PK-232 MBX Operating Manual - N3UJJ

PK-232 OPERATING MANUAL
COMMAND SUMMARY
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 stations from sending a packet during the Morse ID.
UBIT 13: OFF: MailDrop Connect status messages are always sent to the local
user, regardless 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.
UBI- 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 connection is made. This is designed for meteor scatter
operation and is described in detail under the FRICK command.
UBIT 19:
UBIT 20:
UBIT 21:
Not used in the PK-232.
Not used in the PK-232.
Not used in the PK-232.
UBIT 22: ON In the Packet mode, the PK-232 will respond to the receipt of an
UNPROTO frame addressed to QRA by sending an LTNPROTO ID packet
frame within 1 to 10 seconds. This feature is compatible with
TAPR's ANSWRQTLA command.
OFF: The PK-232 does not respond to UNPROTO frames addressed to QRA.
UBIT settings 23 and above are reserved for future expansion.
2/93 A-77
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