Epson MFJ-1278B manual Txuiframe ON/OFF, U1 UNproto, U2 UNproto

MFJ-1278B MULTI-MODE OPERATIONAL COMMANDS

TXUIFRAME ON/OFF Mode: Packet Default: ON

TXUIFRAME is used to tell the MFJ-1278B what to do with unconnected information left in its buffers. When this parameter is ON, all unconnected data are transmitted as "UI" (unconnected) frames.

The TXUIFRAME command should be OFF for bulletin-board stations as it precludes the unnecessary transmission of text that occurs when the BBS user disconnects and unacknowledged packets remain.

U1 UNproto Mode: Pactor Immediate Command

Issuing the U1 command from the p_cmd: prompt initiates the 100 baud FEC. The U1 mode is mainly used during poor band conditions. The MFJ-1278B will request a SPEEDdown to the U1 mode depending on the number of error-laden 200 baud information packets recieved. (ALSO SEE MAXDdown and NO200)

U2 UNproto Mode: Pactor Immediate Command

Issuing the U2 command from the p_cmd: prompt will initiate the 200 baud FEC mode. The U2 mode can also be used during good band condition where communications are real good. The MFJ-1278B will request a SPEEDUP to the 200 baud depending on the number consecutive good 100 baud information packets it receives. (ALSO SEE MAXUP and NO200)

UNPROTO call1 Mode: Packet Default: "CQ"

[VIA call2[,call3...,call9]]

Parameters:

call1 Callsign to be placed in the TO address field.

call2 Optional digipeater call list, up to eight calls.

This command is used to set the digipeat and destination address fields of packets sent in the unconnected (unprotocol) mode. Unconnected packets are sent as unsequenced I frames with the destination and digipeat fields taken from call1 through call9 options. When no destination is specified, unconnected packets are sent to CQ. Unconnected packets sent from