7.3 Transmitter Adjustments
Make sure your PK-232 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-232's AFSK level and
transmitter microphone gain are not adjusted properly, other stations
will not be able to copy your signals. Check your plate or collector
current or the power output of your rig before going on the air.
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-232 into FEC AMTOR transmit.
If you are using a terminal or terminal program, the following will
place your PK-232 and transceiver into the transmit mode.
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-232 into the receive mode.
o Wait a bit to see if you get a response. If not, you can repeat
the above procedure.
7.3.3 Answering an FEC AMTOR CQ
Normally when you see a station calling CQ in FEC AMTOR, you will want
to answer him using ARQ AMTOR. Remember that ARQ AMTOR is the
protocol that reduces the chance of transmission errors.
Let's assume you hear NNML calling CQ. To answer, do the following:
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