Specifications

7.3 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. Always check your
plate current, collector current or power output of your rig before
transmitting.
7.3.1 Going On The Air
Make sure your transmitter and antenna are tuned and adjusted for the
band and operating frequency you are using. Before you transmit, you
must decide if you are going to "call CQ" or answer someone's CQ call.
7.3.2 Calling CQ in FEC AMTOR
If you plan to make a CQ call, you must do so in the FEC AMTOR mode.
This is required since an ARQ AMTOR transmission requires another
station to "Link-up" with. If you are using an AEA PAKRATT program,
see the program manual to place the PK-900 into FEC transmit.
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 your transmitted text to go to
Port 1 by pressing the CHSWITCH character defined in Chapter 4
followed by a number from 0 through 9.
o Type "FEC" then press the <Enter> key to key your transmitter and
automatically enter AMTOR FEC transmit 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 FEC by your transmitter.
o Type in your CQ message. Make sure you include YOUR Callsign,
your four-character Selcall (MYSELCAL) as well as your seven-
character Selcall (MYIDENT) so others can respond to your CQ call.
An example is shown below:
CQ CQ CQ CQ CQ CQ CQ DE N7ML (NNML) (VTMFFFF)
CQ CQ CQ CQ CQ CQ CQ DE N7ML (NNML) (VTMFFFF)
CQ CQ CQ CQ CQ CQ CQ DE N7ML (NNML) (VTMFFFF)
CQ CQ CQ CQ CQ CQ CQ DE N7ML (NNML) (VTMFFFF)
SELCALL NNML (VTMFFFF) 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.
o Wait a bit to see if you get a response. If not, you can repeat
the above procedure.
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