MFJ-1270C/1274C MANUAL BASIC OPERATION
Page 33
You may see two characters on your screen for every character you type, for
example:
cmd:RREESSEETT
Your computer is echoing the characters you type, and the MFJ TNC is also
echoing them. In this case, set duplex to FULL on your terminal to stop the
terminal from echoing characters to your screen.
New Lines and Line Wrapping
If everything displayed appears to be double-spaced, your computer is adding an
extra linefeed (<LF>) whenever it displays a carriage return (<CR>). Set
AUTOLF OFF to keep the MFJ TNC from also adding an <LF>. If you
change equipment you may have to set AUTOLF ON to restore the MFJ TNC 's
automatic linefeeds.
The screen-width parameter is set by default to 80, the width of many CRT
displays. The MFJ TNC will send an extra <CR> (or <CR> <LF> if AUTOLF
is ON) when 80 characters have been displayed on a line. If your computer does
not
automatically break long lines, you will need to set the screen width to the
width of your display. For example, for a computer using a TV set for a display,
you would set SCREENLN 40. If your computer does
automatically break
long lines, you should set SCREENLN 0 to disable this feature on the MFJ
TNC. Otherwise, you will get two <CR>s when the line wraps around.
A few computers will frequently lose the first characters of a line when several
lines are typed in rapid succession, for example, in the sign-on message. You
can give the computer more time between lines by setting NUCR ON (delay
after <CR>), or NULF ON (delay after <LF>). The delay is adjusted by
NULLS, which sets a number of character-times for the delay.
With the basic parameters set up which enable the MFJ TNC to be able to
communicate with your computer, we can now discuss some basic functions and
features of the MFJ TNC .
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