Download Manual - Kantronics

The NWS feeds a constant stream of weather information (@ 1200,8,N,1), from around
the world, to a satellite orbiting the Earth. Many cities are coming on line now to capture
this stream and rebroadcast it on fixed VHF commercial FM frequencies just above the
2-meter ham band.
Using your TNC in MODEM mode, with a PC and communications software, you can
copy these broadcasts. The content of the broadcasts may be plain ASCII text
(copyable with HyperTerminal) or graphics. For updated information on EMWIN and
software to copy its modes, search the Internet.
To copy the broadcasts, simply cable together the equipment mentioned above, tune
your VHF FM receiver to the local EMWIN frequency, set the INTFACE command to
MODEM, and follow the text on your PC screen.
KISS Mode
Amateur packet radio communications can use the TCP/IP suite of protocols instead 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 assembler/ 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.
Technical Note: In the KISS Mode, the TNC simply passes all received data to your
computer, and the computer program is responsible for all processing of that data,
including decisions concerning routing, digipeating, and other control decisions. The
TNC converts the packets of synchronous data being received from the radio link into
packets of asynchronous data to be passed to the computer over the serial port, and
converts the packets of asynchronous data from your computer into the synchronous
format suitable for radio transmission. The TNC retains the responsibility of determining
proper timing for channel access.
To place your TNC in KISS Mode, you must first have the command prompt (cmd:).
Then type INTFACE KISS and press return. And, finally, do a RESET.
After that you will not see any message or any prompt back from the TNC, it will now be
in KISS mode.
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