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USER'S GUIDE
o Type
<CTRL-F>
Your PK-232 switches in the Morse Mode, sends your call sign at the speed set by
MSPEED
o Type
<CTRL-D>
The link is broken but the distant station's system keeps looking for your signals and
continues sending control signals, trying to maintain the link until it times out. This
method is considered poor operating practice.
<CTRL-D> and <CTRL-F> break the link and return your PK-232 to Command
Mode.
4.5.5
ARQ Listen Mode – Start Monitoring (
ALIST
Use the
ARQ contact. Your PK-232 tries to synchronize with whichever of the two linked ARQ sta-
tions is the Information Sending Station at the moment.
Mode A Listen operation does not give you error detection or error correction; your PK-
232 is not part of the synchronizing "handshake" between the other two stations locked
to each other. If the other two stations are enjoying a good link, you will probably get
good copy from that link.
If the stations you're monitoring are sending error codes and RQ codes and repeating
blocks of characters across their link, you'll display the repeated character blocks. If
they're having link problems, the data on your screen can look very strange indeed,
although the two synchronized stations are getting error-free copy.
4.5.6
Mode B (FEC) Call – Starting the Contact
After selecting AMTOR from the Command Mode, type
TOR FEC mode. You must be in the AMTOR Mode to start an FEC transmission. If you
type FEC from any other mode, your PK-232 displays:
?type AMTOR first
o
Type
X
o
Type
K
o
Type
<CTRL-D>
o
type
<CTRL-F>
o
type
<CTRL-C>
o
Type
R
Type
FEC
to start the AMTOR Mode B call or transmission, or answer a Mode B (FEC) CQ
call from a distant station. Your transmitter will be turned on and kept on continuously,
sending synchronous idle control characters.
Mode B (FEC) is recommended for calling CQ in AMTOR.
o
Sending CQ in Mode A (ARQ) gives the distant stations no clue as to who you are,
or what your SELCAL might be. See APPENDIX E for more comments by G3PLX.
PK232UG Rev. B 9/86
to break the link and send your Morse ID.
and then shuts off your transmitter.
to stop transmission immediately.
command to monitor ARQ traffic flowing between two stations linked in an
to turn on your transmitter.
to enter the Converse Mode and begin the contact.
to shut off your transmitter, or
to send your call sign in Morse and shut off your transmitter, or
to return to the Command Mode.
to shut down your transmitter and end the contact.
ALIST
Command)
FEC<RETURN>
4-13
OPERATING MODES
to enter the AM-
66
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