+
After you switch to HOST mode, your TNC will remain in HOST mode until you
switch to COMMAND mode. The easiest way to switch out of HOST mode is to
use your host mode software (see instructions with that software). If you begin
using Pacterm while the TNC is in HOST mode, you will see the message
“
SØØ ”, sent by the TNC to indicate that it is in HOST Mode. If you see this
message, you must first exit the Host Mode before you can start talking to your
unit with a program such as Pacterm. You must send three characters to the TNC
in order to exit the Host Mode and go back to COMMAND mode. First, send a
FEND character (ASCII code 192), then the letter q (upper or lower case is ok),
and finally another FEND character. Your TNC will then leave Host Mode,
switch to COMMAND mode, and send the usual Kantronics sign-on message. If
you use a terminal program other than Pacterm, it may send these characters au
-
tomatically, or it may require that you carry out this same procedure to get out of
HOST mode and to COMMAND mode. See Appendix D for details on this pro-
cedure.
KISS Mode
Amateur packet radio communications can use the TCP/IP suite of protocals in-
stead of AX.25 by switching to KISS mode and running software that supports
the KISS code designed by Phil Karn (see references at end of this section). The
KISS protocol specifies the communication between a TNC and a host (e.g.,
computer).
KISS Mode allows the TNC to act as a modem and packet assem
-
bler/disassembler (PAD). In KISS Mode, data-processing is shifted from the
TNC to a computer running special software supporting the KISS code designed
by Phil Karn. KISS code supports higher level protocols (i.e. TCP/IP) for sharing
computer resources in a network fashion. Examples of TCP/IP programs are
NET, NOS, and JNOS. Also, some networking software (G8BPQ) requires the
KISS Mode of operation.
Packet Modes of Operation Other Modes of Operation
User’s Guide 212 KAM’98 v 8.3