Specifications

NOTE: If the text you are receiving is garbled, you may be tuned
to a transmission at a different baud rate. Either try
tuning in a different station, or see Chapter 10 on
SIGNAL IDENTIFICATION to let the PK-900 determine the
kind of station you are listening to.
6.3 Transmitter Adjustments
Make sure your PK-900 is adjusted for your SSB transmitter as
described in section 3.5 and 3.5.2 of this manual before transmitting.
These are very critical adjustments. If your PK-900's AFSK level
and transmitter microphone gain are not adjusted properly, other
stations will not be able to copy your signals. Check the plate
current, collector current or power output of your rig before
transmitting.
6.3.1 Going On The Air
Make sure your transmitter and antenna are tuned and adjusted for the
band and operating frequency you are using. If you are using an AEA
PAKRATT program, see the program manual for the proper way to place
the PK-900 into RTTY transmit mode.
If you are using a terminal or terminal program, the following will
place your PK-900 and transceiver into the transmit mode.
o Make sure that you have selected Radio Port 1 by pressing the
CHSWITCH character defined in Chapter 4 followed by the number 0.
o Type "X" for XMIT and then press the <Enter> key to key your
transmitter and automatically enter the Converse mode.
As soon as you type the <Enter> key you will be transmitting. At this
point you are also in the CONVERSE mode and anything you type will be
sent in Baudot by your transmitter.
When you are finished transmitting, use one of the following methods
to return to receive.
o Type <CTRL-D> (the RECEIVE character) to shut off your
transmitter and return to the Command Mode.
o Type <CTRL-F> (the CWID character) to send a Morse ID and shut
off your transmitter and return to Command Mode.
o Type <CTRL-C> (the COMMAND character) to return to the Command
Mode and then type "R" to shut down your transmitter and end the
contact.
See the following sections for a sample QSO as well as some Baudot
operating hints.
6.4 A Typical Baudot RTTY Contact
As with most amateur operating modes, you can start a contact either
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