Specifications

When you are finished transmitting, use one of the following methods
to return to receive.
o Type <CTRL-D> to shut off your transmitter and return to the
Command Mode.
o Type <CTRL-C> to return to the Command Mode and then type "R" to
shut down your transmitter and end the contact.
See the following sections for some Morse operating hints.
8.3.1 A Typical Morse Contact
As with most amateur operating modes, you can start a contact either
by "calling CQ" or by answering a "CQ" call by another station.
To call CQ first you must tell your PK-900 to start sending.
o Make sure that you have selected your transmitted text to go to
Port 1 by pressing the CHSWITCH character defined in Chapter 4
followed by the number 0.
o Type "X" to key your transmitter and start the unit sending.
o Type in your CQ message (use YOUR callsign) such as the one below:
CQ CQ CQ CQ CQ CQ DE YOURCAL YOURCAL YOURCAL
CQ CQ CQ CQ CQ CQ DE YOURCAL YOURCAL YOURCAL
CQ CQ CQ CQ CQ CQ DE YOURCAL YOURCAL YOURCAL K <CTRL-D>
o Type <CTRL-D> at the end of your CQ call. The <CTRL-D> puts both
your radio and the PK-900 into the receive mode after all the
text you have entered into the Transmit Buffer has been sent.
o Wait a bit to see if you get a response. If not, you can repeat
the above procedure.
8.4 Morse Operating Tips
The following "Special Function Characters" and immediate commands are
included for Morse operating convenience.
Immediate Commands from the Command Mode:
"L" Locks system to the speed of the incoming signal.
"R" Switches system to receive mode, unlocks receive speed,
forces receive speed to equal transmit speed
"X" Switches system to transmit mode and forces immediate
entry into Converse mode.
"K" Loads the Transmit type ahead buffer
"MO" Unlocks the Morse receive speed.
Special Function Characters embedded in transmitted text:
<CTRL-D> Shuts off the transmitter and returns the PK-900
to the Command Mode after sending the contents of the
transmit buffer.
<CTRL-T> Sends the TIME if the DAYTIME clock has been set.
1/93 8-3