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From my limited experience, a TNC is the modem used to decode APRS data. If you tune to 144.390 you will hear a bunch of the sounds from back in the day when you had to dial up to get connected to the tubes, the TNC decodes those lovely sounds and can give that data to a computer or the transceiver display to show a text message.

There is a cool thing called EchoLink and WIRES. Radio1->Radio2 + Internet->Internet->Radio3 +Internet->Radio4 so the radio waves go to another radio connected to the internet and the signal makes its way through the tubes and back out again on another radio somewhere else. That is probably what you want to look into more.

[QUOTE="ke7vvt, post: 181951, member: 9711"] From my limited experience, a TNC is the modem used to decode APRS data. If you tune to 144.390 you will hear a bunch of the sounds from back in the day when you had to dial up to get connected to the tubes, the TNC decodes those lovely sounds and can give that data to a computer or the transceiver display to show a text message. There is a cool thing called EchoLink and WIRES. Radio1->Radio2 + Internet->Internet->Radio3 +Internet->Radio4 so the radio waves go to another radio connected to the internet and the signal makes its way through the tubes and back out again on another radio somewhere else. That is probably what you want to look into more. [/QUOTE]

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