Epson Multi-mode Data Controller MFJ-1278B - Manual (Page 43)

MFJ-1278B MULTI-MODE BASIC OPERATION
OPERATIONAL MODES
Verifying Operation Status
Upon initial power up, the MFJ-1278B defaults to VHF Packet mode. The radio baud rate
defaults to 1200 baud. Radio port 1 is the default radio connection. You can verify the
operating status of the MFJ-1278B at any time by using the command MODE after the
display of the CMD: prompt. To check operation mode, type:
MODE <ENTER>
The MFJ-1278B will respond with modem status display lines followed with the cmd:
prompt.
Mode Switching With the MODE Command
Since the MFJ-1278B is a multi-mode controller, you will need to familiarize yourself with
the commands for changing operating modes from one to another.
The MFJ-1278B provides an easily used command to change the mode of operation. The
MODE command allows you to enter any operational mode. The MODE command also
enables the selection of any desired radio baud rate and modem. Table 4-3 lists the valid
codes that are used by the MODE command. The format for the MODE command is:
MODE xx,bbbb,m <ENTER>
Where xx is a 2 letter operational mode code as listed in Table 4-3, bbbb is the desired baud
rate or speed, and m is the desired modem as listed in Table 4-1. Leaving the m parameter
off of the MODE command, will cause the MFJ-1278B to select the default modem for the
selected mode using the modem as listed in Table 4-1. Most of the time, there is no need to
alter the baud rate settings, because the default settings are sufficient. So to specify HF
RTTY operation at the default baud rate of 45 baud and using the default narrow shift
modem, for example, you would type:
MODE HB <ENTER>
The user can alter any of the three parameters without having any effect on the other two.
We can change the operational mode to HF RTTY at 110 baud, just by adding the number
110 on the end of the MODE command entry. You would do this by entering the following
command:
MODE HB,110 <ENTER>
Similarly, to select the wide shift modem without changing either the operating mode or the
baud rate you would type:
MODE HB,110,V <ENTER>