Epson Multi-mode Data Controller MFJ-1278B User Manual

The MFJ-1278B provides a dedicated multi-gray level modem for SSTV operation.  The 
modulator and demodulator frequencies of the MFJ-1278B are pre-set at the factory to allow 
SSTV operation  without any recalibration.  The MFJ-1278B supports all SSTV formats 
listed in Table 4-9. 
 

TVMODE(n) 

Formats 

1 

8.5 seconds B&W Robot 

2 

12  seconds B&W Robot 

3 

17  seconds B&W Robot 

4 

24  seconds B&W Robot 

5 

36  seconds B&W Robot 

TVX* 

72  seconds Color Robot 

TVX* 

Color Scotty 1, 2 

TVX* 

Color Martin 1, 2 

Table 4-9: MFJ-1278B SSTV Formats 

 

*These formats require using a special terminal program. 

 
The SSTV format can be changed by using the TVMODE (n) command.  The n is a number 
from 1 through 5 as listed in the Table 4-9.  For example, to set MFJ-1278B to 12 second 
SSTV format, you would type: 

The MFJ-1278B would be set to receive or transmit SSTV in the 12 seconds format.  Other 
SSTV formats can be invoked by tuning the TVX command ON. 

Installation of the MFJ-1278B for SSTV operation is the same as for the other modes of 
operation.  Installation of MFJ-1278B to your radio is described in Chapter 3 of this 
instruction manual.  You can use either Radio port for SSTV operation. 

Printer Connection 

If you have a terminal program which supports SSTV picture printing to the computer screen, 
then you should attach your printer to your computer printer port and not to the MFJ-1278B.  
In this case turn the PRINTGRA command OFF.  IF you intend to receive the SSTV picture 
and send it to the printer that is attached to the MFJ-1278B parallel port, then you should turn 
PRINTGRA command ON.