PK-232 – MBX OPERATING MANUAL COMMAND SUMMARY
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WOrdout ON|OFF Default: OFF
Mode: Baudot, ASCII, AMTOR, Pactor and Morse Host: WO
Parameters: ON - Typed characters are held in the transmit buffer until a space, CR, LF, TAB,
RECEIVE, CWID, ENQ or +? characters(s) is typed.
OFF - Typed characters are sent directly to the transmitter.
Use the WORDOUT Command to choose whether or not you can edit while entering text for trans-
mission.
When WORDOUT is on, each character you type is held in a buffer until space, a carriage return, a
line fed, ENQ character ($05, <CTRL-E->) or the +?. You can edit words before the transmit buf-
fer's contents are sent to the radio. When WORDOUT is OFF, each character you type is sent to
the radio just as you typed it, without any delay.
WRu ON|OFF Default: OFF
Mode: Baudot, ASCII Host: WR
Parameters: ON - Your Auto-AnswerBack is sent after a distant station's WRU?
OFF - Your Auto-AnswerBack is NOT sent after a distant station's WRU?
Use the WRU command in Baudot and ASCII to enable or disable your PK-232's Automatic-Answer-
Back feature.
When WRU is ON, your PK-232 sends the AnswerBack on receipt of a distant station's WRU? re-
quest ("FIGS-D" or '$' in Baudot or a <CTRL-E> in ASCII). Your PK-232 keys your transmitter,
sends the text stored in the AnswerBack field (AAB), then unkeys your transmitter and returns to
receive.
The WRU function is defaulted ON in AMTOR as per the CCIR recommendation. To allow for spe-
cial applications where it may be helpful to disable the WRU function in AMTOR. UBIT 9 or bit 9 of
the CUSTOM command controls this feature.
XBaud "n" Default: 0
Mode: ASCII/Baudot Host: XB
Parameters: "n" - Specifies an exact baud rate used in receiving ASCII and Baudot RTTY.
XBAUD enables hardware decoding of ASCII and Baudot signals using the PK-232's 8530 Serial
Communications Controller IC. This can allow the PK-232 to achieve better copy of these signals as
well as allow non-standard data rates to be received. One disadvantage of XBAUD is that the soft-
ware commands RXREV and TXREV can not be used to invert the data so the correct sideband
must be used.
To use XBAUD simply enter the data rate that is desired in either ASCII or Baudot modes. For ex-
ample a 20-meter Baudot RTTY enthusiast may want to set XBAUD to 45 to improve copy of weak
signals on the band.
It is important to remember that XBAUD overrides both the RBAUD (in Baudot) and ABAUD (in AS-
CII) as well as the inverting commands TXREV and RXREV. This means that if XBAUD has been set
to 45 for Baudot operation, it should be reset to 0 before changing modes to ASCII. Otherwise the
PK-232 will attempt to receive ASCII at 45 bauds! To help reduce the chance of this error occur-
ring, the PK232 will disable XBAUD by setting it to 0 every time the SIGNAL Identification mode is
used and the command OK is entered.
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