Specifications

o Wait a bit to see if you get a response. Your transmitter will
begin to key on and off and you will see a CONNECTED message when
someone calls you in ARQ PACTOR. If you do not get a response,
you can repeat the above procedure or you can go look for other
PACTOR stations as described in the next section.
11.6.3 Answering an Unproto PACTOR CQ
You must be in the PACTOR Listen (PTL) mode to monitor other PACTOR
stations. When you are in the PACTOR Listen mode, you can monitor
both the 1 second "chirps" of connected PACTOR stations, and the
continuous transmissions of unprotocol PACTOR stations calling CQ.
Normally when you see a station calling CQ in unproto PACTOR, you will
want to answer him using ARQ PACTOR. Remember that ARQ PACTOR is the
protocol that has the smallest chance of transmission errors.
Let's assume you hear N7ML calling CQ. To answer, do the following:
o If you are using an AEA PAKRATT for WINDOWS program, check the
program manual for instructions on starting an ARQ PACTOR
contact.
o If you are using a terminal or terminal emulation program, simply
type "PTC N7ML<Enter>" to start a linked or connected PACTOR
contact. After your PK-900 has locked or synchronized with the
distant station, which will be indicated by the LCD display
changing from PHASING to IDLE, you will see a CONNECTED message
on your screen. You may then begin your conversation.
N7ML DE YOURCALL...etc
o When you finish typing your comments or traffic to the other
station and wish to let the distant station transmit, you will
need to type "KKK" or "BTU" to let the other station know that
you are going to change the link direction.
o Then, type a <CTRL-Z> (Hold the "CTRL" key down while typing
the Z) to turn the link over to the other station.
<CTRL-Z> is the character defined by the PTOVER command that
switches your system from being the Information Sending
Station (ISS) to the Information Receiving Station (IRS) and
switches the distant system from being the information receiving
station to the information sending station.
The FCC requires station identification once every ten minutes. It's
sufficient to begin with "QRA (mycall)" or end your transmission with
"QRA (mycall)" before the <CTRL-Z> changeover code, or use the
<CTRL-B> "HERE-IS" to send your own Auto-AnswerBack message. For the
"HERE-IS" command to function, you must have your AAB text entered.
See appendix A for the AAB command.
3/93 11-6