PK-232 – MBX OPERATING MANUAL COMMAND SUMMARY
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UBIT 9: ON: In AMTOR a received WRU character (FIGS-D) or in Pactor a <CTRL-E> will
cause the Auto-Answerback text to be sent regardless of the setting of WRU.
In AMTOR this is subject to the setting of the CODE command.
OFF: In AMTOR and Pactor a received WRU character will have no effect.
UBIT 10: OFF: Polling in the HOST mode is subject to HPOLL and must be done for all
changes in status.
ON: Status changes (e.g., Idle to Tfc) in AMTOR, FAX, TDM or NAVTEX causes
the PK-232 to issue the following host block:
SOH $50 n ETB
where n is $30-36, the same number that the OPMODE command furnishes.
This block is subject to EPOLL.
UBIT 11: ON: A "Connected" message appears when an AMTOR or Pactor ARQ link is first
established using seven-character SELCALLs (CCIR 625).
OFF: No Connected message appears at the start of ARQ communications.
UBIT 12: OFF: The Packet Morse ID (MID) is ON/OFF keying of the low tone.
ON: The Packet Morse ID is sent in 2-tone FSK with the low tone being key-down
and the high tone representing key-up. Use this setting to keep other sta-
tions from sending a packet during the Morse ID.
UBIT 13: OFF: MailDrop Connect status messages are always sent to the local user, regard-
less of the setting of MDMON.
ON: Remote user dialog and Connect status messages with the MailDrop are
shown only if MDMON is ON.
UBIT 14: OFF: In Packet, the transmit buffer for data sent from the computer to the PK-232
is limited only by available PK-232 memory.
ON: In Packet, the serial flow control will permit only a maximum of 7 I-Frames
to be held by the PK-232 before transmission. This solves a problem with the
YAPP binary file transfer program which relies on a small TNC transmit buffer
to operate correctly.
UBIT 15: Not used in the PK-232.
UBIT 16: Not used in the PK-232.
UBIT 17: OFF: Morse, Baudot, ASCII and AMTOR transmissions start when commanded by
the user or an application program.
ON: Morse, Baudot, ASCII and AMTOR transmissions will not begin until the
channel is clear of signals. The channel is considered clear when both the
DCD and the Squelch input are inactive. The PERSIST and SLOTTIME delay
functions are used if PPERSIST is ON, otherwise the DWAIT time is used.
UBIT 18: OFF: In Packet operation, the FRACK (or FRICK if enabled) timer is used to retry
packets that were not acknowledged.
ON: An experimental Master/Slave relationship is established when a Packet con-
nection is made. This is designed for meteor scatter operation and is de-
scribed in detail under the FRICK command.
UBIT 19: Not used in the PK-232.
UBIT 20: Not used in the PK-232.
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