MFJ-1270C/1274C MANUAL ADVANCED OPERATION
Page 50
ADVANCED PACKET OPERATION
This chapter describes some aspects of packet operation that you don't need to
be concerned with for everyday conversational operation. You will want to
consult this chapter if you are using your station for special applications such as
a Packet Personal Mailbox, Bulletin Board, binary file transfers, Packet picture
transfers or running a "host" program. This chapter also discuss use of the
newly developed packet anti-collision feature. HF and OSCAR packet operation
is also discuss in detail in this chapter.
We will use the term "computer" to refer to computers or terminals. In the
command examples, the MFJ TNC's prompts and other messages are shown in
ordinary type, your responses are shown in
bold face
, and received packets are
shown underlined. Commands and other special keywords are shown in upper
case; other text entered to the MFJ TNC is shown in upper and lower case.
Special Characters
The MFJ TNC recognizes a number of special characters for input editing, flow
control, and other control functions. You can change any of these special
characters to customize the MFJ TNC to suit your applications, your computer,
or your whim. Most of the characters are set by commands which specify the
ASCII character code for the desired character. You can disable any special
character feature by setting the character value to 0. Input editing characters
may be disabled with no serious effects. You should use caution in disabling the
flow-control or Command Mode entry characters. Also be careful not to set two
special characters to the same value.
Special characters are normally set to various control characters. Control
characters are entered by holding down a special control key while typing
another key. For example, control-C, or <CTRL-C> is entered by holding down
the control key while typing
C
. If your computer doesn't have a special control
key, you will have to consult your computer's documentation to see how to enter
these characters. If you will have difficulty entering control characters, you can
change the special characters to, for example, seldom- used punctuation.
The action of each special character is described in detail under the entry in
Chapter 6 for the command that sets that character.
