21 lines
1 KiB
Text
21 lines
1 KiB
Text
About Packet Radio and TNT
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Packet-Radio is a special mode used by Radio Amateurs to transfer text and
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data over a radio link. Packet-Radio, as the name suggests, is packet
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orientated and uses the AX.25-protocol, a special version of X.25
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to fit Ham Radio needs.
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The interface between the radio transceiver and terminal/PC is called
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a Terminal Node Controller (TNC). It implements the AX.25 Protocol and
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consists of a micro-controller, a radio modem and RS232 interface.
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Special firmware such as WA8DED-Software and 'The Firmware' by NORD><LINK,
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which is available for most TNC's, make use of the hostmode protocol via
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the RS232-interface. The advantage of the hostmode is that it gives a
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PC control over the TNC. It allows applications to implement features
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which are not available in terminal mode.
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TNT (TNc Terminalprogram) is a terminal program which takes advantage
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of the hostmode protocol implementing features such as virtual screens
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for multiple traffic channels and various interfaces to other software
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packages such as tfkiss, dpbox and much more.
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