Specifications

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UBit "n" ON/OFF Default: 0
Mode: All Host: UB
_________________________________ Parameters: __________________________________
"n" - 0 to 255 specifying a User BIT that may be set ON or OFF.
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The UBIT is an extension of the old CUSTOM command which allows up to 255 ON/OFF
functions to be added to the PK-900 without burdening users with a large
number of commands. The functions controlled by UBIT are things that most users
will never have to change. Still they are important enough to some users or
application programs that we have included them under the umbrella command UBIT.
The following are examples of how to use the UBIT command:
UBIT 5 Returns the present status of UBIT 5
UBIT 1 ON Sets the function controlled by UBIT 1 to ON
UBIT 10 T Toggles the state of the function controlled by UBIT 10
UBIT Returns the state of the last UBIT value that was accessed
Listed below are the UBIT functions and the default state that presently have
been assigned. The default state of each UBIT is always shown first.
UBIT 0: ON: The PK-900 will discard a received a PACTOR block or packet if
the signal is too weak to light the DCD LCD.
OFF: The PK-900 will receive a packet regardless of the DCD status.
UBIT 1: OFF: Entering the command MONITOR ON or MONITOR YES causes the MONITOR
command to be set to 4.
ON: Entering the command MONITOR ON or MONITOR YES causes the MONITOR
command to be set to 6.
UBIT 2: ON: A Break signal received on the RS-232 line forces the PK-900
into Command mode from all modes except HOST mode.
OFF: A Break signal on the RS-232 line is ignored by the PK-900.
UBIT 3: ON: Logical packet channels on radio port 2 may be selected by either
a-z (lower case) or A-Z (UPPER CASE) letters.
OFF: Logical packet channels on radio port 2 must be selected by A-Z
(UPPER CASE) letters. Attempting to use lower case characters
gives the "Must be 0-9 or A-Z" error message.
UBIT 4: ON: When transmitting in Baudot, the PK-900 inserts the FIGS after
a space just prior to sending any figures (<space><FIGS><number>).
This permits receiving stations to decode groups of figures
correctly regardless of the USOS setting.
OFF: The PK-900 will not insert the FIGS character after each space.
MARS operators may want to set UBIT 4 OFF for literal operation.
UBIT 5: OFF: The PK-900 will always power up in Command Mode.
ON: The PK-900 will remain in the last mode (Converse, Command or
Transparent) provided the battery is jumper enabled.
UBIT 6: OFF: In Packet, monitoring is disabled when in the Transparent mode.
ON: Packet monitoring is active in the Transparent mode. MFROM, MTO,
MRPT, MONITOR, MCON, MPROTO, MSTAMP, MXMIT, CONSTAMP and MBX are
all active.
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