRL - C
),
X , (RETURN
). The DSP will send the contents
of the buffer, starting at its beginning. As it’s being sent, you can continue typing the rest of your message, ending it
with a (
CTRL - D
). As soon as the DSP finishes sending the buffer’s contents, it’ll automatically send your post-
buffer message.
Operating QSK
QSK (Full Break-in) is a feature found on some transceivers that allows you to hear the other operator’s signals in
between the dits and dahs you send out. To operate QSK:
1. Set up your radio for QSK keying per your radio’s instruction manual.
2. Put the DSP into the Morse mode. (
cmd:
MO
)
3. Enter:
XMITOK OFF
4. Enter: X
5. Type your message and disengage from transmit as described earlier in this chapter.
Note : If you’re using the DSP to copy code, enter a ( CTRL - D ) to force the DSP into receive when you
hear the other operator break in.
Morse Code Practice
Use your computer with your DSP to develop and improve your manual CW sending and receiving skills.
♦
Set your DSP for Morse receive operation and operate the hand-key attached to your radio.
♦
In most installations, your hand keying will be sent to the DSP and displayed on your monitor if your radio
has an audio “input monitor” or “sidetone” output and you’ve turned on those monitor functions.
♦
Send test words for a few minutes to acquaint yourself with the relationship between your hand-keying and
the Morse appearing on your screen.
♦
Practice keying at various speeds; observe how the system decodes your “fist.” You may be a bit unhappy
or surprised at the quality of your keying but after a few sessions you’ll notice an improvement.
Dits & Bits
If you enter a (
CTRL - T
) in your text, the DSP will send the current time if
DAYTIME
has been set and the date if
DAYSTAMP is ON .
The DSP will automatically track the speed of the received signal. However, if the sending station’s speed is
relatively constant, you can lock onto it—using
LOCK —to increase the accuracy of the copy.
Use the “Slow AGC” control on your radio, if it has one. When used in the CW mode, it can improve the signal-to-
noise ratio during reception, hence improving the DSPs ability to copy.
MORSE COMMANDS
September, 05 10-3