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MFJ-1278B MULTI-MODE OPERATIONAL COMMANDS
16LEVELS ON/OFF Mode: FAX/SSTV Default:ON
Parameters:
ON The MFJ-1278B will transmit and receive FAX and SSTV in 16 gray levels.
OFF The MFJ-1278B will transmit and receive FAX and SSTV in 8 or 4 gray levels
depending on how the MULTIFAX and 8LEVELS commands are set.
In FAX and SSTV modes, if 16LEVELS is ON and 8Levels is OFF, the MFJ-1278B will
receive and transmit FAX and SSTV data in 16 gray levels. As in 8LEVELS, the
16LEVELS command is effective only when the MULTIFAX command is turned ON. If
MULTIFAX is turned OFF, the MFJ-1278B is set to transmit and receive in 2 level FAX
and 4 level SSTV, regardless of the setting of 16LEVELS. The built-in printer port does not
support printing of 16 level data. A Special terminal program, such as MFJ MultiCom™
must be used to decode and display the multi-level FAX and SSTV data. Note that turning
16Levels ON will not turn 8Levels OFF, you must turn 8Levels OFF when setting the MFJ-
1278B to operate 16 gray levels.
AALT ON/OFF Mode: AMTOR Default: OFF
Parameters:
ON Allows use of the SELCALL set up in the ALTCALL command.
OFF The MFJ-1278B uses the SELCALL set up in the MYSELCAL command.
AALT determines whether the SELCALL set by the ALTCALL command, or the
MYSELCAL command is used in Mode A ARQ.
ABORT Mode: Mailbox Immediate command
This command gives the SYSOP total control over the Mailbox by allowing him to force a
disconnect on the Mailbox link. It immediately terminates any mailbox activity currently in
progress. You may use it to avoid any QRM, to cancel a FORWARD or NODEFORW in
progress. You can also use it to terminate mailbox usage by an unwelcome mailbox users.